RTF malware analysis — malicious · 79f481158cf60cec

MALICIOUS

RTF

2.9 KB First seen: 2023-08-04

MD5: 62ae70d26d5ac24c57e519bf4f2a9aa7 SHA-1: 2720cc0e9c0720afae5ca417fa8f0dd4f082463c SHA-256: 79f481158cf60cec713c5e56180bbd2223ced74eb7b8828a6ccb4498b63f059e

80 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains embedded OLE object data, indicated by RTF_OBJDATA and RTF_OBJEMB heuristics. The RTF_OBJUPDATE heuristic suggests that the embedded object is designed to be activated automatically, likely leading to the execution of malicious code. The specific exploit or payload is not detailed, but the mechanism points to a classic OLE object exploitation technique.

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
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000095.bin` `71544bfbda4e810c08c817f8ac18c82052a0d80497e455d806507de6d871474d`	rtf-objdata-decoded	RTF \objdata at offset 0x95	1395 bytes

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