Suspicious
Unsigned Android APK with one tier-1 RiskTool label, direct-IP contact pattern, and obfuscation tags.
59e4739bb16c1707ea…047662e39eThe reasoning behind this verdict
The MT AI Engine weighs every signal from this scan — antivirus detections, sandbox behaviour, code signing, prevalence and historical matches — to reach a single, evidence-based verdict.
The single tier-1 detection names a RiskTool rather than a clear malware family, and the remaining two detections are lower-tier. Direct-IP communication without DNS is flagged by our heuristic as suspicious, yet no sandbox malicious verdict, no malicious children, and no external-intel hits exist. The file is unsigned with medium prevalence, leaving the overall picture borderline between a potentially unwanted VPN tool and something more covert.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
engines.tier1Malicious=1 (Kaspersky 'not-a-virus:HEUR:RiskTool.AndroidOS.Revpn.ae')
triggeredHeuristics[0].rule='MalwareTips.Synth.DirectIpC2' fired with 15 contacted IPs and zero domains
file.tags=['obfuscated','reflection','contains-elf','checks-gps']
signing.signed=false with no signerStats history
prevalence.classification='medium' (31 uniqueSources)
- Only one tier-1 engine flagged
- No malicious sandbox verdicts
- No malicious dropped children
- Medium prevalence with no external-intel hits
- Unsigned APK
- Direct IP contacts without DNS
- Obfuscated code and reflection
- Single tier-1 RiskTool detection
Treat as suspicious riskware; avoid installation until a signed, verified source is confirmed or further dynamic analysis clears the direct-IP behaviour.
What this file does
What it attempted when executed in an isolated sandbox
Moderate concern: Connects out to 15 servers on the internet.
Translated from the file's technical behaviour during analysis. It never ran on your device.
What to do now
We couldn't fully clear this file. Treat it with caution.
Don't run it unless you're certain it came from a source you trust.
Check where you got it — an email attachment or a random download link is a red flag.
If you're unsure, delete it. You can always re-download a clean copy from the official source.
If you're still unsure, scan it again in a day or two — detections often catch up on newer files.
revpn corroborated by 2 sources
- VT (76 engines)revpn
- MT AI Enginerevpn
Files this sample writes at runtime
This file drops 4 children at runtime. None are currently flagged malicious in our cache.
- a2fa62f7cfbef313e340…e90167Never scannednever seen before
- 10f300c49bea26dd02e7…dc052aNever scannednever seen before
- 61a0d0cca6eda24cd00a…4b4460Never scannednever seen before
- 351ba4634d2f53905dd8…a670ccNever scannednever seen before
YARA & heuristic rule matches
One or more medium-severity heuristic rules matched. Not definitive, but the patterns match known malware behaviour.
Sample contacted 15 external IP address(es) and zero domains. Benign software virtually always uses DNS; no-DNS direct-IP C2 is a strong malware indicator because it bypasses reputation systems and dodges domain-based blocklists.
Evidence212.227.214.107 · 142.251.111.94 · 172.67.151.52
3 detections across 76 engines
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Forensic fingerprint
- File name
- release.apk
- Size
- 12.27 MB
- MIME type
- (unknown)
- Detected type
- Android
- SHA-256
- 59e4739bb16c1707eae76664df78621e99f84558169d541e0c19c1047662e39e
- MD5
- 6da761e8c494a9dbb3a22ed327b3da1d
- SHA-1
- d55fca2cf804429932c3c5905a9157072e780eb0
- First seen (VT)
- 11/6/2025, 9:19:14 AM
- Last analysis (VT)
- 4/4/2026, 8:28:56 PM
- First scan (MalwareTips)
- 7/18/2026, 9:23:25 PM
- Last scan (MalwareTips)
- 7/18/2026, 9:23:25 PM
Safety FAQ
Common questions about release.apk, answered from the scan data above.
- release.apk is suspicious — treat it as unsafe until you're sure. 3 of 76 antivirus engines flag it (family: revpn), which isn't a strong consensus but is enough to be cautious. Don't installed it unless you fully trust where it came from, and prefer downloading the software fresh from its official site.
- release.apk is an Android app (APK), about 12.3 MB. We identify a file by its cryptographic hash rather than its name, because the same filename can be reused by completely different files — the hash below is the reliable fingerprint.
- 3 of 76 antivirus engines flagged release.apk, 3 of them as outright malicious. A small number of detections can include false positives, so we weigh which engines flagged it and what else the file does, not just the raw count.
- Act quickly. 1) Disconnect the device from the internet to stop the malware communicating or spreading. 2) Run a full scan with reputable anti-malware software (such as Malwarebytes) and quarantine everything it finds. 3) Change your important passwords from a DIFFERENT, clean device — many threats log keystrokes or steal saved credentials. 4) If you bank or shop on this device, watch closely for fraud and alert your bank. 5) For a confirmed infection, the most reliable fix is to back up your personal files and reinstall the operating system for a clean start.
- To remove release.apk: 1) restart into Safe Mode (Safe Mode with Networking if you need to download a tool) so the malware doesn't auto-start. 2) Run a full scan with reputable anti-malware software and let it quarantine or delete the detections. 3) Delete the original release.apk file and empty the Recycle Bin/Trash. 4) Check your browser extensions, startup items, and scheduled tasks for anything unfamiliar. 5) Reboot and scan again to confirm it's gone. If detections keep coming back, a clean operating-system reinstall is the most dependable cure.
- release.apk is classified as adware or a potentially unwanted program (PUA) — not always destructive, but it bundles ads, trackers, or unwanted changes you didn't ask for. Engines attribute it to the revpn family. Knowing the family matters because it tells you the likely impact — data theft, remote control, file encryption, or unwanted ads — and guides the cleanup.
- The SHA-256 hash of release.apk is 59e4739bb16c1707eae76664df78621e99f84558169d541e0c19c1047662e39e, and its MD5 is 6da761e8c494a9dbb3a22ed327b3da1d. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
- This report reflects the scan run on July 18, 2026. Because a file's hash never changes, the identity of release.apk is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Reviews & malware reports(0)
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