RTF malware analysis — malicious · 6f71e1c2e52e6eaa

MALICIOUS

RTF

22.1 KB

MD5: 70c1a705af28923926d48b9181d383ad SHA-1: f4fdc968e1b39e4108fea4c36e505074b5befe0f SHA-256: 6f71e1c2e52e6eaa0c0fe2e5110f80e32709388b387802bcc7f30643100bc2f9

100 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains OLE objects with embedded data, and a specific heuristic indicates that \objupdate forces OLE activation. This suggests the file is designed to exploit OLE object handling to execute code. The presence of OLE objects and the activation mechanism strongly point towards an exploitation attempt, likely delivered via spearphishing.

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_off00000b7a.bin` `2ee6879e66709211f5edfb095009a0776a0f770543d46a19b8f5bbcad9293b37`	rtf-objdata-decoded	RTF \objdata at offset 0xB7A	4190 bytes

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