RTF malware analysis — malicious · 03b227518fba2bb5

MALICIOUS

RTF

17.9 KB First seen: 2022-10-06

MD5: 99fec73faab1a1479c2fba866ae806f9 SHA-1: 7221c0e98806be73c95c61fbf493cfafba17c719 SHA-256: 03b227518fba2bb5f5af90f9a334b45cbb07e57e25d23d4b13ca355af9ef03a0

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains embedded OLE objects, indicated by the RTF_OBJDATA and RTF_OLE10NATIVE_STREAM heuristics. The RTF_OBJUPDATE heuristic suggests that these objects are designed to be activated automatically, which is a common technique for delivering malicious payloads. 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_off00000e10.bin` `ca0b7a2cc3908249bb12dc908197fd9f20951a500997a3ac2d37d33d217a0ad2`	rtf-objdata-decoded	RTF \objdata at offset 0xE10	4174 bytes

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