Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 c53f1bdcb7d8081b…

MALICIOUS

RTF / .DOC

9.5 KB First seen: 2022-08-11
MD5: 8d21bb695e5c0b671a0609fb4288682d SHA-1: 379b530104ff8afca08f8cdef5b7271781f52ae3 SHA-256: c53f1bdcb7d8081b61233b2c8305ad381cd9bc405cbba75db4e9002c11da1ea7
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing via Service

The RTF document contains OLE object data and uses an \objupdate directive, indicating an attempt to activate embedded objects. The heuristic SE_ENABLE_LURE confirms that the document instructs the user to enable editing, a typical lure for macro-based malware. No specific family could be identified, and no executable payloads or network indicators were directly extracted.

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 2 \objdata section(s) — embedded OLE objects
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000ee2.bin
926da21383a442fff04a85e93efe2950986f5d5878891dfe7f8ba41c321a3bb2
rtf-objdata-decoded RTF \objdata at offset 0xEE2 1616 bytes