Malicious RTF — malware analysis report

Static analysis result for SHA-256 806e5744542f8db2…

MALICIOUS

RTF

129.8 KB Created: 2017-08-22 05:43:00 First seen: 2017-08-27
MD5: 9f5cd58727f94b9acbb441e094b0d398 SHA-1: 53c61f1c3550b2d427528d62ece7f8d81988e974 SHA-256: 806e5744542f8db23736ca44beb75920963f5098735b9e8ac52dfdf7ab5e0ccb
202 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains critical heuristics indicating exploitation of CVE-2017-0199, which is a known vulnerability for remote code execution. The exploit targets a remote URL, specifically http://192.168.50.250/ms.rtf, likely to download and execute a secondary payload. The presence of OLE object data further supports the exploitation of embedded objects within the RTF document.

Heuristics 6

  • CVE-2017-0199 (OLE2Link / remote URL Moniker) critical CVE likely CVE_2017_0199
    RTF contains a URL Moniker OLE link whose decoded target is remote. Office can fetch and process the response through the CVE-2017-0199 OLE2Link attack path, but the server-side content type is not proven statically.
  • 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://192.168.50.250/ms.rtf 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_off00002f89.bin rtf-objdata-decoded RTF \objdata at offset 0x2F89 4908 bytes
SHA-256: 03308c04430249826d3a529742ec21320b6de5edc55cfc5b9378c0deb09bb9ec

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