Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 50be12c22c9e50ea…

MALICIOUS

RTF / .DOC

317.7 KB
MD5: 8d9baa36145f9089d8d3a7a411311bb6 SHA-1: b17355f07ea22f86f1b81ff229e0d0035baeecdb SHA-256: 50be12c22c9e50eacf7441f6394f457adcbe3a9644b65a327a464b0759bde823
174 Risk Score

Malware Insights

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

The file is an RTF document containing an embedded OLE object, as indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be activated automatically, which is a common technique for exploiting vulnerabilities or delivering malicious payloads. The embedded artifact, objdata_00_off0000080f.bin, is likely the payload. No specific family could be identified, and no further IOCs were extracted.

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
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000080f.bin
48bbd1524ec06b1a1c9c3ecd7d6c9f4aca21feab767e485d93dd45609b5b2610
rtf-objdata-decoded RTF \objdata at offset 0x80F 64582 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.92, consistent with packed or encrypted content.