Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 283974f989fa4cd6…

MALICIOUS

RTF / .DOC

9.2 KB
MD5: 76ddc3ff880af57fdd68105e8c884ce2 SHA-1: 5e359ccf36a923e3c38891915a1bb03905e31737 SHA-256: 283974f989fa4cd6deed2d6aee1b99b984359c921af1dc2acd93e16eb9f02f1d
60 Risk Score

Malware Insights

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

The RTF document contains embedded OLE object data and uses an \objupdate directive, indicating an attempt to automatically activate embedded content. This is a common technique for delivering malicious payloads. While no specific script was extracted, the heuristics strongly suggest the embedded object is malicious and likely attempts to download and execute a second-stage payload.

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_off0000060d.bin
f9efe8a40a86b04e47d2325e9a5777cfb10e18342474b90a74ab8ec3fceb564b
rtf-objdata-decoded RTF \objdata at offset 0x60D 1549 bytes