Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 e8dbbf4be4be9a2c…

MALICIOUS

RTF / .DOC

161.9 KB
MD5: fbe06e2b569b9d3f71d4ae539312fa67 SHA-1: 6b59ddef9e32dbd55141a956432e02d15caf0c85 SHA-256: e8dbbf4be4be9a2ca5596eebdda4b63a5e914f27a5258b42bf5cbd355f01045a
129 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to automatically activate embedded objects. This is a common technique for delivering malicious payloads. The extracted artifact 'objdata_00_off00001530.bin' is likely the embedded malicious object. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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_off00001530.bin
651bc241d16261bb1c703899399617ccba2178ff3d231995bb655145f741351e
rtf-objdata-decoded RTF \objdata at offset 0x1530 64066 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.93, consistent with packed or encrypted content.