Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 8016b5244c4074c1…

MALICIOUS

RTF / .DOC

436.3 KB
MD5: 21f845742c01993685ad8812a04ac6ca SHA-1: d818e8338e7ad52c4974f3f9cf7f0effa5822682 SHA-256: 8016b5244c4074c1f7dd68bc4bbddf44adc5af75ef0c90383d9c9b0bc36ee4e2
184 Risk Score

Malware Insights

MITRE ATT&CK
T1559.002 Component Object Model and Distributed Component Object Model

The RTF document contains OLE objects that are automatically linked and updated, indicating an attempt to exploit vulnerabilities associated with OLE activation. The presence of multiple \objdata sections and an Ole10Native stream further supports this. No scripts were extracted, and the document body was not available, limiting further analysis of the specific payload.

Heuristics 5

  • Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM
    RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \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 2 \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_off00001d78.bin
9bb12baba7f69d78f1a8411be3bc46d9190fed8007ce2fa37dd36348eaf14861
rtf-objdata-decoded RTF \objdata at offset 0x1D78 175699 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.98, consistent with packed or encrypted content.