Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 a6ab84a16ff32299…

MALICIOUS

RTF / .DOC

23.7 KB First seen: 2023-06-08
MD5: 7e59937dcacd711b717c66c93b90e398 SHA-1: aa234257efec0d8e3aed263c657ffb1b5100c293 SHA-256: a6ab84a16ff322997f35be4f417d8989d66fee60fa075477892e14b5c631ffd2
100 Risk Score

Malware Insights

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

The RTF document contains OLE object data and is configured to automatically update and activate these objects. This strongly suggests an attempt to exploit vulnerabilities or execute embedded code upon opening. While no specific payload or URL was directly extracted, the heuristic firings indicate a malicious intent to leverage OLE automation for payload delivery.

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 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000c75.bin
cd77e929570641212ff50e53429d716a5bb7408779d53a58836949f6f7ca364c
rtf-objdata-decoded RTF \objdata at offset 0xC75 4167 bytes