Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 ec9785a6b7f5b684…

MALICIOUS

RTF / .DOC

176.1 KB
MD5: b59bf988025c0543566a2e0e62b34e0c SHA-1: 1d54e442597898554f2b203beaed0027a9d7a081 SHA-256: ec9785a6b7f5b684ed03c4438afeb60903f7c89059739cb268832ee06f2d8b8d
100 Risk Score

Malware Insights

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

The file is an RTF document exhibiting high-severity heuristic firings related to OLE object data, automatic linking, and forced updates. These indicate the document is designed to exploit vulnerabilities in OLE object handling to automatically execute embedded content. While no specific script or URL was extracted, the nature of the OLE object activation strongly suggests a downloader or exploit delivery mechanism. The confidence is moderate due to the lack of explicit payload indicators.

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 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000d63.bin
79196d3b6c150a073db2b71093b27c1dd35c136cb4fb1e116e9a0dc583b50687
rtf-objdata-decoded RTF \objdata at offset 0xD63 2148 bytes