Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 5e2ea28a749eebcd…

MALICIOUS

RTF / .DOC

290.6 KB First seen: 2024-05-22
MD5: 4ae4f406a86fc7990a5e34d40211a8f8 SHA-1: 0ce1b143ab7190fb04de4e147848cab27123e091 SHA-256: 5e2ea28a749eebcda988dd2395c0e205e9f4b2f2edfc14700f317ca62bb91a90
80 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 OLE object data and uses an \objupdate directive, indicating it's designed to activate embedded objects. The heuristic 'SE_ENABLE_LURE' confirms the document instructs the user to enable editing, a common tactic for macro-based malware delivery. The content discusses financial audits to create a plausible reason for the user to interact with the document, likely to bypass security measures and execute a 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_off00015618.bin
7b2ca864b3d5fca8bf3a1538ef476cb219647d7c82e427fdf526d2ebde5fa049
rtf-objdata-decoded RTF \objdata at offset 0x15618 1601 bytes