Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 7f8a72e5d1c8c4f2…

MALICIOUS

RTF / .DOC

7.7 KB First seen: 2022-06-17
MD5: 9a96541d5e2837e63bd566719ae1dadd SHA-1: fc233430f886dcfb2c16c27cc736d78ec90b9972 SHA-256: 7f8a72e5d1c8c4f2b89e5cf275ab5458f3685222d56aefeb462f50fc83b46f91
60 Risk Score

Malware Insights

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

The RTF document contains embedded OLE object data and triggers an \objupdate event, indicating an attempt to exploit a vulnerability. The presence of OLE object data suggests the document is designed to execute embedded code or exploit a vulnerability upon opening. The heuristics indicate a high likelihood of malicious OLE object activation.

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_off00000d03.bin
fa8045a53dea898503969a785753c9be6138f6705e84ccdd3226e87b2908ccf0
rtf-objdata-decoded RTF \objdata at offset 0xD03 1584 bytes