Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b067f6b98e98b87d…

MALICIOUS

RTF / .DOC

11.4 KB First seen: 2022-07-11
MD5: ae5b59e83cb7e9b13e396a4800b2b181 SHA-1: f77791a3ca1cec1d63841863df3514a0d6a0e8d8 SHA-256: b067f6b98e98b87d4f64583c72689bdc4dc55d4e938755ed27ae355a555bead0
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 it's designed to activate embedded objects. The heuristic SE_ENABLE_LURE confirms the document attempts to lure the user into enabling macros or editing, a common tactic for malware droppers. No specific malware family could be identified from the available evidence.

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_off000012f3.bin
1e08b8358a59334c52aa4cb5e597d1cd884974e883a878da69a21c94b39aed8a
rtf-objdata-decoded RTF \objdata at offset 0x12F3 2111 bytes