Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 77be1b4b42c069b5…

MALICIOUS

RTF / .DOC

22.5 KB First seen: 2022-11-28
MD5: 14ec89b35126d6529a0ac2500bbfc12c SHA-1: 6bf370828c12270c9e2e941b0b47a96de9ef0256 SHA-256: 77be1b4b42c069b513628a90e7d70dafed14dbb280bd92665f3c7e872af46ee9
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution: Malicious Link T1566 Phishing T1059.005 PowerShell

The RTF document contains OLE object data and an instruction to enable editing, indicating a lure to bypass security measures. This is a common technique for malware droppers to execute malicious content. The SHA256 hash is included as a primary indicator.

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_off0000430b.bin
24aa3aa1883a9ed6da5661e442a143cad9fe8998074717d5a76b14c628b0a108
rtf-objdata-decoded RTF \objdata at offset 0x430B 1652 bytes