Malicious
Unsigned trojan installer with tier-1 consensus, process injection, direct-IP C2, and consistent malicious RAG history.
4e44b01c1ff5617cc4…c5fe8c181cThe 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.
This unsigned Setup.exe exhibits strong malware indicators across multiple dimensions. Tier-1 consensus from 5 high-trust engines naming the Malgent family, combined with offensive MITRE techniques (process injection, process hollowing, service creation) and direct-IP C2 communication, establishes malicious intent. The file's imphash matches 3 prior MalwareTips verdicts of 'malicious' (pseb family, scores 18), indicating a known malware distribution pattern. The absence of a valid signature, combined with generic installer filename and long prevalence history (1050 submissions since 2021), is consistent with a widely-distributed trojan. Dropped children remain unanalysed, but the parent's own behaviour is independently damning.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
5/71 tier-1 engines malicious (Microsoft, Ikarus, Sophos, TrendMicro, TrendMicro-HouseCall); tier1FamilyConsensus.strong=true, family='win32'
Unsigned, no signer history; filename 'Setup.exe' with installerHint=true — generic trojan distribution vector
Behaviour: T1055 (process injection), T1134 (process hollowing), T1543.003 (service creation); contacted 15 external IPs, zero domains (direct-IP C2)
similarHashes: 3/4 prior imphash matches verdicted 'malicious' (pseb family, score 18 each); 1 'unknown' — consistent malicious history
triggeredHeuristics: MalwareTips.Synth.ProcessInjection (high) + MalwareTips.Synth.DirectIpC2 (medium) — both strong malware indicators
- No malicious sandbox verdict explicitly recorded (though behaviour analysis shows offensive techniques)
- Dropped children all have unknown verdict — not yet confirmed malicious
- No malicious contacted hosts in our URL cache (though direct-IP C2 bypasses domain reputation)
- Tier-1 consensus from 5 high-trust antivirus engines on Malgent family
- Process injection (T1055) and service creation (T1543.003) — offensive techniques used only by malware
- Direct-IP C2 communication to 15 external addresses, zero DNS queries — bypasses reputation systems
- Unsigned executable with no publisher history — no legitimate software provenance
- Generic 'Setup.exe' filename — common trojan distribution vector
- Imphash matches 3 prior malicious verdicts — known malware pattern
Block and quarantine this file immediately. Do not execute under any circumstances. If this file was downloaded or executed, perform a full system scan with updated antivirus software and monitor for signs of compromise (unexpected services, network connections, registry modifications).
malgent corroborated by 2 sources
- VT (75 engines)malgent
- MT AI Enginemalgent
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.
- 20.99.132.105
- 23.216.147.64
- a83f:8110:0:0:6076:c7a:e801:0
- 192.229.211.108
- 20.99.186.246
- 184.25.191.235
- 20.99.184.37
- 20.99.133.109
- 23.213.37.172
- 192.168.0.14
- C:\Documents and Settings\Administrator\Local Settings\Temp\is-PC6QI.tmp\996E.tmp
- C:\Documents and Settings\Administrator\Local Settings\Temp\is-OBRGJ.tmp\_isetup\_shfoldr.dll
- C:\Documents and Settings\Administrator\Local Settings\Temp\is-OBRGJ.tmp\ISDone.dll
- C:\Documents and Settings\Administrator\Local Settings\Temp\is-OBRGJ.tmp\botva2.dll
- C:\Documents and Settings\Administrator\Local Settings\Temp\is-OBRGJ.tmp\logo.png
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER1567.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER1578.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER1671.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER1672.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER16C2.tmp.txt
- Local\RstrMgr3887CAB8-533F-4C85-B0DC-3E5639F8D511
- Local\RstrMgr-3887CAB8-533F-4C85-B0DC-3E5639F8D511-Session0000
- CTF.LBES.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500
- CTF.Compart.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500
- CTF.Asm.MutexDefaultS-1-5-21-1482476501-1645522239-1417001333-500
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- bb22238b9de45d10013c…9b2fd7Never scannednever seen before
- 574067660e80ad070db9…069523Never scannednever seen before
- 1a72008c2393b330c3a9…226cedNever scannednever seen before
- 609661a14733f6e9c2c2…083d6aNever scannednever seen before
- 2e041b5013e4e6528f19…f5aa66Never scannednever seen before
- 43bfe50a575e87237abe…dfa527Never scannednever seen before
- 9884e9d1b4f8a873ccbd…360d87Never scannednever seen before
- d66bbf3a8d5f5890c3db…74889cNever scannednever seen before
- 9813c13b925ca95d4038…866847Never scannednever seen before
- 41f8b7bdf1200f9b13fe…14c1b0Never 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>\AppData\Local\Temp\program.exe"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.
Evidence20.99.132.105 · 23.216.147.64 · a83f:8110:0:0:6076:c7a:e801:0
11 detections 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
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Forensic fingerprint
- File name
- Setup.exe
- Size
- 7.08 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- 4e44b01c1ff5617cc46b57124da20c2705a7e432b04ef1ab64c038c5fe8c181c
- MD5
- 87f7d8681b4a769c2ae193d921ef94a2
- SHA-1
- bcb7773891ee2bb58046cc66a5022e6695f9720b
- PE imphash
- 483f0c4259a9148c34961abbda6146c1
- First seen (VT)
- 3/11/2021, 9:27:18 AM
- Last analysis (VT)
- 6/26/2026, 7:56:07 PM
- First scan (MalwareTips)
- 6/29/2026, 12:05:37 AM
- Last scan (MalwareTips)
- 6/29/2026, 12:05:37 AM
- Community reputation
- -55flagged
Reviews & malware reports(0)
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