Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 2376c91278cfd2e8…

MALICIOUS

RTF / .DOC

8.0 KB First seen: 2022-09-06
MD5: 9517dfa1a9fd9950ca837048a36c2251 SHA-1: 47b2e57d36b000bbe6e314dbe36d9027e526b91c SHA-256: 2376c91278cfd2e83b7effeca44ffb2faee9e614fe4830f129f31da7e2ae05e7
80 Risk Score

Malware Insights

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

The RTF document contains OLE object data and uses an \objupdate directive, indicating an attempt to activate embedded objects. The document body explicitly instructs the user to click "Enable editing", which is a social engineering lure to bypass security measures and likely execute embedded 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_off00000d20.bin
b255a3de12df56bad1ab979dfec3b803508b627e04e1f0179ba212f4c588a58c
rtf-objdata-decoded RTF \objdata at offset 0xD20 1666 bytes