Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 3223dd79c4d992ca…

MALICIOUS

RTF / .DOC

18.3 KB
MD5: ba077a988793bef42012f4ea39825be5 SHA-1: 0120861aec72aa402e28c71a25367a3609bda1d8 SHA-256: 3223dd79c4d992cae77414e3e334e705a4cacd22b76cfd46887f9a8979dc55be
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The RTF document contains embedded OLE objects, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that these objects are designed to be activated automatically upon opening, which is a common technique for exploiting vulnerabilities in Microsoft Office applications. The embedded OLE object data itself is likely the exploit mechanism. Without further script analysis or document body content, the exact payload and delivery method remain unclear, but the intent is to trigger an exploit upon opening.

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_off00001eb2.bin
4f753d77c69f0f868d2f4c55d34e7ef7f5eb7087dbb1e3af774ee84d446e1d57
rtf-objdata-decoded RTF \objdata at offset 0x1EB2 1959 bytes