Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 d3498bc71e039b6d…

MALICIOUS

RTF / .DOC

18.5 KB
MD5: a8613bacfb92ddf2380d9f09facf0ff4 SHA-1: f1907d931ad17f895bf3714e12ac30d994bb6ab1 SHA-256: d3498bc71e039b6dfc192f1b7f113f4f6939aa3effbbaf893960a8e1a470b252
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit OLE activation for malicious purposes. The high-severity RTF_OBJUPDATE heuristic suggests that the embedded OLE object is designed to be automatically activated upon opening the document. This is a common technique for delivering and executing malicious payloads. No specific family could be identified, and no URLs or scripts were extracted to further detail the attack.

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_off00000b78.bin
3b64add7e7dbf47a888ad7881231c595e09451ecbbee52115786aa4be00dc23e
rtf-objdata-decoded RTF \objdata at offset 0xB78 1910 bytes