Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 6dd55c94a5e3c10b…

MALICIOUS

RTF / .DOC

684.2 KB
MD5: d5ac3bdfc1c16165095c22500024f2f3 SHA-1: c4010fdbc899d9912f1ebc821b1bd2bad210052f SHA-256: 6dd55c94a5e3c10bb10494f9b5028f67e9a10370c88960194b9874fa7e6d5504
80 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The RTF document contains an OLE object and an \objupdate directive, indicating an attempt to exploit OLE object activation. The document body provides a lure, instructing the user to 'Enable editing' and implying the need to view content, which is a common tactic for macro-based malware. The presence of an embedded OLE object suggests the execution of embedded code, likely a macro, to achieve malicious objectives.

Heuristics 3

  • \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
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0004e9c8.bin
9600b9a6aa082e857546c7202ade4097faf25edcf1f01d471eb62a65931ddc33
rtf-objdata-decoded RTF \objdata at offset 0x4E9C8 1970 bytes