Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 29240d6d67f7b32f…

MALICIOUS

RTF / .DOC

60.8 KB First seen: 2023-08-22
MD5: db59cf47ecf4a407d5e55d68efff2603 SHA-1: 181371aaa5e15a849cb2d38b05035517655512dd SHA-256: 29240d6d67f7b32f761c90cc21b158e7d2c3845e7f832193291ccb9ee0467062
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 objupdate directive, indicating an attempt to activate embedded objects. The document body provides a lure related to financial audits, instructing the user to 'enable editing', which is a common tactic to bypass security measures and execute malicious content. No specific scripts or URLs were extracted, limiting further analysis of the 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.

FilenameKindSourceSize
objdata_00_off00003dfd.bin
5b1b57414f1b7d255772f97b45c6bf2d9e992b46fa8061b91d008f68e5d47c89
rtf-objdata-decoded RTF \objdata at offset 0x3DFD 3653 bytes