Malicious RTF — malware analysis report

Static analysis result for SHA-256 9ee699603b0815cb…

MALICIOUS

RTF

50.1 KB Created: 2017-08-18 04:06:00 First seen: 2017-08-27
MD5: e7c68ba8d39d8bf0e3e8d0e5f6df5741 SHA-1: 71b63d06194b4d78a6e784e97e2e94bd58792b58 SHA-256: 9ee699603b0815cbb7d9ca450a586d5188076cfbfa312514b4650bf0531438c1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF document contains an OLE object that exploits CVE-2017-0199, indicated by the 'CVE_2017_0199_WEAPONIZED_URL' heuristic. This exploit targets a vulnerability allowing the execution of a remote HTA file located at http://localhost/hta/2.hta. The presence of OLE object data and presentation streams further supports the exploitation of embedded objects 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://localhost/hta/2.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_off000029f6.bin rtf-objdata-decoded RTF \objdata at offset 0x29F6 4784 bytes
SHA-256: 3934eeaef7e7d8b31d919816579b9b77d5ea0def29b218cc5e5c7f45c73437da

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