Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 2dfd64c86cfb81ed…

MALICIOUS

RTF / .DOC

19.2 KB
MD5: 601260b52c23f2be80998a22b2fc77dd SHA-1: e4fd634040abd4f6b58aa7efe8fb59f7e64a395f SHA-256: 2dfd64c86cfb81ed8a280b74e6e7b244a8a98d3788c8c552266ddd5327e4f055
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 uses \objupdate to force OLE activation, indicating an attempt to exploit a vulnerability. The presence of OLE object data suggests the document is designed to execute embedded code or trigger an exploit when opened. Without a document body or script content, the exact payload and delivery mechanism remain unclear, but the heuristics strongly point to a malicious OLE exploit.

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_off0000183a.bin
cdb3f8072945eb8bd1934d8f8e04d22edcba1f9ee22f35e526bbeb73de1ebe4d
rtf-objdata-decoded RTF \objdata at offset 0x183A 2209 bytes