Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 5f5728979d8799b9…

MALICIOUS

RTF / .DOC

707.5 KB
MD5: 9bdd083aaef05b39d23fb9ed8233f4aa SHA-1: 16d3d99062473242cbdd15a7a99571c49c4cad31 SHA-256: 5f5728979d8799b9b89344289d10afad316e95c8752b20d4ae3b1558844b336b
80 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to embed and activate external content. The document body explicitly instructs the user to 'enable editing', a common lure for macro-based malware. This suggests the file is designed to exploit user interaction to execute a payload, likely via embedded OLE objects.

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_off00012335.bin
a9a947da8a6557f07601775008f04af0ff77f3eccd29a82994c337aac70526ac
rtf-objdata-decoded RTF \objdata at offset 0x12335 4273 bytes