RTF malware analysis — malicious · 6758380eb0512b4a

MALICIOUS

RTF

893.3 KB First seen: 2024-08-09

MD5: f674979f9a0a355a78fbe50c0cf06c9f SHA-1: eb02204baed70a95da61ad59294ea568328b9308 SHA-256: 6758380eb0512b4a587f165c764f8d97978631e366f4b473dc81feeded19b794

80 Risk Score

Malware Insights

MITRE ATT&CK

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

The RTF file contains OLE object data and an \objupdate directive, indicating it's designed to activate embedded objects. The document body provides a pretext about financial audits to encourage users to 'Enable editing', a common lure for macro-enabled malware. The presence of OLE objects and the lure suggest the file is a dropper intended to execute 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_off00099e13.bin` `f41d0f3622918321dab356018e3283ae713498824236c91036753c25a62c3ad5`	rtf-objdata-decoded	RTF \objdata at offset 0x99E13	1532 bytes

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