Malicious RTF — malware analysis report

Static analysis result for SHA-256 fb43dd9917bc96ad…

MALICIOUS

RTF

44.7 KB Created: 2018-05-29 16:27:00 First seen: 2018-11-13
MD5: cb3e09f767bd4461260acdeacaecb354 SHA-1: 449a1703e34cd21e64c0d4e09dad5834e8cde1fd SHA-256: fb43dd9917bc96ad212adb361ef0e50a298fcae3e4cfd5d7acbe033fb54c148b
142 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object with an automatically linked URL, identified as a weaponized exploit for CVE-2017-0199. This exploit is designed to download and execute a HTA payload from the specified URL, indicating a malicious intent to compromise the user's system. The embedded URL is the primary indicator of compromise.

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://gulfsys.com/meaboki/htachiefsly.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_off000026e1.bin rtf-objdata-decoded RTF \objdata at offset 0x26E1 7468 bytes
SHA-256: 64b8402460ba706684c857b98806805a2d385d6183212ff5a5428e433f6a1ebc

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