Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 fd6e44d0bf9d836a…

MALICIOUS

RTF / .DOC

470.5 KB First seen: 2022-10-31
MD5: 9bfa288947cf790aa0cc1ebe7f39c8fb SHA-1: f224f3c37ccffebc2b4fdf607c8a64b938a08980 SHA-256: fd6e44d0bf9d836a030fd569e89f4435c06f4eafe19503c45c3d5b01c5605ba9
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 an \objupdate directive, indicating it's designed to activate embedded objects. The 'SE_ENABLE_LURE' heuristic confirms the document instructs the user to enable editing, a typical social engineering tactic to bypass security measures and execute malicious content.

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
  • 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_off00001d6f.bin
d4b0262d37053f357c9209be0602ba26a37d8622a7602b5cae67bdee4786c784
rtf-objdata-decoded RTF \objdata at offset 0x1D6F 1902 bytes