MALICIOUS — ba331f7245f7ac6a13470352739dcf95aaf2f2fdfcaddc83bd6110ea0f317e19

MALICIOUS — ba331f7245f7ac6a13470352739dcf95aaf2f2fdfcaddc83bd6110ea0f317e19 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Triusor family. 6 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.

Identification

• SHA-256: ba331f7245f7ac6a13470352739dcf95aaf2f2fdfcaddc83bd6110ea0f317e19
• SHA-1: 39ef7b5d564ffacd23ab6fa5759990c1e5440769
• MD5: 29f0b6919e7473b819d9d92b8ae3f686
• imphash: d41d8cd98f00b204e9800998ecf8427e
• ssdeep: 24576:w2cEtyzBXK8fa1nlLokqZe2ROf1IegqutJQ5FeQzcuC4r6HQ:2zBs1qkqE2RAR5FeA6w
• TLSH: T191567DCE420A3617D6FAC9246C2C9ADD44E270F9A43E7B9C5947D93E00D2533ADB8067
• Submitted as: ba331f7245f7ac6a13470352739dcf95aaf2f2fdfcaddc83bd6110ea0f317e19
• File type: pe · Size: 1342464 bytes
• Verdict: malicious (99/100) · Family: Triusor

Detections (6 of 55 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• capa (capabilities): capability:credential-access
• ClamAV (daily): Win.Virus.Triusor-6887833-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• YARA: Yara-Rules community: YR_AntiDebug_Checks

MITRE ATT&CK

• T1055
• T1555
• T1003
• T1057
• T1056.001

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 99/100 is the fusion of 9 weighted signals:

• ClamAV (daily) flagged Win.Virus.Triusor-6887833-0 (rule Win.Virus.Triusor-6887833-0) - engine signal, weight 0.90, confidence 0.95
• Process injection API combination (rule Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90
• access stored credentials (rule access stored credentials) - capa signal, weight 0.50, confidence 0.80
• capture keystrokes (rule capture keystrokes) - capa 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
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
• inject code into another process (rule inject code into another process) - capa signal, weight 0.12, confidence 0.60

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• http://www.microsoft.com/pki/certs/CSPCA.crt0
• http://www.microsoft.com/pki/certs/tspca.crt0
• http://schemas.microsoft.com/SMI/2005/WindowsSettings

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• schemas.microsoft.com

File paths

• d:\sp1.public.x86fre\internal\strongnamekeys\fake\windows.snk
• C:\Loggers\MyLogger.dll;OutputAsHTML
• C:\My.dll
• C:\Logger.dll
• f:\dd\tools\devdiv\FinalPublicKey.snk
• f:\dd\vsproject\xmake\XMakeCommandLine\objr\i386\MSBuild.pdb
• C:\Users\martin\27\python\PCbuild\python.pdb
• C:\cuckoo_%d.ini

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report