Malicious RTF — malware analysis report

Static analysis result for SHA-256 9febe54562753d49…

MALICIOUS

RTF

49.7 KB Created: 2017-11-20 17:35:00 First seen: 2017-11-29
MD5: e4eefc9b5366dc31acfa9872e8b470af SHA-1: fb4d28068114090ce2cbe42d50781c88df253c33 SHA-256: 9febe54562753d4992f953aa21b694958f9f174ee6e3daefd246199dbe57a986
202 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object that exploits CVE-2017-0199, indicated by the 'CVE_2017_0199_WEAPONIZED_URL' heuristic. This exploit attempts to download and execute a payload from the URL http://192.168.100.199:8080/default.hta. The presence of OLE object data and automatic linking further supports the exploitation vector.

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://192.168.100.199:8080/default.hta In RTF body
    • http://schemas.microsoft.com/office/word/2003/woIn RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00002783.bin rtf-objdata-decoded RTF \objdata at offset 0x2783 4944 bytes
SHA-256: 3d56b931152dddc5fbccd6d64a570fec00b12c4252887dd8af023b52707669ec

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