Malicious RTF — malware analysis report

Static analysis result for SHA-256 62f0adf23dc66d03…

MALICIOUS

RTF

1.36 MB Created: 2019-09-17 13:59:00 First seen: 2020-12-25
MD5: 0fff3a0a295b191ed055041556d327d5 SHA-1: 4914002b4652c853c0edeae999273a6e2ba5dc0c SHA-256: 62f0adf23dc66d03fa77b9c6cda8a9b8e9ca666f7a0a9052687f0a8055edba64
82 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains embedded OLE objects and a \objupdate directive, which strongly suggests an attempt to execute embedded code or exploit a vulnerability. The presence of these elements points towards a malicious document designed to compromise the user's system. No specific malware family could be identified.

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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.microsoft.com/office/word/2003/wordml In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0015583f.bin rtf-objdata-decoded RTF \objdata at offset 0x15583F 1435 bytes
SHA-256: 18400adc2a7e0885f48affe408ae2d9a1f70adb1453c8dba4772a780ee2cd2c4

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