RTF malware analysis — malicious · 4f51da0a7034a3b4

MALICIOUS

RTF

104.3 KB

MD5: ae5000f3bdc247052fa71307d6004005 SHA-1: 717ece96f38f6c290e0b93faa12d5e3f24471f0f SHA-256: 4f51da0a7034a3b491bf21d56896d2cc97f5f240911abfaeacfe73d80bd84a34

120 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1566 Phishing T1204.002 Malicious File

The RTF document contains an embedded OLE object with a CLSID indicative of the Equation Editor vulnerability. The presence of \objupdate suggests that the embedded object is designed to be activated, likely leading to the exploitation of the Equation Editor vulnerability. This is a common technique for delivering a malicious payload.

Heuristics 3

Equation Editor CLSID critical RTF_EQUATION_EDITOR

Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
\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_off0000009a.bin` `9d359a842db54ff59fb514c7078895de32894184148de259e2634456837588ee`	rtf-objdata-decoded	RTF \objdata at offset 0x9A	32705 bytes

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