Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 8a0fb105f2e7c8b9…

MALICIOUS

RTF / .DOC

10.4 KB First seen: 2022-04-20
MD5: 4b97d36f8f813705b4e7e4798b60442d SHA-1: ad2e6401593922b20c50277a75d021bf46d6b4b5 SHA-256: 8a0fb105f2e7c8b9945fe0ee5d8bcf7fd21b5931166a89f5a6b22ee3b989eec7
121 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit OLE object handling vulnerabilities. This suggests the document is designed to deliver a malicious payload when opened. No specific malware family could be identified from the available evidence.

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_off00001685.bin
b445de70ab1df20ceb5417fc79c7a3e80079356245c12c80e0fdbf27c9501dfa
rtf-objdata-decoded RTF \objdata at offset 0x1685 1691 bytes