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

Static analysis result for SHA-256 8c38994839bce6a9…

MALICIOUS

Office (OLE) / .DOC

63.9 KB Created: 2006-01-25 08:30:00 Authoring application: Microsoft Office Word
MD5: 18accbb59aeb298735ab28cddd947f25 SHA-1: 58543a6958f8c86833d6d5874f793ffea73b60a9 SHA-256: 8c38994839bce6a92b5f6ae903f20a42f98567f6b228d919627bbb33cdff82d1
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The sample is a malicious OLE document that contains a large slack space anomaly. A high-severity heuristic indicates the use of the CreateProcess API, suggesting an attempt to launch an external process. No document body or script content was available for further analysis, limiting the ability to determine the exact payload or delivery mechanism.

Heuristics 2

  • 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 65,440 bytes but its declared streams total only 21,151 bytes — 44,289 bytes (68%) 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).

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