RTF malware analysis — malicious · ec47f9cccac0d2a7

MALICIOUS

RTF

19.6 KB First seen: 2023-02-06

MD5: f02c284ce920036a993dfcfe74a8fe67 SHA-1: c45621a498bd64c4c3a8a7065f72cf210c37f4a0 SHA-256: ec47f9cccac0d2a70230d4b3982d1538a3d87cff3203b5debeefaf7443b33c01

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains embedded OLE object data and triggers OLE activation via \objupdate. This indicates an attempt to exploit vulnerabilities related to OLE object handling within RTF documents. The embedded OLE object is likely a secondary payload designed to download and execute further malicious content, although the specific payload could not be determined from the available data.

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_off00000c7c.bin` `84c6c14bcf927ea4c0aeb71269da7c30dfb48baba3625b326801d3d3a5da5f95`	rtf-objdata-decoded	RTF \objdata at offset 0xC7C	4172 bytes

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