Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 99cb2dd45030db3a…

MALICIOUS

RTF / .DOC

16.2 KB
MD5: 84139f57a9df72dc42339697817fdb8c SHA-1: 8c4499f640886227e58049b9fc6281f31bf3b7a7 SHA-256: 99cb2dd45030db3ae4df28c2855c80b0562eaee1697a6bf01b1cd910db9be9ee
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The RTF document contains OLE object data and uses \objupdate to force OLE activation, indicating an attempt to execute embedded code. This is a common technique for delivering secondary payloads. No document body or script content was available for further analysis, limiting the ability to determine the exact nature of the payload or family.

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_off00001c3f.bin
48cdd642e358906512925e309b51e4581afb1b42c72650852b6b931a9c9f8f32
rtf-objdata-decoded RTF \objdata at offset 0x1C3F 3652 bytes