Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 fe9fe5b74f717cbf…

MALICIOUS

RTF / .DOC

508.5 KB
MD5: 645b9ead5f62a6a7ab7fbbd5931c7c6c SHA-1: 1c2016b51b095f54a2bfb0d8ae90cf1f2b5d2b0f SHA-256: fe9fe5b74f717cbf3e5e74ed81cc794b6868a0db0eb3be85689f41fc1e69c63a
129 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The file is an RTF document containing an embedded OLE object, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be activated automatically, which is a common technique for exploiting vulnerabilities. While the specific payload is not detailed, the presence of these indicators points to a malicious document designed to execute embedded code. No specific family could be identified.

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_off00000f2f.bin
97ed3e4860f184c7d6ed677afe1eb91e664039b11c60abd4b1cec975e1029e06
rtf-objdata-decoded RTF \objdata at offset 0xF2F 129087 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.97, consistent with packed or encrypted content.