Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b10384fcaf2f5d12…

MALICIOUS

RTF / .DOC

13.4 KB First seen: 2022-08-17
MD5: e74058077a2d0a97123dd15e6ff29db6 SHA-1: e4a84121cde78ff08548dee1369b0cb5eb35540e SHA-256: b10384fcaf2f5d12b226854f38e5e03f36830ae2ebc4f5a7ab5b171ee7d26086
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 uses an \objupdate directive, indicating an attempt to activate embedded objects. The heuristic 'SE_ENABLE_LURE' confirms that the document instructs the user to enable editing, a typical lure for macro-based malware. No specific family could be identified, and no executable payloads or network indicators were directly extracted.

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_off00002008.bin
9e59fb1adcb9bfdcdbc2b4a801f956f260ad9dc08b95a6ec9b780a7eb92ebcde
rtf-objdata-decoded RTF \objdata at offset 0x2008 1640 bytes