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

Static analysis result for SHA-256 436dccfd36d864f7…

MALICIOUS

Office (OLE) / .DOC

128.4 KB
MD5: 012771d9f10b9b55411c7f2518352195 SHA-1: ffdcb888c103876f834021fe3bc543848d17e0d8 SHA-256: 436dccfd36d864f7da4500ada7cc4ee40b0ddf1196bf49c289176a53ddc6f766
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link

The OLE document exhibits a significant slack space anomaly, suggesting the presence of hidden or malicious content. The heuristic firing for VirtualAlloc API indicates potential memory allocation for malicious code execution. While the document body contains only test construction information, the combination of these factors points towards an exploit attempt within the Office document.

Heuristics 3

  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 131,440 bytes but its declared streams total only 31,351 bytes — 100,089 bytes (76%) 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).
  • Reference to VirtualAlloc API medium SC_STR_VIRTUALALLOC
    Reference to VirtualAlloc API
  • 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://schemas.openxmlformats.org/drawingml/2006/main