Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 604c453e87aa8274…

MALICIOUS

RTF / .DOC

17.2 KB First seen: 2022-08-29
MD5: 08dcf768c3abb87416847991b479202f SHA-1: 72fa882c47d4524b58eb406b5a834f51ec4f560a SHA-256: 604c453e87aa8274b5046bea9a41b57008f3584d62d4f97e9327b4a53eca59ab
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution T1204.002 Malicious File

The RTF document contains OLE object data and uses an \objupdate directive, indicating an attempt to activate embedded objects. The SE_ENABLE_LURE heuristic confirms that the document instructs the user to enable editing and macros, a typical lure for malware droppers. No specific family could be identified, and no executable content or network indicators were extracted.

Heuristics 4

  • Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM
    RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
  • \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_off000010d9.bin
c63c8284b88cc99d0d460832132ff549343b440134f33c826f4ec4b3ae87f599
rtf-objdata-decoded RTF \objdata at offset 0x10D9 4252 bytes