Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 4e94f6aad1e86615…

MALICIOUS

RTF / .DOC

6.5 KB First seen: 2022-05-23
MD5: 228c182c18ff02b2aa18a98641983853 SHA-1: f455f376ac2b84dde6b7be0e2a31c1b3a83e0725 SHA-256: 4e94f6aad1e8661533cfcc99983ec23c6015a35ddc352b41ccc6ccd6de58556f
139 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking T1137.001 DLL Search Order Hijacking

The RTF document contains OLE object data and triggers automatic linking and updating of these objects, indicating an attempt to exploit vulnerabilities related to OLE activation. The presence of embedded OLE objects suggests the document is designed to execute arbitrary code upon opening. No document body text or scripts were extracted, limiting further analysis of the specific payload.

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_off00000514.bin
31de6de4641e694b101c4e9d43164c2c04378f851c0835c0d89ab4c5ff8f57d6
rtf-objdata-decoded RTF \objdata at offset 0x514 1585 bytes