Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 4b3390ac1c7ee66b…

MALICIOUS

RTF / .DOC

9.1 KB First seen: 2022-07-11
MD5: d300c52f92eef2aeb5f694973ff23990 SHA-1: 7911180bbd38548a7035437808845a1d1b18048d SHA-256: 4b3390ac1c7ee66bb59dd0441f5242fffd8617e56172fb54ed9ef1f36edae0d0
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 OLE object activation. This suggests the file is designed to deliver a payload when opened, likely through a spearphishing attachment. No specific family could be identified from the available evidence.

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_off00000e2d.bin
27190a286cf20176376a1786a6460abf10f0f30573878ff132fd0c1639e4170e
rtf-objdata-decoded RTF \objdata at offset 0xE2D 1535 bytes