File scan report
Verdict Safe
Is Krypton
Zero detections across 75 engines and no sandbox verdict despite three MITRE techniques.
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
The evidence supports treating the file as clean; continue normal security practices.
Good practice2 tips
We found nothing harmful in this file.
Run it only if it came from the project's own website.
Keep your security software and system 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 65 flagged
- Flagged 0
- No detection 65
- No result 10
- Code signing Not applicable
- Test run Completed
- First seen 2mo ago
Chapter 02
Why we think so
1 point against it and 4 in its favour, checked against the scan evidence.
The reasoning behind this verdict
The file triggered no antivirus detections and no sandbox verdict. Three MITRE techniques were observed but the sandbox did not classify the behaviour as malicious.
All 65 antivirus engines that checked it returned clean results, including 16 major antivirus engines. The single sandbox run produced no malicious verdict despite mapping three MITRE techniques. Nine files it created were inspected and none flagged malicious. The file is widely seen but new with 155 submitters and no external-intel hits.
What We Detected
Zero malicious detections from 75 engines.
Threat Behavior
Evidence from the test run shows Java execution and temporary file writes typical of legitimate JAR utilities. no complete contacted-host reputation result was available contacts or dropped malicious files it created were found.
What To Do Now
Keep security software enabled. The file can be executed if its source is trusted, but monitor for unexpected behaviour.
Where this verdict could be wrong1 caveat
- The sandbox's offensive-technique list include T1055, T1543.002, T1562.001 — three MITRE techniques that malware commonly uses, though sandbox verdict remains clean.
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
- No sandbox malicious verdict
- No malicious files it created
- Widely submitted (widely seen but new)
- Three MITRE techniques mapped by sandbox
6 sources checked · 5 complete · 1 not needed or not applicable. 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- 15sandbox rule tags
- 3spawned processes
- 0network contacts
- 15filesystem & 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
15MITRE ATT&CK techniques the sandbox mapped. Highlighted ones are rare in normal software; the others are common in legitimate programs too.
- T1055· Process injection
- T1059· Runs commands
- T1064
- T1074
- T1082· System recon
- T1105· Network file transfer
- T1106
- T1129· Loads modules
- T1202
- T1518.001· Checks your AV
- T1543.002· Service install
- T1562.001· Disables security
- T1564· Hides artifacts
- T1564.001· Hides artifacts
- T1564.003· Hides artifacts
Observed activity
Processes started
3Programs the file ran, with their command lines.
javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\<USER>\Desktop\runtime.jar"cmd.exeC:\Windows\SysWOW64\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Program Files\Java\jre1.8.0_441\bin\java.exe" -javaagent:"C:\Users\user\AppData\Local\Temp\jartracer.jar" -jar "C:\Users\user\Desktop\download.jar"" >> C:\cmdlinestart.log 2>&1java.exe"C:\Program Files\Java\jre1.8.0_441\bin\java.exe" -javaagent:"C:\Users\user\AppData\Local\Temp\jartracer.jar" -jar "C:\Users\user\Desktop\download.jar"
Files
15Files the file created, changed or deleted.
- Written
C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\4888 - Written
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp - Written
C:\ProgramData\Oracle\Java\.oracle_jre_usage\17dfc292991c8786.timestamp - Written
C:\Users\user\AppData\Local\Temp\hsperfdata_user - Written
C:\Users\user\AppData\Local\Temp\hsperfdata_user\7008 - Written
C:\cmdlinestart.log
Show all 15 entries for files
- Written
\Device\ConDrv\\Connect - Written
/proc/3564/coredump_filter - Written
/tmp/hsperfdata_root/3564 - Written
/var/log/auth.log.1.gz - Written
/var/log/dpkg.log.1.gz - Written
/var/log/kern.log.1.gz - Written
/var/log/syslog.1.gz - Deleted
C:\Users\user\AppData\Local\Temp\hsperfdata_user\1028 - Deleted
/tmp/hsperfdata_root/3564
Sandbox background — not the file
12The analysis machine's own processes and connections, recorded in every run.
- VM process
icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M - VM process
conhost.exeC:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 - VM process
gzip/bin/gzip - VM process
sh/bin/sh sh -c "\n\t\tinvoke-rc.d --quiet cups restart > /dev/null\n" logrotate_script "/var/log/cups/*log " - VM process
invoke-rc.d/usr/sbin/invoke-rc.d invoke-rc.d --quiet cups restart - VM process
runlevel/sbin/runlevel
Show all 12 entries for sandbox background — not the file
- VM process
systemctl/usr/bin/systemctl systemctl --quiet is-enabled cups.service - VM process
ls/usr/bin/ls ls /etc/rc[S2345].d/S[0-9][0-9]cups - VM process
systemctl/usr/bin/systemctl systemctl --quiet is-active cups.service - VM process
sh/bin/sh sh -c /usr/lib/rsyslog/rsyslog-rotate logrotate_script /var/log/syslog - VM process
rsyslog-rotate/usr/lib/rsyslog/rsyslog-rotate - VM process
systemctl/usr/bin/systemctl systemctl kill -s HUP rsyslog.service
Files this sample writes at runtime
This file drops 3 children at runtime. None are currently flagged malicious in our cache. 3 have no saved verdict and were not checked; that is missing coverage, not a finding.
- 4a2f8e9e20f33990a3be…586176Not checkedno saved verdict
- bc957005a859bf328f8a…b9f444Not checkedno saved verdict
- 4a865b7ec246edb0549d…a5d8e5Not checkedno saved verdict
Chapter 04
Technical details
None of the 65 antivirus engines that checked it flag it.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- Last analyzed
- Aug 27, 2026, 5:11 PM UTC
- SHA-256
bfda535b81bf916adfbb2696ebe60a81423221ec65e75e894d15b28437dd4c00- SHA-1
f4cb43fd6a1e1cee05c089b24565cddc78a70356- MD5
47d44eabdd354dfd3958921a6c6d42c8
About this file
KryptonAvengersAddon.jar is a JAR file of 1.0 MB.
- Type and size
- JAR · 1.0 MB
- Signer
- Not applicable
- First seen
- Aug 5, 2026On VirusTotal.
- Submitted by
- 155 distinct sources
First scanned
Antivirus consensus
0 of 65 engines flagged this file
10 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-235 engines0flagged
- Low-trust13 engines0flagged
View all 75 engine results
- AcronisClean
- AhnLab-V3Clean
- AlibabaClean
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXNo result
- ArcabitClean
- AvastClean
- Avast-MobileClean
- AVGClean
- AviraClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceNo result
- CynetClean
- DeepInstinctNo result
- DrWebClean
- ElasticNo result
- 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
- PaloaltoNo result
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisNo result
- TencentClean
- TrapmineNo result
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookClean
- 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)
How widely this file has been seen
Widely uploaded, but first seen within the last six months. No strong prior applies.
Chapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is KryptonAvengersAddon.jar safe?
What is KryptonAvengersAddon.jar?
How many antivirus engines detected KryptonAvengersAddon.jar?
What is the SHA-256 hash of KryptonAvengersAddon.jar?
Is it safe to open or run KryptonAvengersAddon.jar?
How up to date is this analysis of KryptonAvengersAddon.jar?
Community
Member reviews and reports for this exact file hash.