Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 8e8371e83608c994…

MALICIOUS

RTF / .DOC

3.9 KB First seen: 2023-04-06
MD5: 8bab679e70a2d7fbc2dc7f7264b303fd SHA-1: 0f2430ed2fdf689aa4a14034777b74b32a0f5d34 SHA-256: 8e8371e83608c994f3708abfb2746770665f1aa84bdb7322544b2fac7c7f01fa
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and uses an \objupdate directive, indicating an attempt to exploit OLE object activation. This is a common technique for delivering malicious payloads disguised as standard documents. No specific family could be identified from the available heuristics.

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 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000081.bin
ef7aa9475061f0416359b683c2c69ad2cfd275c1be06d906e63a085d14561103
rtf-objdata-decoded RTF \objdata at offset 0x81 1872 bytes