Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b6e9c0397a42fd11…

MALICIOUS

RTF / .DOC

1.63 MB First seen: 2025-11-20
MD5: 80d16a567f6b575be107fdceabacf77a SHA-1: e29bff191f5056084b70504134e8b6df270d495c SHA-256: b6e9c0397a42fd116e7af45a99af2cc5ff23e48e429e04dd411bea39e9fbb6c9
80 Risk Score

Malware Insights

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

The sample is an RTF document containing embedded OLE object data, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that the document attempts to force the activation of this embedded object. The SE_ENABLE_LURE heuristic confirms that the document contains instructions to the user to enable macros or editing, a common tactic for malware droppers. No specific IOCs were extracted, but the attack pattern suggests a lure to execute embedded 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_off0012a133.bin
8470d2e5fae503e0e79d21c7954aa97a8777fa8f28b19c11f76c5fcaecf9cf6f
rtf-objdata-decoded RTF \objdata at offset 0x12A133 2042 bytes