RTF malware analysis — malicious · 13bc94a2f39a03f5

MALICIOUS

RTF

561.3 KB First seen: 2024-06-25

MD5: 6b9167056af49bf702c833ae4f581ef1 SHA-1: ed4886d86b8ad96a0a252190705d70e0fac9289b SHA-256: 13bc94a2f39a03f509036ff58462b974c401cac0df52cce22223114f909b2f72

80 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The RTF file contains OLE object data and an \objupdate directive, indicating it's designed to activate embedded objects. The document body explicitly instructs the user to 'click Enable editing from the yellow bar above,' a typical lure to bypass security measures and execute embedded content. This suggests the file is a dropper intended to deliver a secondary payload.

Heuristics 3

\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
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_off0002b71c.bin` `a5bb8ec44b8f4c4ef7c0f46e63caf63cdafa46c352fc24d521d61c243ac52450`	rtf-objdata-decoded	RTF \objdata at offset 0x2B71C	1775 bytes

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