Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b7d62d77cace8552…

MALICIOUS

RTF / .DOC

910.4 KB
MD5: 71b37aac269badfe278550c567b76db4 SHA-1: a7fb35d35eb23fe3b4358e3c843f5982a161534e SHA-256: b7d62d77cace855288bf6b463f8ad783316594f90dad78d97a7ea85be58b8bc3
120 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 is configured to automatically update and activate these objects, a technique often used to execute malicious code. The document body includes a lure instructing the user to 'click Enable editing from the yellow bar above,' which is a common tactic to bypass security measures and execute embedded content. No scripts were extracted from this sample, but the presence of OLE objects and the explicit lure strongly suggest the document is designed to deliver a 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_off000247b6.bin
34c68ddd16c6a7561f761e4172673dbc558b2a93e5eced9e58bf85e1fb301918
rtf-objdata-decoded RTF \objdata at offset 0x247B6 4248 bytes