Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 3fa75ce52fbf11f7…

MALICIOUS

Office (OLE)

17.0 KB First seen: 2012-06-14
MD5: 7a30316f296f932aacb2d95ee684938c SHA-1: 82dc1ece7094a6142e35254eb09d895fae838650 SHA-256: 3fa75ce52fbf11f72464b577949cc99e35e751e7e5ac0252bbef345842a96d6a
80 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The analysis identified embedded OLE objects with critical static findings related to OLE directory cycles and FAT chain loops. These anomalies suggest the file structure may be intentionally corrupted or manipulated to evade detection. The presence of these indicators points towards a potential attempt to hide or execute malicious code within the compound document.

Heuristics 2

  • Embedded Office document has suspicious static findings critical EMBEDDED_OFFICE_CHILD_STATIC_TRIAGE
    A CFB/OLE Office document was found inside another file type and its carved contents matched Office exploit or payload heuristics. This catches wrapped exploit documents where the top-level file routes to a PE, archive, or generic scanner instead of Office.
  • CFB header with no readable streams medium OLE_PARSE_EMPTY_STREAMS
    The file begins with a valid OLE2/CFB header but exposes no directory streams. A non-empty compound document with an unreadable directory is anomalous — it is seen with truncated/corrupt files and, more importantly, with content deliberately shifted off byte boundaries to defeat parsers while the host application still recovers the object.

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_office_off00002afc.ole embedded-office Embedded OLE/CFB Office body inside ole container at offset 0x2AFC 6404 bytes
SHA-256: 3c0226d1a9a94b88bbfd1010fa98adc932d712873561a87c0dbe63f03dfa4a33
embedded_office_off00003355.ole embedded-office Embedded OLE/CFB Office body inside ole container at offset 0x3355 4267 bytes
SHA-256: f19197356025ef4fb5daf6024705779accc9bfba23a7f5df2a97d8951ed7c5a8