RTF malware analysis — malicious · 468a9f796f26c5cd

MALICIOUS

RTF

25.3 KB First seen: 2023-05-08

MD5: bdff5c8782a221578cb25c9a8c076ff3 SHA-1: 21bec8c9c3821da3735b03d8f6d48c78410cf490 SHA-256: 468a9f796f26c5cdf195a0fecce2c5cb96cc9dde10ee9ed542af0209eade1411

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The RTF file contains OLE object data and uses \objupdate to force OLE activation, indicating a likely exploit attempt. The presence of an Ole10Native stream further supports this. While no specific document body content or scripts were extracted for direct analysis of user-facing lures, the RTF structure strongly suggests a malicious payload delivery mechanism, likely involving embedded exploits.

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_off00001c51.bin` `7da61a17248e01993c87737780fce4828f863bfd1452f8e8315ebdfe875b3264`	rtf-objdata-decoded	RTF \objdata at offset 0x1C51	3660 bytes

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