RTF malware analysis — malicious · f87b7d2124d6b7f1

MALICIOUS

RTF

28.5 KB First seen: 2023-07-05

MD5: cd50d67ceed86dfca39f4c375e548ab0 SHA-1: 415dd93ae4fcda969dc2d754f8fbc3e1133e9024 SHA-256: f87b7d2124d6b7f190072409eb6f819ed9e88aa0f8ae04ec6c63c56ebebd4cc6

100 Risk Score

Malware Insights

MITRE ATT&CK

T1559.001 Component Object Model Hijacking

The RTF file contains OLE object data that is automatically linked and updated, indicating an attempt to execute embedded content. The presence of ` tfobjdata`, ` tfobjautlink`, and ` tfobjupdate` heuristics strongly suggests the file is designed to exploit OLE activation mechanisms. While no specific document body content or scripts were provided for analysis, the OLE object data itself is the primary indicator of malicious intent, likely serving as a dropper for further malicious payloads.

Heuristics 3

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00001fc7.bin` `c4de47ff7eec06ad514fbae59eb4c60cf90b245caef83c37ee7bd1721fd54975`	rtf-objdata-decoded	RTF \objdata at offset 0x1FC7	4176 bytes

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