Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 e73b710e825a32eb…

MALICIOUS

RTF / .DOC

18.8 KB
MD5: 93abec14185d380695f65beaaca97b84 SHA-1: c18eaeac2c4371dd8e79de62ce60a7b7767f995a SHA-256: e73b710e825a32ebe4122240ecac87eff1bc76fe130fc41fc5858dafaf96d3b7
60 Risk Score

Malware Insights

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

The RTF document contains embedded OLE object data and uses \objupdate to force activation, indicating an attempt to exploit a vulnerability. The presence of these heuristics suggests the document is designed to deliver a malicious payload. Without a document body or script content, the exact nature of the payload cannot be determined, but the OLE object exploitation is a strong indicator of malicious intent.

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_off00001cc5.bin
425a70030076b0a01e013b775cd9ccc489f756a2081510cdcf0406b54bdafaab
rtf-objdata-decoded RTF \objdata at offset 0x1CC5 1576 bytes