Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 0d3bae39c2f06209…

MALICIOUS

RTF / .DOC

7.7 KB First seen: 2022-08-15
MD5: 749d1c5b5ec49f8b7ed5947bae7e8bd9 SHA-1: a632dfde95555816827ddb461459b566a7231267 SHA-256: 0d3bae39c2f062097ccee0d1d1862e1069ee53933b97b949bddc9ed2c5e5374d
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing via Service

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to activate embedded objects. The 'SE_ENABLE_LURE' heuristic confirms the document instructs the user to enable editing and macros, a typical lure used by malware droppers. No scripts were extracted, but the presence of OLE objects and the lure suggests the file is designed to download and execute a secondary payload upon user interaction.

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 2 \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_off00000568.bin
dd8610c379f174a29773c5764929c9a57b44578dbe0f0f583b7c58a6b670f306
rtf-objdata-decoded RTF \objdata at offset 0x568 1989 bytes