Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 79c8fd1442aab68b…

MALICIOUS

RTF / .DOC

15.3 KB
MD5: 5425f15c6cd1a267b6ee3675ced9ba3a SHA-1: 8c85d41e1eb25f784c4badc1959bf0f4f3abd55b SHA-256: 79c8fd1442aab68baf4347c21376163936d5bba720acc046c6bd04908479552a
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit OLE activation for code execution. This is a common technique for delivering secondary payloads, though no specific payload or download URL was directly extracted from this sample. The high-confidence heuristic firings strongly suggest exploitation.

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_off00001463.bin
4e545790ffb03bcb4320e70d766b6bcb094384db8fc2815c1f55312e9804f24a
rtf-objdata-decoded RTF \objdata at offset 0x1463 1752 bytes