Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 6f9c338998bd331f…

MALICIOUS

RTF / .DOC

675.2 KB First seen: 2024-09-07
MD5: e95d774d12e3ffc8cebcbf895e174f7f SHA-1: 1bb43bc659153b1486c81441cb6b852fea2f73f5 SHA-256: 6f9c338998bd331f4d59661d3a68c80f21934e35332996d8a194c61552e5da45
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The sample is an RTF document that contains embedded OLE object data, which is configured to be automatically activated upon opening. The document body presents a lure related to financial auditing to trick the user into enabling editing and potentially macros. This technique is commonly used by malware droppers to bypass security measures and execute further stages of an attack.

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.

FilenameKindSourceSize
objdata_00_off00057214.bin
a9f9fc8e03bb13311c1b112ad3c77c600dae926c1f7ed051bbe030f5fa3ab551
rtf-objdata-decoded RTF \objdata at offset 0x57214 1571 bytes