Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 2364e8ad0442d974…

MALICIOUS

RTF / .DOC

163.0 KB
MD5: 61d5d249b725fe62b603fa7eece48f42 SHA-1: 0827cafd43b62fa9c9e27f627db9a208738ecd1d SHA-256: 2364e8ad0442d974c4dda371922c291419887b316a1a397fa297e9a94abd4710
129 Risk Score

Malware Insights

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

The file is an RTF document containing OLE object data, which is a common delivery mechanism for exploits. The presence of RTF_OBJDATA and RTF_OBJUPDATE heuristics indicates that the document is designed to trigger an OLE object activation, likely leading to the execution of embedded malicious code. The extracted document body is heavily obfuscated and does not provide clear intent, but the heuristics strongly suggest an exploit attempt.

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_off000019ad.bin
8e42a840a83f1deeb5f6f88b76c8ae48bd2e0613057b05dbb892678ae2095bdd
rtf-objdata-decoded RTF \objdata at offset 0x19AD 64070 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.92, consistent with packed or encrypted content.