Malicious RTF — malware analysis report

Static analysis result for SHA-256 b2a1b1c55e7abd6e…

MALICIOUS

RTF

4.3 KB
MD5: 9f8d18006375336167b86c2f3cf45814 SHA-1: c39e5487e6eb95546f446d043006308434a4fcc8 SHA-256: b2a1b1c55e7abd6ef1282557b662806b63db5c6a23f0a50d1508ec4bf9ce6a9c
120 Risk Score

Malware Insights

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

The RTF file contains OLE object data and an \objupdate directive, indicating it's designed to trigger OLE object activation. ClamAV identifies this as Rtf.Dropper.Agent-7701676-0, a known dropper. The embedded OLE object likely contains or fetches a malicious payload. The document body content is not indicative of a specific lure.

Heuristics 3

  • ClamAV: Rtf.Dropper.Agent-7701676-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Dropper.Agent-7701676-0
  • \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_off00000094.bin
fdda02282152b50a76e2647551753bb407897e515b0b418fff6619608d90e250		 rtf-objdata-decoded RTF \objdata at offset 0x94 1895 bytes

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