RTF malware analysis — malicious · 844cb06eaedfc349

MALICIOUS

RTF

672.9 KB First seen: 2024-08-18

MD5: c097f701b5a3c0ab9a0ef73f53ec2421 SHA-1: e52a12aad1a049d668f545022f248cce5e47fd26 SHA-256: 844cb06eaedfc34982f21f054831859a4a5f46ecf5cef8f03f300218bd0668c9

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 uses an \objupdate directive, indicating an attempt to activate embedded objects. The document body provides a lure related to financial auditing, instructing the user to 'Enable editing' and implicitly macros, a common technique for malware droppers. The heuristic SE_ENABLE_LURE confirms this social engineering tactic.

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_off00049fff.bin` `0fcd7acaaca395f280562c3a2149b1b968db73d097865126cf17669f0bfe3a09`	rtf-objdata-decoded	RTF \objdata at offset 0x49FFF	1826 bytes

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