Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 3d7b310db58b4681…

MALICIOUS

RTF / .DOC

9.5 KB
MD5: 140eb87625ff45080ad780ead5ad35df SHA-1: bc444dac73447a7c1bc16fc1efe7de4e9fedb5a5 SHA-256: 3d7b310db58b46817f4e06c857f72a2ee27a113ef987b5566ba44a9967df4db7
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 heuristics suggest the file is designed to leverage OLE object manipulation for malicious purposes. Without a document body or script content, the exact payload and delivery mechanism remain unclear, but the presence of OLE object data strongly implies an exploit attempt.

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_off00001251.bin
2ecfb2ebee7e128df804552c0adefd09f40ce79bce6b57e946958435727ceeef
rtf-objdata-decoded RTF \objdata at offset 0x1251 1588 bytes