Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 87bb2446dad3299a…

MALICIOUS

RTF / .DOC

11.3 KB
MD5: d391c0ee5947b01402827b4aaf334d59 SHA-1: 02162c15eab7449a5ad7f7f6fee7dd2949763636 SHA-256: 87bb2446dad3299a367749741be4cd8a16203a44b97122b1db26ff2be590ba18
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains embedded OLE objects that are automatically linked and updated, indicating an attempt to exploit OLE activation mechanisms. The heuristics RTF_OBJAUTLINK and RTF_OBJUPDATE strongly suggest that the document is designed to trigger the execution of embedded code upon opening. No document body or script content was available for further analysis, limiting the ability to determine the specific payload or delivery chain.

Heuristics 3

  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001b96.bin
09e17266a4cb2ff630359312beaf30b662d267e5db63d727c07e29508c41c4b7
rtf-objdata-decoded RTF \objdata at offset 0x1B96 1721 bytes