Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b7863970a31a5cf4…

MALICIOUS

RTF / .DOC

2.7 KB First seen: 2023-07-24
MD5: 692507ead3626303656bee7eb4628196 SHA-1: 025e8df66892bf1392970f5073d33c5434c72c82 SHA-256: b7863970a31a5cf4168868582d240a06fb9a50dfbdbab2ccaa6bf6629dfcffbb
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability related to OLE object activation. This suggests the file is designed to deliver a malicious payload when opened, likely leveraging a known OLE vulnerability.

Heuristics 2

  • \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_off00000080.bin
2b2b068d63fa7327e8cb74490be5f09e023eca07187c3807ac5c942ddb5799f5
rtf-objdata-decoded RTF \objdata at offset 0x80 1303 bytes