Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 491f7dd5ef227fd6…

MALICIOUS

RTF / .DOC

21.2 KB
MD5: 44739c420a29975730d20fb8211e6426 SHA-1: 13429afd197d1b410911a37ec6b82274ab38e08c SHA-256: 491f7dd5ef227fd6aba9a21fe16e27a4ac621d42079b14f86adcafdac3f572c2
100 Risk Score

Malware Insights

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

The file is an RTF document exhibiting high-severity heuristics for OLE object embedding and automatic updates. This suggests the document is designed to exploit user interaction via OLE activation, likely to download and execute a secondary payload. No specific family could be identified, and the document body was heavily obfuscated.

Heuristics 3

  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \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_off000015e9.bin
e0d1f1e19411f9e5e31d827f30937db2b0540dfefd2749563c32e882e70eeaac
rtf-objdata-decoded RTF \objdata at offset 0x15E9 2158 bytes