Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 e059bdcb0bb92a53…

MALICIOUS

RTF / .DOC

125.8 KB
MD5: 67c0c5d46c8357e3a895c532ab50cf9d SHA-1: 95b0e4259f82fc623062b6827ff9ae2e5fe5f133 SHA-256: e059bdcb0bb92a539ca34b83184feb3e6cf4ac8e0a497ca30cbfb27b55f564a1
102 Risk Score

Malware Insights

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

The RTF document contains OLE object data that is automatically linked and set to update, indicating an attempt to exploit vulnerabilities associated with OLE object activation. The presence of an embedded OLE object further supports this. While no specific family is identifiable, the technique suggests a malicious document designed to leverage OLE vulnerabilities for execution.

Heuristics 4

  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \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_off00000057.bin
6c874b6a48b7e5847718ebb47e0c43d066771d64b19a2cb91e47e8e688589458
rtf-objdata-decoded RTF \objdata at offset 0x57 64297 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.