MALICIOUS — virussign.com_6cd91fb569886fee161624a9f1d98900.vir
MALICIOUS — virussign.com_6cd91fb569886fee161624a9f1d98900.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the ShellHook family. 7 of 51 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
7bb702da96df7c454a42fc76f760f7692a9ddfe60d7e55555a42642d77cd4674 - SHA-1:
99d2286677f81f392d49b3265963108b4f7bf69b - MD5:
6cd91fb569886fee161624a9f1d98900 - imphash:
f0686191b2a23d7883c0044f89189c81 - ssdeep:
6144:fjYD4PawAJ1VI2sa7Hy1T/h9JmQDao6dH:fZaXrsCSl/HJmQiH - TLSH:
T11442E02A7105A986E773CA665DA51F0C46B752B2C0BE088C8187C11D26F7DBBE71C0DE - Submitted as: virussign.com_6cd91fb569886fee161624a9f1d98900.vir
- File type: pe · Size: 202752 bytes
- Verdict: malicious (100/100) · Family: ShellHook
Source: VirusSign · first seen 2026-07-28T00:00:00.000Z · SHA-256 verified
Detections (7 of 51 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Zusy-9654284-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
- Kaspersky (KVRT): Worm.Win32.Wenper.b
- Microsoft Defender: Backdoor:Win32/Gobot!pz
- Emsisoft (Emergency Kit): Gen:Trojan.ShellHook.mqZ@amCGWLe
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9654284-0 (rule
Win.Malware.Zusy-9654284-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload (Zusy): 5f29ae338a9e9660854d049b0cd875e983133f14b4f85ba0c2b6cbef7a3ae722 - dynamic signal, weight 0.80, confidence 0.90
- Memory forensics: 4 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 7688) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 38 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule
TL_Shellcode_VirtualAlloc_Exec) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
315 behavior events · 2 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- searchapp.bundleassets.example
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
- settings-win.data.microsoft.com
- assets.msn.com
- www.bing.com
- tas02.sls.update.microsoft.com
Dropped files
- /opt/CAPEv2/storage/analyses/27524/files/5f29ae338a9e9660854d049b0cd875e983133f14b4f85ba0c2b6cbef7a3ae722 -
5f29ae338a9e9660854d049b0cd875e983133f14b4f85ba0c2b6cbef7a3ae722 - /opt/CAPEv2/storage/analyses/27524/files/e633d3e15afa1aa9e7c7bc8301c3f1b17041eec6379fbb32b847e842712edd22 -
e633d3e15afa1aa9e7c7bc8301c3f1b17041eec6379fbb32b847e842712edd22 - /opt/CAPEv2/storage/analyses/27524/files/988823264aa0956473ed0d331d002295b14408ef2911758346d5ca1ec68dc3be -
988823264aa0956473ed0d331d002295b14408ef2911758346d5ca1ec68dc3be - /opt/CAPEv2/storage/analyses/27524/files/ce35f0d2141103850c7ab353c87515943d887aa58af47aafda9afe5cad59e3b1 -
ce35f0d2141103850c7ab353c87515943d887aa58af47aafda9afe5cad59e3b1
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Embedded domains
- 5o.hk
Embedded IP addresses
- 4.150.223.96
- 52.123.252.193
- 52.230.60.54
- 52.110.12.32
- 48.211.4.16
- 4.230.171.124
- 57.155.104.224
- 52.110.12.51
- 52.110.12.24
- 52.168.117.170
- 135.232.92.137
- 74.178.76.54
- 20.231.239.246
- 135.233.45.221
- 52.110.12.1
- 40.84.85.40
- 20.165.94.63
- 20.112.250.133
- 162.159.36.2
- 72.153.5.132
- 135.232.92.34
File paths
- C:\unm0ve.txt
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report