Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 bc24b4f7b770150e…

MALICIOUS

RTF / .DOC

38.8 KB First seen: 2022-10-13
MD5: 76237c30aaeef26e9c6a837ddaa2281e SHA-1: dc4406d2584856485c02a63fb50e58a0e4002a76 SHA-256: bc24b4f7b770150e054358a92bfc5da154fade72fe6e1e07cfb8db582bc0a1e4
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 document contains OLE object data and an instruction to enable editing, indicating a lure to bypass security settings. This is a common technique for delivering malicious payloads, likely through embedded macros or exploits within the OLE object. No specific family could be identified, and no direct IOCs were extracted.

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.

FilenameKindSourceSize
objdata_00_off00000673.bin
985a70ccb12e7751d3f2782c41a5bb5966e5b8f3ae43dcbcf37a4cda087031d3
rtf-objdata-decoded RTF \objdata at offset 0x673 1505 bytes