RTF malware analysis — malicious · 448fd517382950ad

MALICIOUS

RTF

23.4 KB First seen: 2023-04-26

MD5: 8abfd578bb043d2795ee00c838fb9c68 SHA-1: 271a3e32b6f6f86350b1fe329af419be0654ffa7 SHA-256: 448fd517382950adf434a4fd5060fe5db4a48b9bc86a892cc96a0ed55886a7db

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 embedded objects. The presence of these indicators strongly suggests a malicious RTF document designed to execute arbitrary code upon opening. No specific family could be identified, and no further IOCs were extracted.

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_off00000c4f.bin` `b524dffd1530837464a9677e833413ee5191dfc4baa1b6d7535b3442b0fc2728`	rtf-objdata-decoded	RTF \objdata at offset 0xC4F	4173 bytes

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