RTF malware analysis — malicious · 17b640449aa90a91

MALICIOUS

RTF

22.5 KB First seen: 2023-06-02

MD5: f4b2703a921facad2c48fdecca12ae21 SHA-1: 020a8ebfa0b76d556b782bca144e644ac30b0c74 SHA-256: 17b640449aa90a91d32537b3206b270952e61270442a74a43bfefbe8d1cb6275

60 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains OLE object data and a ".objupdate" directive, which strongly suggests it is designed to embed and automatically activate a malicious OLE object. This technique is commonly used to deliver secondary payloads, such as malware, by tricking the user into opening the document. No specific family could be identified from the available heuristics.

Heuristics 2

\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_off0000111e.bin` `3b6c3aa0bd15f07ebaea3a44eccb2d3a5d3edf858776f11ef9b2155ca76611c8`	rtf-objdata-decoded	RTF \objdata at offset 0x111E	3656 bytes

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