Malicious RTF / .OLE — malware analysis report

Static analysis result for SHA-256 952d257f78978916…

MALICIOUS

RTF / .OLE

887.8 KB
MD5: 8153fc547f281f5ad7204bdc3f90caf3 SHA-1: b2444fe74d896c4b9b988db8f38b513d2c515d70 SHA-256: 952d257f78978916a58764f2f08322075391f69631d997126995b0feada3ea9d
82 Risk Score

Malware Insights

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

The RTF file contains embedded OLE objects, indicated by the RTF_OBJDATA and RTF_OBJEMB heuristics. The RTF_OBJUPDATE heuristic suggests that these objects are designed to be activated, likely to trigger an exploit or download further malicious content. The presence of an extracted objdata artifact further supports this. Without a document body or script content, the specific payload and delivery mechanism remain unclear, leading to an unknown family classification and moderate confidence.

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
  • 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_off00000063.bin
0ed3b71fdaa3f4c993a18eed3da7e9a7385ae4ec7c0e57e078afaec21dcc580c
rtf-objdata-decoded RTF \objdata at offset 0x63 454431 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.