RTF malware analysis — malicious · 18c36d9bef8c4b3e

MALICIOUS

RTF

779.1 KB First seen: 2024-07-24

MD5: e72941b6d0735e4b2cb051e9ae9b6839 SHA-1: 6e3678c1dbe7b22bad7e6ad598821ba5c0f45252 SHA-256: 18c36d9bef8c4b3e1c4ee7504b60d34d4145d45932a5d36468d7b56f5008b91f

120 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 heuristics indicate that an automatically linked OLE object is present and forced to update, suggesting it will execute when the document is opened. The document body provides a lure by discussing financial audits and instructing the user to 'enable editing', a common tactic for macro-based malware delivery.

Heuristics 4

Automatically linked OLE object high RTF_OBJAUTLINK

RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
\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_off0006eec2.bin` `c62e31afb9136de34c1d591729f411780bcb6479e2c300a0ebaa24f553d6ff60`	rtf-objdata-decoded	RTF \objdata at offset 0x6EEC2	1556 bytes

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