Win.Trojan.Tristate-2 — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 357ff4b6800c7505…

MALICIOUS

Office (OLE) / .DOC

41.0 KB Created: 2005-12-28 12:12:00 Authoring application: Microsoft Office Word
MD5: 7ba788c0e5e908f1b3f39f29e45ff801 SHA-1: 045140b00d12c93ac3e07cdec5d651914fe5009f SHA-256: 357ff4b6800c7505ea1f0dc97b357ca9efc3c13be3c405608fbd3989bad717d6
260 Risk Score

Malware Insights

Win.Trojan.Tristate-2 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, including CreateObject and GetObject calls, which are often used to download and execute additional payloads. ClamAV detections for Win.Trojan.Tristate-2 and Doc.Trojan.Tristate-1 strongly indicate malicious intent. The document body, disguised as an administrative order, is a common social engineering tactic to trick users into enabling macros.

Heuristics 6

  • ClamAV: Win.Trojan.Tristate-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Tristate-2
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
09ac0e4717b599378299a27e1bf7a43c0525550c9f4b8d29e9e78c952309f9f4
vba-macro oletools.olevba.extract_macros (decoded VBA source) 8494 bytes
Detection
ClamAV: Doc.Trojan.Tristate-1
Obfuscation or payload: likely
Carved artifact contains 12 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.