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

Static analysis result for SHA-256 c482ba5a00dd1207…

MALICIOUS

Office (OLE) / .DOC

200.8 KB
MD5: f3a2593456f663545b339a2723d3823a SHA-1: 4706c448e5b825a1242a663eabf1561cbb25fc8b SHA-256: c482ba5a00dd1207a2be4db3d8b41e4df9c9f1d7819f013e96c96df2adfa6999
180 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File Execution T1059.003 Windows Command Shell

The critical heuristic firing for CVE-2006-6456 indicates that this Microsoft Word document is designed to exploit a malformed table SPRM vulnerability. The suspicious cmd.exe invocation suggests that the exploit likely leads to the execution of a command-line payload. The PEB access heuristic further supports the execution of malicious code.

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.
  • PEB access via FS segment (x86) high SC_PEB_ACCESS
    PEB access via FS segment (x86)
  • Suspicious cmd.exe invocation with execution flag high SC_STR_CMD
    Suspicious cmd.exe invocation with execution flag
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 205,569 bytes but its declared streams total only 94,801 bytes — 110,768 bytes (54%) 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).