Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 72f937b108d7fd93…

MALICIOUS

RTF / .DOC

529.1 KB
MD5: 3e413fe68488fe3ae56fc51cffddfce7 SHA-1: 8b8d552c5c6db885d253407526f78826b16942b2 SHA-256: 72f937b108d7fd93722c33e71f3c05ee7085a889f0c8be1d28938f235b491a94
80 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating it is designed to activate embedded objects. The document body explicitly instructs the user to 'Enable editing', a common lure for macro-enabled malware. The presence of OLE object data suggests the potential for exploitation or execution of embedded code, likely to download a second-stage payload.

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_off000304bd.bin
81936ed598fcdbde2ee7b4210288bcae8dc6f8d04824a1b8ac1e1d3ae1c35add
rtf-objdata-decoded RTF \objdata at offset 0x304BD 1605 bytes