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

Static analysis result for SHA-256 9d55835bc0f732e9…

MALICIOUS

Office (OLE) / .DOC

128.6 KB Created: 2007-09-18 04:34:00 Authoring application: Microsoft Word 11.
MD5: bcaf8e37348a0559f0708052de290f0f SHA-1: 055f4e250148bdeef035bc2040d5931ad166f030 SHA-256: 9d55835bc0f732e942008d9f65070575509897c03f82259f2b9858bdbfe0c578
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The sample is a malicious OLE document with a significant amount of slack space, indicating potential obfuscation or embedded content. The presence of an embedded URL to 'http://www.tibetanwomen.org' suggests a delivery mechanism for a secondary payload. While no scripts were explicitly extracted, the PEB access heuristic and OLE slack anomaly point towards exploitation techniques commonly used to download and execute further malicious code.

Heuristics 3

  • PEB access via FS segment (x86) high SC_PEB_ACCESS
    PEB access via FS segment (x86)
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 131,636 bytes but its declared streams total only 16,486 bytes — 115,150 bytes (87%) 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.tibetanwomen.org
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/iX/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://schemas.openxmlformats.org/drawingml/2006/main

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