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

Static analysis result for SHA-256 d41be00b9163284d…

MALICIOUS

Office (OLE) / .DOC

129.2 KB
MD5: bf6ddeff0a3c44f219e646d9df257228 SHA-1: b8ea6784d287e492973a9027b9dd4d88cf350397 SHA-256: d41be00b9163284ddc1862dfc98c062a5e24195f4db5478a016c0f651010b58a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The sample is a malicious OLE document exhibiting a large slack space anomaly and references to LoadLibrary and GetProcAddress APIs, suggesting shellcode execution. While the document body is nonsensical, the presence of these indicators points towards a downloader or exploit. No scripts were extracted, and the embedded URL is benign, limiting further analysis.

Heuristics 5

  • NOP sled detected high SC_NOP_SLED
    Found 20+ consecutive 0x90 bytes
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 132,347 bytes but its declared streams total only 31,351 bytes — 100,996 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).
  • 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