RTF malware analysis — malicious · 156d1e789042dbab

MALICIOUS

RTF

21.4 KB

MD5: 82eaad7c27eac46f9376e57861d12304 SHA-1: 67ac4f8f0119346d43a84972d9a46d4c8ca70213 SHA-256: 156d1e789042dbab005c28766573302521bcb24acbb393cd474a21effedc8b85

100 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF document contains OLE object data and uses \objupdate to force OLE activation, indicating an attempt to execute embedded content. The presence of Ole10Native stream further supports this. While the exact payload is not discernible from the provided data, the technique strongly suggests an exploit for client execution, likely delivered via spearphishing.

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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000093b.bin` `bda16e3406e7160ce7a5c5fed833f308bd3a29e90fbec4b3b723e87b6546b6c9`	rtf-objdata-decoded	RTF \objdata at offset 0x93B	4181 bytes

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