Malicious Office (OLE) / .A — malware analysis report

Static analysis result for SHA-256 83308497d962bb0a…

MALICIOUS

Office (OLE) / .A

469.5 KB Created: 2000-10-07 04:17:00 Authoring application: Microsoft Word 9.0
MD5: b56ae000bd3f1f8ef22aab9023dafe1d SHA-1: dd45fbd5b067cc9d2fcb307b34cd5d5c7506914e SHA-256: 83308497d962bb0ade546c3e3f8d42b9858fd435a20b0f7f3ff59ead0f10df08
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The file is detected as Win.Trojan.Psycho-3 by ClamAV, indicating malicious intent. The presence of an embedded URL pointing to 'www.WalruS.8k.com' suggests a potential download or redirection to malicious content. The heuristic firing for 'SC_STR_WSCRIPT' indicates the use of Windows Script Host, often employed to execute downloaded payloads or scripts.

Heuristics 4

  • ClamAV: Win.Trojan.Psycho-3 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Psycho-3
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 480,768 bytes but its declared streams total only 16,490 bytes — 464,278 bytes (97%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.WalruS.8k.com�

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