Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 c71e7a8e48437479…

MALICIOUS

RTF / .DOC

1.31 MB
MD5: 7175c079e1f2ee57095a160d88455ace SHA-1: 327caa3953820ae2143f459be7dd36a837a3d20e SHA-256: c71e7a8e48437479a55cde6940548e03de4ef183f588ce7f1849835f5120dc28
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The RTF document contains OLE object data and is configured to automatically update and activate OLE objects, indicating an attempt to execute embedded content. The document body presents a lure related to financial audits, instructing the user to 'enable editing', a common tactic to bypass macro security. This suggests the document is designed to trick the user into enabling macros or other active content, which would likely lead to the download and execution of a secondary 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_off000a17e1.bin
12b38ed6b860527ce0582a85fe09d7617e7e80fd69badeb4313dd35d43c4d9b3
rtf-objdata-decoded RTF \objdata at offset 0xA17E1 4260 bytes