RTF malware analysis — malicious · b7280ba4e450d2ec

MALICIOUS

RTF

381.2 KB

MD5: d71b1b00f4bd370841c0f36e45e67ffe SHA-1: 6cc3adcb66b4e339dbbdc062f042d367b79a82f1 SHA-256: b7280ba4e450d2eca0891543778d2b1959b442460ea9fd952b564ebb42ddd0e6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1559.001 Component Object Model Hijacking T1137.001 DLL Search Order Hijacking

The RTF document contains OLE object data and triggers OLE activation via \objupdate, indicating an attempt to execute embedded code. A suspicious OLE object was extracted, suggesting this is the primary mechanism for delivering a payload. The specific intent of the embedded object is unclear due to obfuscation, but the high heuristic scores point to malicious activity.

Heuristics 4

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 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.

Filename	Kind	Source	Size
`objdata_00_off000007eb.bin` `b2877420142d86ea33eca89cfb3545dff8db6631262b25588cc1d57eebdd11d9`	rtf-objdata-decoded	RTF \objdata at offset 0x7EB	194128 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 8.00, consistent with packed or encrypted content.

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