Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 3000283e220755fc…

MALICIOUS

RTF / .DOC

44.8 KB First seen: 2023-01-12
MD5: 958cdc13e049ed7244c192fd6653f110 SHA-1: 1ec9a835d7defe8cdf417c1561a8953f5cb3fded SHA-256: 3000283e220755fc858206139c8238b4cc7772a9b238bc80d54aecbf288390f7
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution: Malicious Link T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The sample is an RTF document that contains OLE object data and an instruction to enable editing, indicating a social engineering lure to bypass macro security. The heuristic 'SE_ENABLE_LURE' directly supports this attack pattern. No scripts were extracted, and the document body content is academic, suggesting the lure is the primary mechanism for delivery.

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_off000049d6.bin
f434d72dfa3fbe85d43852e1f0b87bd11a0642dc95b8e00293cd248ed0ea6df3
rtf-objdata-decoded RTF \objdata at offset 0x49D6 1851 bytes