Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 df57ae65e4de420e…

MALICIOUS

RTF / .DOC

51.2 KB
MD5: a2515b87dda9d9b79d2244842e212641 SHA-1: 2e13f79a8ca812745977cf0069aea9129882572c SHA-256: df57ae65e4de420e52a8fb61728e47e2a8ab3493f5a2de43073eda67b0eef6eb
60 Risk Score

Malware Insights

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

The file is an RTF document containing embedded OLE object data, as indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this embedded object is designed to be activated, likely exploiting a vulnerability in Microsoft Office applications. The extensive obfuscated document body content does not provide specific clues about the payload, but the presence of OLE object data strongly suggests an exploit attempt. No specific malware family could be identified.

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_off000013cf.bin
672790b6af33fd8bf741e1b1960d7ee51d4100414964fc49f2367f955fee0694
rtf-objdata-decoded RTF \objdata at offset 0x13CF 1715 bytes