RTF malware analysis — malicious · 653eb05007af4020

MALICIOUS

RTF

14.2 KB First seen: 2019-04-18

MD5: 753461cbcf26ffe00702460c7fc7b7af SHA-1: e47af95132f6cb1cf9181f2d145b50ab0695b46f SHA-256: 653eb05007af402043add78225fdcd708255bdcb0dc46dd074a3def8b81be435

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF document contains embedded OLE object data, indicated by RTF_OBJDATA and RTF_OLE10NATIVE_STREAM heuristics. The RTF_OBJUPDATE heuristic suggests that the embedded object is designed to be activated automatically, likely leading to the execution of a malicious payload. No specific family could be identified, and no further IOCs were extracted.

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_off000007ff.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x7FF	4155 bytes
SHA-256: `41f00045699b343e88e9f9aec77a7e6ed6f0edc9aaa54e42dd5d16a90dcf7305`

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