RTF malware analysis — malicious · 66cd4a0dce9f55d6

MALICIOUS

RTF

28.0 KB First seen: 2023-06-02

MD5: 3568ed7db40dd986ef1fc39c275c1dde SHA-1: 95409c0f4f46f64c2622601f56467d09a37e0a38 SHA-256: 66cd4a0dce9f55d688990db1ca5a7aff30b4685b5a88987af85f012b3cba1521

60 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1027 Obfuscated Files or Information

The RTF file contains OLE object data and uses \objupdate to force OLE activation, indicating an attempt to exploit embedded objects. This is a common technique for delivering malicious payloads, likely through a downloaded second-stage artifact. The specific nature of the payload cannot be determined from the provided evidence.

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_off00001bc2.bin` `3f0181a80610394c3c9564a6af481022c9da8e94383f792bd35f321792e0185a`	rtf-objdata-decoded	RTF \objdata at offset 0x1BC2	4173 bytes

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