Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 fe6dc6138bf4bd85…

MALICIOUS

RTF / .DOC

687.4 KB
MD5: 00c4c82a063c048c37808a72ea1f04e3 SHA-1: 9ab87b7393168e6a3f181524ee69c818bd70cff6 SHA-256: fe6dc6138bf4bd851087fcc708493877ff458ba2da42f499ced66164e8e9dcd2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment

The file is an RTF document containing an embedded OLE object that is automatically linked and updated, indicating an attempt to execute embedded content. The document body contains a lure instructing the user to 'enable editing', a common tactic to bypass security measures. The presence of an OLE object and the lure strongly suggest the document is designed to deliver a malicious payload.

Heuristics 4

  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \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_off00013721.bin
c53a9655c3cb0dddc4cccee81f8daca7969e2c8dcebac00e4b9e9f1eedc8130a
rtf-objdata-decoded RTF \objdata at offset 0x13721 3769 bytes