Malicious RTF — malware analysis report

Static analysis result for SHA-256 0657737cad9b7b34…

MALICIOUS

RTF

84.0 KB Created: 2017-09-15 16:34:00 First seen: 2017-10-10
MD5: 4800adb93fccc8bc74ffd81b8d24bd34 SHA-1: 4490053db9703b41b18ea46e73424a324614de44 SHA-256: 0657737cad9b7b34b486cbf825377c0420db9318630eb2253b5e935bf65bcfde
202 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains a critical heuristic firing for CVE-2017-0199, indicating it is weaponized with a URL. This URL, http://enginetop.website/wolf/W6789789456123001234.hta, is likely used to download and execute a second-stage payload. The presence of OLE object data further supports the exploitation of vulnerabilities within the RTF structure.

Heuristics 6

  • 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.
  • ClamAV: Rtf.Exploit.CVE_2017_0199-6335035-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Exploit.CVE_2017_0199-6335035-0
  • 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://enginetop.website/wolf/W6789789456123001234.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_off00002bbe.bin rtf-objdata-decoded RTF \objdata at offset 0x2BBE 17386 bytes
SHA-256: 83c1d0d904d6be910f1bb000a4f3de09e0801474a9918b32c11ffba47cd260a9

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