Malicious RTF — malware analysis report

Static analysis result for SHA-256 13cc41a30e34486f…

MALICIOUS

RTF

54.1 KB Created: 2017-11-11 22:49:00 First seen: 2017-11-13
MD5: 4cd59ffd905e69dbf88d00a00bb6dad4 SHA-1: 1de8bd7ec46eb3f55009fab5a598ff17868b5589 SHA-256: 13cc41a30e34486f2fcbd1c6843d212567badf64a521dfb2762bf6746643075d
142 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an OLE object that exploits CVE-2017-0199. This exploit is designed to download and execute a secondary payload, identified as an HTA file from the URL http://josephioseph.com/htakend.hta. The embedded OLE object and the weaponized URL are strong indicators of malicious intent.

Heuristics 5

  • CVE-2017-0199 (OLE2Link / weaponized URL) critical CVE exact CVE_2017_0199_WEAPONIZED_URL
    RTF contains a URL Moniker OLE link to a script/HTA/template-style remote loader, matching the tighter static CVE-2017-0199 shape.
  • 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.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM
    RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://josephioseph.com/htakend.hta In RTF body
    • http://schemas.microsoft.com/office/word/2003/wordmlIn RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00002856.bin rtf-objdata-decoded RTF \objdata at offset 0x2856 12076 bytes
SHA-256: a0ded3502562c40be7c61f51d92f0b7513ed6eb3b0c39b2ec3b935c78357c6d9

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