RTF malware analysis — malicious · 35aa094ef5e31708

MALICIOUS

RTF

706.0 KB First seen: 2024-07-17

MD5: e04274edaef1c789f6748fd0b16b1d44 SHA-1: 2bd27c050da6e0741192748554bb4f5f3f7afa34 SHA-256: 35aa094ef5e31708b49d5128ab5a7c05bdc71af43dd605f9140d71c396528929

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204 User Execution T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.005 Visual Basic

The RTF file contains embedded OLE object data and heuristics indicate that \objupdate forces OLE activation, suggesting the execution of a malicious object. The document body provides a lure, instructing the user to 'click Enable editing from the yellow bar above', a common technique to bypass macro security settings and execute embedded content.

Heuristics 4

\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
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00040d48.bin` `2925d1857f97512bf77b002242d88c446d56b2ccc8b576dedff929554241ca67`	rtf-objdata-decoded	RTF \objdata at offset 0x40D48	2094 bytes

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