Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 80f7f23bea03b238…

MALICIOUS

RTF / .DOC

2.1 KB First seen: 2024-10-13
MD5: f5fc224eb5cbbff8ee4bf4670ed9611a SHA-1: 8e3f85dd6fb94da77990987bd26bde7e59042490 SHA-256: 80f7f23bea03b2386ae91e156835c2a685d9515e0c42f4dd89f782d64a29f701
120 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Rtf.Dropper.Agent-6981601-0. Heuristics indicate the presence of embedded OLE objects and an \objupdate command, suggesting an attempt to automatically activate and execute embedded content. The RTF structure and OLE object data are consistent with a dropper mechanism designed to deliver a secondary payload.

Heuristics 3

  • ClamAV: Rtf.Dropper.Agent-6981601-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Dropper.Agent-6981601-0
  • \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_off00000083.bin
b9f0f9386bd2be7cb2603da1792380bef2244589f48f428d7d6b3b83914a7ca8
rtf-objdata-decoded RTF \objdata at offset 0x83 932 bytes