Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 9207c539cbf9bf0d…

MALICIOUS

RTF / .DOC

751.7 KB
MD5: 78568fd800506260234d52e54ea7c704 SHA-1: 70b6aefa9d0ab5c9c5af244616eba6f94ff40155 SHA-256: 9207c539cbf9bf0d45b4b686e5ccf8fcdff9b7287680a876b12f3ab822c10b69
100 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 objects and uses an \objupdate directive, indicating an attempt to activate embedded content. The document body presents a lure related to financial audits, instructing the user to 'Enable editing', which is a common tactic to bypass macro security. The presence of these elements strongly suggests the document is designed to execute malicious code upon user interaction, likely via macros, to download and run a secondary payload.

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_off00018397.bin
15e09f32cda8258c5230fe2b66186831367bb77089d2b9384610ade71bbcc4dc
rtf-objdata-decoded RTF \objdata at offset 0x18397 4233 bytes