Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 469a999081f85b62…

MALICIOUS

RTF / .DOC

167.2 KB
MD5: 654f412f1aa61d7923a028d6fe44271d SHA-1: 20b4865d0acabc42bc9b7bb5c85828a95ec16788 SHA-256: 469a999081f85b628a17c458feaa87c21afa26376275c374551917bb50b0bb95
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains an embedded OLE object, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be activated automatically, likely to exploit a vulnerability. The extracted artifact 'objdata_00_off0000005b.bin' is the payload of this exploit. No document body text or scripts were available for further analysis.

Heuristics 3

  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000005b.bin
0d9fa266a1a9929c06e6dae72f2686a1b9ab2ff1dc7d261c3909272842d701ac
rtf-objdata-decoded RTF \objdata at offset 0x5B 85456 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.