Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 92a5b65e42af54fb…

MALICIOUS

RTF / .DOC

521.5 KB
MD5: 640c9c169dfff8cd6eda55cd5a9d33bb SHA-1: 3c6b4695b7ce1dac8c889b91e8a4253b607f6b53 SHA-256: 92a5b65e42af54fbc702acb9f7ce4aaecade12ac4a0463b5f2a83892bc932320
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 embed and activate an object. This suggests a malicious intent to exploit OLE vulnerabilities or deliver a payload upon opening. The heuristics strongly suggest the file is designed to exploit OLE object activation. No scripts were extracted, limiting further analysis of the 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 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001dfd.bin
d0469c90c5bc4a1715e580543d0f7bc5a2b8af3a1d0de6fa45fbfd0964040215
rtf-objdata-decoded RTF \objdata at offset 0x1DFD 3757 bytes