Is BlueStacksInstaller.exe safe?
No antivirus engine detected the signed Now.gg installer, while broad prevalence and two signer-matched prior samples outweigh unconfirmed sandbox heuristics.
All 74 antivirus engines were non-detecting, including 17 tier-1 engines, and the installer carries a verified Now.gg signature. Its broad distribution and two signer-matched prior samples support legitimate commodity software, although process-injection and LSASS-related sandbox indicators justify obtaining it only from the official release channel.
267737b6425f3a473e…9033fd31d5c145Recommended next actions
Before running
Run it only when it came from the developer's official site or another source you independently trust.
If you already ran it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
All 74 antivirus engines were non-detecting, including 17 tier-1 engines, and the installer carries a verified Now.gg signature. Its broad distribution and two signer-matched prior samples support legitimate commodity software, although process-injection and LSASS-related sandbox indicators justify obtaining it only from the official release channel.
The sample received no malicious or suspicious detections from 74 antivirus engines, with all 17 tier-1 participants reporting no detection. Its verified Now.gg signature, 3,199 submissions from 2,560 sources, and two signer-matched prior installer samples support a legitimate commercial distribution pattern. One completed sandbox run produced no malicious verdict, and none of the ten inspected dropped children was identified as malicious. However, runtime mappings included T1055 and LSASS-related activity, which are meaningful counter-signals rather than proof of hostile intent. Host-reputation coverage was incomplete because only one host was inspected despite several observed IP and URL contacts. On balance, the independent reputation, prevalence, signing, and similarity evidence substantially outweighs the unconfirmed behavioral heuristics.
What We Detected
No malicious or suspicious result was reported by any of the 74 antivirus engines. The executable is signed with a verified certificate for Now.gg, and 17 tier-1 engines reported no detection. It is also broadly distributed, with 3,199 submissions from 2,560 sources, while two prior BlueStacksInstaller.exe samples sharing both the imphash and signer received favorable assessments.
Threat Behavior
One sandbox run recorded mappings to T1055, T1485, T1486, and T1543, including a heuristic association with LSASS activity. These are notable indicators, but the sandbox did not issue a malicious verdict and the saved evidence does not establish an injection method, credential theft, or destructive action. Ten dropped children were inspected without a malicious child finding, although their individual verdicts remain unknown. Several IP contacts and one URL were observed, but only one host received a saved reputation check, so a complete network-reputation result is unavailable.
What To Do Now
Use the installer only if it came directly from the official BlueStacks or Now.gg release channel, and verify that Windows still reports the Now.gg signature as valid. Keep endpoint protection enabled and avoid running copies obtained through advertisements, mirrors, or unsolicited links.
Where this verdict could be wrong4 caveats
- MalwareTips.Synth.ProcessInjection fired on T1055, and MalwareTips.Synth.CredentialDumper associated activity with lsass.exe; these runtime indicators warrant caution despite the absence of a malicious sandbox verdict.
- MalwareTips.Synth.DirectIpC2 reported direct connections to multiple IP addresses, while contactedHosts.inspected=1 provides incomplete reputation coverage for the observed contacts.
- signing.signerStats.totalSamples=2 and autoTrusted=false, so the verified Now.gg signature has only a short local history.
- The 10 dropped children have unknown individual verdicts even though droppedChildren.hasMaliciousChild=false.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 0/74 engines reported a malicious or suspicious detection.
- All 17 tier-1 engines reported no detection.
- The code signature for Now.gg is verified.
- The file has 3,199 submissions from 2,560 sources.
- Two signer-matched imphash samples previously received safe verdicts.
- Sandbox evidence mapped activity to T1055 process injection.
- A heuristic associated process activity with lsass.exe.
- Direct-IP network traffic was observed.
- Host-reputation coverage was incomplete for the observed contacts.
- The local Now.gg signer history contains only two prior samples.
- Ten dropped children lack individual verdicts.
Download this installer only from the official BlueStacks or Now.gg channel and confirm the Now.gg signature before execution. Keep antivirus and endpoint protection enabled.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 74 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial1 of 10 contacted hosts were cross-checked; coverage is incomplete.
YARA
Complete3 signature or behavior rules matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 25MITRE ATT&CK techniques
- 15spawned processes
- 10network contacts
- 33filesystem & mutex artifacts
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
BlueStacksInstaller.exe
267737b6425f3a473e11b6051f2a95ddab5f8f6d2e6aebd2ff9033fd31d5c145
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\1cea3bcca0e342_MzsxNQ___VHJhaWxzIG9mIENvbGQgU3RlZWw6Tlc_.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\BlueStacksInstaller.exe"
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
Assets
C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets
04Isolated runtime analysis - Written fileObserved
Locales
C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Locales
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
34.160.86.181
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
8.8.8.8
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- 34.160.86.181
- 8.8.8.8
- 23.218.218.18
- 23.11.32.159
- 23.53.11.240
- 23.54.127.41
- 162.159.142.9
- 199.232.214.172
- 162.159.36.2
- https://cloud.bluestacks.com/api/getcountryforip
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Locales
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\OpenClaw
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\backicon.png
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\change.png
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\backicon.png
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\change.png
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\change_click.png
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\change_hover.png
- C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets\checked_gray.png
- Local\WERReportingForProcess1020
- Global\70a398c8-7aa7-4ca8-b9f2-248d2505fe83
- Global\BlueStacks_MicroInstaller_Locknxt
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- abe3ee8bd8aef53d4f9b…e8b1faNever scannednever seen before
- 5f97cf2518d3c61f536e…ebd924Never scannednever seen before
- fa64884054171515e97b…9cb1c1Never scannednever seen before
- 8e5847487da148ebb3ea…4e6dc1Never scannednever seen before
- d8e502fab00b0c6f06ba…229ad3Never scannednever seen before
- d7c79677d2ef897fa0ad…165c20Never scannednever seen before
- d0b6d143642d356b40c4…b09bfbNever scannednever seen before
- d5a7e6fc5e92e0b29a4f…2ce0cdNever scannednever seen before
- 7c625ae4668cc03e37e4…8acdd0Never scannednever seen before
- fbece8bb5f4dfa55dcfb…e68f7bNever scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 3rule hits recorded
- 0 / 74engines flagged
- 2,560sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 74 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The file has a valid code signature from Now.gg.
ProvenanceObservedSourceCode-signing metadataObserved at - 03
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 04
Scanned file: BlueStacksInstaller.exe — 267737b6425f3a473e11b6051f2a95ddab5f8f6d2e6aebd2ff9033fd31d5c145
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\1cea3bcca0e342_MzsxNQ___VHJhaWxzIG9mIENvbGQgU3RlZWw6Tlc_.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\BlueStacksInstaller.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: Assets — C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Assets
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: Locales — C:\Users\<USER>\AppData\Local\Temp\7zS467A59F0\Locales
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 34.160.86.181 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 8.8.8.8 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
The saved runtime evidence maps this activity to MITRE T1055 (Process Injection). The mapping supports possible process injection, but it does not prove the exact injection method or the operator's intent.
EvidenceC:\Windows\system32\svchost.exe -k UnistackSvcGroupSandbox observed process activity targeting LSASS (Windows credential store). Legitimate software has no business reading LSASS memory — this is Mimikatz-shape behaviour.
EvidenceC:\Windows\system32\lsass.exeThe sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence34.160.86.181 · 23.218.218.18 · 23.11.32.159
0 of 74 engines flagged this file
View all 74 engine results
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
Lots of people are uploading this but it's recent — typical of newly-released legitimate software. Low prior for malware.
Fingerprint and provenance
- File name
- BlueStacksInstaller.exe
- Format
- Win32 EXE
- Code signing
- Signature valid: Now.gg
- Size
- 931.5 KB
- Last analyzed
- Sep 19, 2026, 7:53 PM UTC
267737b6425f3a473e11b6051f2a95ddab5f8f6d2e6aebd2ff9033fd31d5c145Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Run it only when it came from the developer's official site or another source you independently trust.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is BlueStacksInstaller.exe safe?
What is BlueStacksInstaller.exe?
How many antivirus engines detected BlueStacksInstaller.exe?
Is BlueStacksInstaller.exe digitally signed?
What is the SHA-256 hash of BlueStacksInstaller.exe?
Is it safe to run BlueStacksInstaller.exe?
How up to date is this analysis of BlueStacksInstaller.exe?
Community
Member reviews and reports for this exact file hash.