Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 1b9d1201de3b78fe…

MALICIOUS

RTF / .DOC

19.6 KB
MD5: 808783f2dc41e748a37e4559b691d285 SHA-1: aca8261b277ceb40ab84f7cf859f7b827144dc9f SHA-256: 1b9d1201de3b78fe22ce8c8602ef82b7ef7938f2e810dbea86439e65134657f3
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability upon opening. The high-severity RTF_OBJUPDATE heuristic strongly suggests that the embedded OLE object is designed to be activated automatically, likely leading to the execution of a secondary payload. No document body or script content was available for further analysis, limiting the ability to determine the specific nature of the payload or its ultimate goal.

Heuristics 2

  • \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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001151.bin
4a6c64534195b8ff0485097b2b75b403833d3baf14c00ca4c53c9ca9d175e456
rtf-objdata-decoded RTF \objdata at offset 0x1151 1576 bytes