Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 216f7c44be6193c3…

MALICIOUS

RTF / .DOC

570.5 KB
MD5: 00cf7f73c9a203c347cd294a05831071 SHA-1: 2048c3def996307c241d82f018d283fc7ee1c555 SHA-256: 216f7c44be6193c359ab1dc687dea34e7a3a3d46ad6b41faf646ed089955d874
129 Risk Score

Malware Insights

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

The RTF file contains OLE object data and triggers an ".objupdate" heuristic, indicating it's designed to activate embedded objects. This strongly suggests an exploit targeting RTF parsing vulnerabilities to achieve arbitrary code execution. The embedded artifact 'objdata_00_off00000c87.bin' is likely the exploit payload. Without further script analysis or network indicators, the exact secondary payload and family remain unknown.

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_off00000c87.bin
401a7abe6ef39f30bc7488a5f899da40ea866b78fc3dd0d25d6fa9bb6bf1daaa
rtf-objdata-decoded RTF \objdata at offset 0xC87 129088 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.97, consistent with packed or encrypted content.