Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b061bbe895ab0620…

MALICIOUS

RTF / .DOC

24.8 KB First seen: 2022-08-02
MD5: 8fba73bedafdacd14bc5f9a24fbd2876 SHA-1: 66344cc6bd38fcd883bbda4aafe31293c53eb6ea SHA-256: b061bbe895ab062043d4980e755eea721d5c5a4a666e989d964f1890d53b7af1
100 Risk Score

Malware Insights

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

The RTF document contains OLE object data and uses \objupdate to force OLE activation, indicating an attempt to exploit vulnerabilities. The presence of OLE object data and the high severity heuristics strongly suggest that the file is designed to execute embedded code, likely for malicious purposes. No specific family could be identified.

Heuristics 3

  • Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM
    RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
  • \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_off00001d20.bin
ae859734c3dccc78480833e33cdd02334919d70569863b9b8999e70aa8920da5
rtf-objdata-decoded RTF \objdata at offset 0x1D20 4307 bytes