Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 69ba69e5f2685b93…

MALICIOUS

RTF / .DOC

10.3 KB First seen: 2022-07-28
MD5: b9d4eafcfae68615f95c9e142ded7c38 SHA-1: ca609dda0516aac81a1104866fa5047a1a006a4d SHA-256: 69ba69e5f2685b93056f2d6972bbb56f1a37fe9e2721f56daa1aad5f99abfcec
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 it's designed to activate embedded objects. The SE_ENABLE_LURE heuristic confirms the document explicitly instructs the user to enable editing, a common social engineering tactic to bypass security measures and execute malicious content.

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_off0000155e.bin
261b10a1ee0b3fbfe5a772381537ceebcda54def4610853204219984314952c3
rtf-objdata-decoded RTF \objdata at offset 0x155E 1537 bytes