Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 33805a97ec15a2d8…

MALICIOUS

RTF / .DOC

2.9 KB First seen: 2022-12-01
MD5: 79d6312b5a128c542ccc1e5a7d0dcc88 SHA-1: 2f836002cd132c70f4736e3b06b7d76096308e75 SHA-256: 33805a97ec15a2d8431060421e7518149715b6e4fbba17d4011fc67d8aec9f9c
60 Risk Score

Malware Insights

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

The RTF file contains OLE object data and a directive to update it, indicating an attempt to exploit a vulnerability for payload delivery. The embedded object data is likely a secondary stage or exploit. Without further analysis of the embedded object, the specific family and payload remain unknown.

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 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000072.bin
8b87cf756429f6d36997435ac3d631e5d7fc2a5eef3430d68ec53500f128ad3c
rtf-objdata-decoded RTF \objdata at offset 0x72 1355 bytes