Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 f7282dee1da13bcf…

MALICIOUS

RTF / .DOC

1.30 MB
MD5: 7a75479fd14b0ee97d21eb77e2695403 SHA-1: f082af08cd6d63c53db66330c768d9841a14eca8 SHA-256: f7282dee1da13bcfa4ec379fd0fb224342d1fc9463e2200a53c53b4d1aa7eb34
102 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The RTF document contains embedded OLE object data and uses an \objupdate directive, indicating an attempt to activate embedded content. The document body provides a lure, instructing the user to 'click Enable editing from the yellow bar above,' which is a common tactic to bypass macro security. This suggests the embedded OLE object likely contains malicious code designed to execute upon activation, potentially downloading further payloads.

Heuristics 4

  • \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
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • 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_off000a99df.bin
eca4f8b1ea5eba351b379303bbc043feb5dee266ad15c7cf177fc9ef776ef558		 rtf-objdata-decoded RTF \objdata at offset 0xA99DF 4236 bytes

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