Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 d7b7d2eacf44e28a…

MALICIOUS

RTF / .DOC

3.4 KB First seen: 2023-04-14
MD5: abd013d7ac083bddfc67331378c6167e SHA-1: 0a94c9e50407c7d4311725170882966bb297a9f8 SHA-256: d7b7d2eacf44e28aa1d1f71e08e7579fe396fe29dd284390a620997b3556f789
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains embedded OLE object data, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be automatically activated upon opening, likely exploiting a vulnerability to execute arbitrary code. The specific exploit and payload are not discernible from the provided evidence.

Heuristics 2

  • \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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000008b.bin
bee30fd0871a22b102a1ecc9c9e40662a65f430dd711988cbb6684b53960f2f7
rtf-objdata-decoded RTF \objdata at offset 0x8B 1619 bytes