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

Static analysis result for SHA-256 34bd3ff5215079f8…

MALICIOUS

Office (OLE) / .DOC

175.0 KB Created: 2001-12-14 14:26:00 Authoring application: Microsoft Word 9.0
MD5: 94abcf2f8d026613c45d1c741b3a10a7 SHA-1: d5a7915218b274282d18c02f7137d3693976e041 SHA-256: 34bd3ff5215079f8289a1534087c986a89370300f81785500f949bdbdcc66c1e
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The sample is a malicious OLE document containing a macro that references the CreateProcess API, indicating an attempt to execute external code. The document body is heavily obfuscated and unreadable, providing no direct clues about its intent. The presence of the CreateProcess API call strongly suggests the macro is designed to download and execute a second-stage payload.

Heuristics 4

  • CVE-2006-6456 — Microsoft Word malformed table SPRM critical CVE exact CVE_2006_6456
    WordDocument contains a malformed table border-color SPRM in the CVE-2006-6456 shape: a valid table-SPRM cluster is followed by an invalid high-byte 0xFF SPRM where Word expects a normal sprmTBrc*Cv record. Vulnerable Word 2000/2002/2003 parsers corrupt memory while handling this malformed data structure.
  • Reference to CreateProcess API high SC_STR_CREATEPROCESS
    Reference to CreateProcess API
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 179,200 bytes but its declared streams total only 94,801 bytes — 84,399 bytes (47%) 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).
  • OLE file has appended executable-looking payload bytes high OLE_APPENDED_PAYLOAD
    OLE compound file contains a large high-entropy region beyond the declared major streams and that region includes shellcode, PE, or loader API markers. This is a payload-carrier signal, not a specific CVE attribution by itself.