Suspicious
New signed executable with one low-trust detection, process-injection heuristics, and direct-IP contact but clean tier-1 consensus.
2bbfa21cba3d69207a…93d570e918The verdict, reasoned out.
Not a rules engine. The MT AI Engine reads every signal we collected, weighs them against history, and commits to an answer.
Engine coverage is strong (62 reporting) but the sole malicious result is low-trust with no family consensus, which normally indicates a false positive. Signing exists but carries no trusted-publisher or historical backing. Sandbox behaviour includes two offensive techniques and direct-IP contact without DNS, yet no sandbox flagged it malicious and dropped children are clean. The combination of new age, medium prevalence, and heuristic triggers without corroboration places the file in the suspicious category rather than safe or malicious.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
onlyLowTrustFlagging: true with 1/62 reporting engines (Trapmine)
offensiveTechniques: T1055, T1562.001 observed in sandbox
signing.signer: 'Arnis' with no history or trustedPublisher match
contactedIps: ['162.159.36.2'] and zero domains
prevalence.classification: medium with 9 submitters
- Tier-1 engines all clean or timeout
- No malicious sandbox verdict
- No malicious dropped children
- Medium prevalence across 9 sources
- Process injection (T1055) observed
- Direct IP contact without domains
- Zero-day file (0 days old)
- Invalid signature tag present
Treat as suspicious; do not run on sensitive systems. Monitor for additional detections and consider submitting to our research team for deeper analysis.
1 contradiction resolved by the scoring engine
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.
- 162.159.36.2
- \Device\ConDrv\Connect
- C:\Users\<USER>\AppData\Local\com.louisdev.arnis\logs\arnis.log
- C:\Users\user\AppData\Local\com.louisdev.arnis
- C:\Users\user\AppData\Local\com.louisdev.arnis\EBWebView
- C:\Users\user\AppData\Local\com.louisdev.arnis\EBWebView\BrowserMetrics
- \Sessions\1\BaseNamedObjects\DBWinMutex
- \Sessions\1\BaseNamedObjects\Local\ChromeProcessSingletonStartup!
- \Sessions\1\BaseNamedObjects\__OMADM_NAMED_MUTEX__
Files this sample writes at runtime
This file drops 2 children at runtime. None are currently flagged malicious in our cache.
- 41c91a9c93d76295746a…1cc304Never scannednever seen before
- f7b24f2eb3d5eb055052…8b5fedNever scannednever seen before
YARA + heuristic rules that fired
A researcher-curated or high-severity heuristic rule matched this sample. These rules target specific malware families and are near-definitive.
MITRE T1055 (Process Injection) observed — CreateRemoteThread / APC / reflective-DLL injection. The payload is being smuggled into a legitimate process to bypass AV hooks.
Evidence"C:\Users\<USER>\Desktop\arnis-windows.exe"Sample contacted 1 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.
Evidence162.159.36.2
1 detection across 75 engines
Section entropy & packers
Section-level entropy and packer detection from the PE header. Nothing suspicious here — entropy is within the normal range for unpacked code.
How often this file shows up in the wild
Moderate prevalence — neither rare nor common. No strong prior applies.
Forensic fingerprint
- File name
- arnis-windows.exe
- Size
- 39.32 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- 2bbfa21cba3d69207a26a39350fd9fd74b8d4562f422fc4dd977d993d570e918
- MD5
- 432ab0e0ba35ca6f5fd2dac727723c76
- SHA-1
- 4ece579f88802d468ffe8dff1f588cf140b5f968
- PE imphash
- 72111a4a13338dae0f61b5c2451f1c99
- First seen (VT)
- 5/19/2026, 2:02:00 PM
- Last analysis (VT)
- 5/19/2026, 2:02:00 PM
- First scan (MalwareTips)
- 5/19/2026, 5:07:11 PM
- Last scan (MalwareTips)
- 5/19/2026, 5:07:10 PM
- Code signer
- Arnisinvalid
Reviews & malware reports(0)
Tell the community what you saw. Tag the sample — Trojan, Adware, False Positive — and share what the file did on your system. Your report helps confirm or dispute the AV verdict.