RTF malware analysis — malicious · 9d136767bbe7b198

MALICIOUS

RTF

19.4 KB First seen: 2022-10-10

MD5: 690a8db55d4233ecdc4d61e3148269d4 SHA-1: a1942c7c81109d3f818dd7164f7cb8ddf6966976 SHA-256: 9d136767bbe7b19881fcd8a5b0c8609fadeaaec068f527077a228bf649631995

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains OLE object data and uses \objupdate to force OLE activation, indicating an attempt to exploit a vulnerability. The presence of \objupdate and Ole10Native stream strongly suggests the embedded OLE object is malicious and intended to be executed. No document body or script content was available for further analysis, limiting the ability to determine the exact payload or delivery mechanism.

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_off00001372.bin` `07cc021f929a9bd75704172a7e87910ff98cc1cbb30c24d15699a932aca9149e`	rtf-objdata-decoded	RTF \objdata at offset 0x1372	4184 bytes

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