Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 efea661ea05011f1…

MALICIOUS

RTF / .DOC

9.9 KB
MD5: 9f57e4aebc6c124f598ca5f4b776d00d SHA-1: 3bd630be00c3fb6768213a0443a2349ee31f248b SHA-256: efea661ea05011f1e083775fc4ad98521a185ca3f15072153756e2b67819335f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The RTF file contains OLE object data and an \objupdate directive, indicating it's designed to embed and activate external content. While no specific payload or URL was extracted, the heuristics strongly suggest a malicious OLE object is present. The file type and heuristic firings point towards a malicious document designed to exploit OLE object handling.

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_off0000124b.bin
510788dcec90ca35d50366716a1a5e91260ffc8f675e8a63e0a5bbebb629b5ff
rtf-objdata-decoded RTF \objdata at offset 0x124B 1736 bytes