Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 25128aab1edb1b7d…

MALICIOUS

RTF / .DOC

465.3 KB First seen: 2024-06-24
MD5: fd8649f8d7287ef36bdcec7f9b2f98c9 SHA-1: 3e0d4305545d69aa47e741061adaf2a044d01d0d SHA-256: 25128aab1edb1b7db3940787f0ae45722ea36b0a3e2423a155ea5618fab2af85
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to embed and activate external content. The document body provides a lure related to financial audits, instructing the user to 'Enable editing', a common tactic to bypass macro security. This suggests the file is designed to trick the user into executing embedded malicious code.

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_off00015812.bin
0352c5d15c797784bab1be239171a28a963005b388f43117e81728a22979b496
rtf-objdata-decoded RTF \objdata at offset 0x15812 1716 bytes