Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 29fe435f0b2197e6…

MALICIOUS

RTF / .DOC

722.0 KB
MD5: a62d9a9ddd98d34dd3702ff569c88cc8 SHA-1: b5cb07a16e8c98ea427803527127b0ab0261a629 SHA-256: 29fe435f0b2197e62a4e90ddec05f6805c57b0966dcc5086201adf2bd5877fe0
80 Risk Score

Malware Insights

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

The sample is an RTF document containing an embedded OLE object, which is a common technique for delivering malicious payloads. The document body presents a lure related to financial audits, instructing the user to 'Enable editing' and likely macros, which is a known tactic to bypass security measures. The presence of OLE object data and the instruction to enable editing strongly suggest the document is designed to execute embedded malicious code upon user interaction.

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_off0000b1da.bin
9aa10ad3f7d37720a2d7e904d8086f9f18052895f7e7d48f9bb97e7036b2c91b
rtf-objdata-decoded RTF \objdata at offset 0xB1DA 4785 bytes