RTF malware analysis — malicious · 321c6fa6f024e57e

MALICIOUS

RTF

23.2 KB First seen: 2023-05-04

MD5: f51ba77ad7935cf732fc2fc5df33d75b SHA-1: a8799a8508302fde8d545c8edd98a34c4e08d7c0 SHA-256: 321c6fa6f024e57efa93d5e203fb0c87a05918e4513d0a501899fd865cae0f44

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains OLE object data and an \objupdate directive, indicating an attempt to exploit OLE object activation. This suggests a malicious document designed to execute embedded 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_off0000136a.bin` `49c8c2c8aeab509b4d8e16845df505fa2ae8fb2dbb1f673bb3a3082416ab9f06`	rtf-objdata-decoded	RTF \objdata at offset 0x136A	3679 bytes

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