RTF malware analysis — malicious · fdbb45df8484abd7

MALICIOUS

RTF

19.1 KB First seen: 2022-09-24

MD5: 667ca3766842797e83386743bca6565e SHA-1: b6565a2edee0a21b454c924474d415fc64c48b4e SHA-256: fdbb45df8484abd7135db33d949f07605a51629919d323fe2066db0f9982adfe

100 Risk Score

Malware Insights

MITRE ATT&CK

T1559 Component Object Model Hijacking T1559.001 Component Object Model Hijacking: OLE

The RTF document contains OLE object data and uses \objupdate to force OLE activation, indicating an attempt to execute embedded code. The high severity heuristics for RTF_OBJUPDATE and RTF_OLE10NATIVE_STREAM strongly suggest this malicious behavior. No specific family could be identified, and no direct IOCs like URLs or hashes were extracted from the provided evidence.

Heuristics 3

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.
\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_off000010f2.bin` `606ce87ef47bdb81885fe748dd29d400386413d23b50ebe8cc91d50e2745879c`	rtf-objdata-decoded	RTF \objdata at offset 0x10F2	4193 bytes

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