File scan report
Verdict Safe
Is Crystal
Unsigned installer with zero engine detections, common prevalence, and no malicious files it created or host contacts.
Read the whole reasonShow less
Strong evidence · Widely seen for a long time, and nothing harmful found.
The sample shows no malicious indicators from engines or external intelligence; standard security software should remain active while using the installer.
Good practice2 tips
We found nothing harmful in this file.
Run it only if it came from the developer's own website or an official app store.
Keep your antivirus and Windows updates switched on.
No scanner can promise a file is 100% safe.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
0 of 70 flagged
- Flagged 0
- No detection 70
- No result 5
- Code signing Unsigned
- Test run Completed
- First seen 9mo ago
Chapter 02
Why we think so
1 point against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
The file is a widely submitted installer that writes a Java runtime and launcher files. Sandbox shows process activity but no malicious verdict or known-bad network destinations.
Zero detections across 75 engines, including 17 major antivirus engines, removes any malware-family signal. The file is unsigned, yet its 1605 submissions over 221 days and 1313 unique sources indicate commodity distribution rather than targeted malware. Files it created and contacted hosts show no malicious indicators. While the import-table fingerprint matches one prior hacking tool sample, that file had 53 malicious detections; the current sample has none. The triggered rules reflect generic installer behaviour rather than confirmed malicious intent.
What We Detected
75 antivirus engines scanned the sample; none returned a malicious or suspicious result. The executable is unsigned and contains no code-signing certificate. Sandbox execution recorded four MITRE techniques labelled offensive (T1055, T1485, T1562.001, T1620) but produced no malicious sandbox verdict.
Threat Behavior
The installer drops a Java runtime and Crystal-Launcher files, creates desktop shortcuts, and contacts launcher.crystal-launcher.net over HTTPS. No file it created file or contacted host appears in our malicious cache. The import-table fingerprint matches prior samples, one of which was labelled Extreme Injector, but that sample triggered 53 engines while this one triggers zero.
What To Do Now
Keep Windows Defender and other security software enabled. If the software is obtained from the official Crystal Launcher site and matches expected behaviour, it can be used; otherwise treat any unexpected executable with caution.
Where this verdict could be wrong1 caveat
- similarHashes contains one malicious verdict (extremeinjector) on the same import-table fingerprint, but that sample had 53/70 engines malicious while this file has zero detections.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Zero detections across 75 engines
- Common-old prevalence with 1313 unique sources
- No malicious files it created
- Unsigned executable
6 sources checked · 5 complete · 1 partial. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 28sandbox rule tags
- 5spawned processes
- 4network contacts
- 32filesystem & mutex artifacts
What this file did when executed
This file was run in a sandbox and its runtime behaviour was observed.
Techniques observed in the sandbox
28MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1012
- T1016.001· Network recon
- T1027.002· Obfuscated code
- T1033· Reads user info
- T1036
- T1047
- T1053· Scheduled task
- T1055· Process injection
- T1059· Runs commands
- T1070· Covers its tracks
- T1070.006· Covers its tracks
- T1071· Application protocol
- T1082· System recon
- T1083· Scans your files
- T1087
- T1105· Network file transfer
- T1106
- T1112
- T1213
- T1222
- T1485
- T1497· Sandbox evasion
- T1553.005
- T1562.001· Disables security
- T1564· Hides artifacts
- T1564.003· Hides artifacts
- T1573
- T1620· In-memory loading
Observed activity
Processes started
5Programs the file ran, with their command lines.
software.exe"C:\Users\<USER>\Desktop\software.exe"javaw.exe"C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\javaw.exe" -Dfile.encoding="UTF-8" -Dcrystal.windowsEngine="true" -Djava.net.preferIPv4Stack=true -Xmx256M -Xms128M -Dcrystal.wrapper.graphicscard=4D6963726F736F667420426173696320446973706C61792041646170746572 -Dcrystal.wrapper.version=55 -Dcrystal.runtimedir=jdk-17.0.1+12 -Duser.home="C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\UserHome" -Djava.io.tmpdir="C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\UserHome\Temp" -cp "C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\launcher.jar" ovh.leszczu8023.crystalw…javaC:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\java -cp C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\launcher.jar ovh.crystallauncher.crystalwrapper.SubProcessMainCrystalLauncherN.exe"C:\Users\user\Desktop\CrystalLauncherN.exe"program.exe"C:\Users\user\Desktop\program.exe"
Network contacts
44 hosts, listed as 3 addresses, 1 link. Links show the host and path only.
- IP address
104.21.77.167 - IP address
23.216.81.253 - IP address
172.67.210.66 - URL
https://launcher.crystal-launcher.net/bootstrapNX/static/runtimes.xml
Files
30Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\CrystalLauncherInstallerNX\launchlog.txt - Written
C:\Users\<USER>\AppData\Local\CrystalLauncherInstallerNX\crystalRuntime - Written
C:\Users\<USER>\AppData\Local\CrystalLauncherInstallerNX\language.flag - Written
C:\Users\<USER>\AppData\Roaming\.crystalinst - Written
C:\Users\<USER>\AppData\Local\CrystalLauncherInstallerNX\crystalRuntimeBranch - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\launcher.exe
Show all 30 entries for files
- Written
C:\Users\<USER>\Desktop\Crystal Launcher.lnk - Written
C:\Users\<USER>\AppData\Local\CrystalLauncherInstallerNX\libChecksums - Written
C:\Users\<USER>\AppData\Local\CrystalLauncherInstallerNX\launcherChecksum - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\Downloads\jre_17.0.1-x64.zip - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\ - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\ - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\conf\ - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\include\ - Written
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\jmods\ - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\launcher.exe:Zone.Identifier - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\release.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-console-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-console-l1-2-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-datetime-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-debug-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-errorhandling-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-file-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-file-l1-2-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-file-l2-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-handle-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-heap-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp - Deleted
C:\Users\<USER>\AppData\Roaming\Crystal-Launcher\runtime\64\jdk-17.0.1+12\bin\api-ms-win-core-localization-l1-2-0.dll.tmp
Mutexes
2Named locks a program uses so only one copy runs; malware families often reuse them.
cversions.3.m\Sessions\1\BaseNamedObjects\DBWinMutex
Sandbox background — not the file
8The analysis machine's own processes and connections, recorded in every run.
- VM process
Explorer.EXEC:\Windows\Explorer.EXE - VM process
services.exeC:\Windows\system32\services.exe - VM process
svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p - VM process
svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup - VM process
svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc - VM process
lsass.exeC:\Windows\system32\lsass.exe
Show all 8 entries for sandbox background — not the file
- VM process
svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s W32Time - VM host
8.8.8.8
Files this sample writes at runtime
This file drops 9 children at runtime. None are currently flagged malicious in our cache. 9 have no saved verdict and were not checked; that is missing coverage, not a finding.
- 3be05b3e69d1b36e3a1e…ada510Not checkedno saved verdict
- 2475272f129a0b36bd9b…61dce8Not checkedno saved verdict
- e9419f6d87e8205c8397…c42eb0Not checkedno saved verdict
- 41777e1e10bae7763ceb…ae8f77Not checkedno saved verdict
- ce7cee34364a43a7b0ec…5f04afNot checkedno saved verdict
- a865bfc17913dacddfae…50e960Not checkedno saved verdict
- 364c39cb89e2fcaa06aa…f9948aNot checkedno saved verdict
- dbd3a49d0d906b4ed921…17151cNot checkedno saved verdict
- 6c8437d9c7ed0ddda1e4…301c0cNot checkedno saved verdict
Chapter 04
Technical details
None of the 70 antivirus engines that checked it flag it; no publisher signature.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 partial. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Aug 22, 2026, 5:09 PM UTC
- SHA-256
7b94de8df91be707e5f14d6f0348af435c4ad5ec3cf294e666411ae73837c35d- SHA-1
5713b416b82e995a0b02f499259f8052b75483fa- MD5
2c8a3243867a7877a20c52d12aa6be4c
About this file
CrystalLauncherInstaller.NX.exe is a Win32 EXE file of 1.6 MB.
- Type and size
- Win32 EXE · 1.6 MB
- Signer
- UnsignedNo code signature.
- First seen
- Jan 13, 2026On VirusTotal.
- Submitted by
- 1,313 distinct sources
- Packer
- None detected
- Entropy
- 4.55 of 8
First scanned
Antivirus consensus
0 of 70 engines flagged this file
5 of the 75 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
- Tier-117 engines0flagged
- Tier-236 engines0flagged
- Low-trust17 engines0flagged
View all 75 engine results
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXClean
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- AviraClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctClean
- DrWebClean
- ElasticClean
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusNo result
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- NANO-AntivirusClean
- PaloaltoClean
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisClean
- TencentClean
- TrapmineClean
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootClean
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
Signatures and behavior heuristics
Low-severity pattern matches — worth noting but not on their own cause for alarm.
VirusTotal's sandbox summary maps this run to MITRE T1055 (Process Injection), but no injected process of the sample's own was recorded (the analysis VM's own WMI adapter, crash handlers and Chrome updater are not counted). VirusTotal maps T1055 on about half of all files no engine flags, so the mapping alone is not evidence of injection.
EvidenceT1055 (sandbox MITRE mapping)
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Chapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is CrystalLauncherInstaller.NX.exe safe?
What is CrystalLauncherInstaller.NX.exe?
How many antivirus engines detected CrystalLauncherInstaller.NX.exe?
What is the SHA-256 hash of CrystalLauncherInstaller.NX.exe?
Is it safe to run CrystalLauncherInstaller.NX.exe?
How up to date is this analysis of CrystalLauncherInstaller.NX.exe?
Community
Member reviews and reports for this exact file hash.