RTF malware analysis — malicious · e3039107048bb3de

MALICIOUS

RTF

21.5 KB

MD5: c266e43cab63451909f27fcac8ebe1a9 SHA-1: 2a401391d7b7265c6a9f4ad1d06797a30d5d97ef SHA-256: e3039107048bb3de23eabb98c6bd460b97c59addbbbc89cbed254a8037a462eb

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell 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 RTF_OLE10NATIVE_STREAM further supports this. While no specific script was extracted, the heuristics strongly suggest the file is designed to execute embedded malicious content, likely leading to a second-stage payload download or execution.

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_off000012c7.bin` `d10b05662c90d7ce3c0eed752ca06fe2c39fb2f5652dc77b9ff6f4acf435c8ad`	rtf-objdata-decoded	RTF \objdata at offset 0x12C7	3662 bytes

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