RTF malware analysis — malicious · 5a6fcfcd7ef3d202

MALICIOUS

RTF

14.7 KB First seen: 2022-09-23

MD5: 0a15ee96cad434726960422d629063c5 SHA-1: b46ca3d9e2daf5b200453b991ea9cc294aa06e35 SHA-256: 5a6fcfcd7ef3d202d078f89b474640057b1c18ea5a600869bb512aa91dcea79d

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains embedded OLE object data, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that the embedded object is designed to be automatically activated upon opening, likely exploiting a vulnerability to execute arbitrary code. The presence of an Ole10Native stream further supports the embedding of a potentially malicious object.

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_off0000007f.bin` `a481bd11482799c0ae44d04ab8b6f9182b60f1caf4bb90db3ce4a0f4613d4e92`	rtf-objdata-decoded	RTF \objdata at offset 0x7F	4186 bytes

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