Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 ef815c51ed2d3060…

MALICIOUS

RTF / .DOC

552.0 KB
MD5: a874fdd0f5d82f1614bca0635ed48ec6 SHA-1: a738040f98fdc2ed57d4aceaf1df7d65aaf52511 SHA-256: ef815c51ed2d3060393b1fd5c94fba354fb6259db2f22b0ffb92a4ea58086ab6
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The sample is an RTF document containing OLE object data and an \objupdate directive, indicating an attempt to activate embedded objects. The document body explicitly instructs the user to 'click Enable editing from the yellow bar above,' a common lure to bypass macro security. This suggests the document is designed to trick the user into enabling content that would likely download or execute a secondary payload.

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_off0002fbf5.bin
589c53a9940b738d831adc355b0d0831797de23ac7eaf76485743f32dc980e35
rtf-objdata-decoded RTF \objdata at offset 0x2FBF5 1876 bytes