MALICIOUS — 855fba0c58789d39b0ff1f10ce2f57d985cace0a0c788215bd1207cbcbc09b03

MALICIOUS — 855fba0c58789d39b0ff1f10ce2f57d985cace0a0c788215bd1207cbcbc09b03 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Infostealer family. 4 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: 855fba0c58789d39b0ff1f10ce2f57d985cace0a0c788215bd1207cbcbc09b03
SHA-1: 33409b947766c9ffb7482d9a50d498ff67d9f521
MD5: d59c70da1ba3e07fb94cb55be12afb97
imphash: f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep: 192:QBksu/rN3y+iNeMZZ3c93VnjdwCz43hW6:nZkNeM4FnhwCs8
TLSH: T15A2219EF5B5C4F87CABAD52B2051CE3E9480B49D28B2224C01049B33187C833987E79B
Submitted as: 855fba0c58789d39b0ff1f10ce2f57d985cace0a0c788215bd1207cbcbc09b03
File type: pe · Size: 9728 bytes
Verdict: malicious (100/100) · Family: Infostealer

Detections (4 of 56 engines)

ClamAV (daily): Win.Malware.Msilkrypt-9839010-0
Microsoft Defender: PWS:MSIL/Infostealer.PAC!MTB
Emsisoft (Emergency Kit): Gen:Trojan.Mardom.PN.11
Kaspersky (KVRT): HEUR:Trojan.MSIL.Agent.gen

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

ClamAV (daily) flagged Win.Malware.Msilkrypt-9839010-0 (rule Win.Malware.Msilkrypt-9839010-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged PWS:MSIL/Infostealer.PAC!MTB (rule PWS:MSIL/Infostealer.PAC!MTB) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Trojan.Mardom.PN.11 (rule Gen:Trojan.Mardom.PN.11) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged HEUR:Trojan.MSIL.Agent.gen (rule HEUR:Trojan.MSIL.Agent.gen) - engine signal, weight 0.55, 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) across 1 rule(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 1 external host(s) and 4 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1082 - dynamic signal, weight 0.40, confidence 0.75
Extracted RedLine config (0 C2) - engine signal, weight 0.45, confidence 0.60
Embedded network infrastructure: http://tempuri.org/IUserService/GetUsersT, http://194.87.145.184:6484/UserService, 194.87.145.184 - static signal, weight 0.35, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Memory forensics: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. process hidden from a listing (rule windows.psxview.PsXView) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

4026 behavior events · 2 ATT&CK techniques · 0 dropped files.

Embedded URLs

http://tempuri.org/IUserService/GetUsersT
http://194.87.145.184:6484/UserService
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded domains

schemas.datacontract.org
tempuri.org

Embedded IP addresses

194.87.145.184
4.150.223.110
4.230.171.124
20.42.179.204
20.247.185.124
48.211.4.16
135.232.92.97
20.184.175.4
20.165.94.63
172.64.154.167
172.178.240.161
52.110.12.18
52.110.12.11

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report