Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 af162e684068ed41…

MALICIOUS

RTF / .DOC

3.2 KB First seen: 2023-08-04
MD5: 7bc158071de9a94451298877fb2d37d8 SHA-1: fd4c247f07c6461d0829735e811a276886f778c3 SHA-256: af162e684068ed41c801399033249b99aa7c2a4426f1a0ed4adab6d610cebe59
60 Risk Score

Malware Insights

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

The RTF document contains embedded OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability upon opening. The heuristics suggest the file is designed to trigger an OLE object activation, likely for malicious purposes such as downloading and executing a payload. No document body or script content was available for further analysis.

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_off00000093.bin
0a59359c655b91264bd70a9f8740c92a5ab4207d936b4e1895391f70448a7ef8
rtf-objdata-decoded RTF \objdata at offset 0x93 1520 bytes