Malicious RTF — malware analysis report

Static analysis result for SHA-256 dabd7de1ac381de3…

MALICIOUS

RTF

43.5 KB Created: 2017-10-10 02:44:00 First seen: 2017-10-28
MD5: 3fbd7ae89ea370da88d2018788d041ed SHA-1: b0cfcb98e8380bdbf55d311db909fbafef553f96 SHA-256: dabd7de1ac381de3411121b3c7d04689fdfd85fd80c97900e3a0067214d246dd
202 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an OLE object that exploits CVE-2017-0199, a known vulnerability for client execution. This exploit is configured to download and execute a HTA file from the URL http://a.pomf.cat/phtiae.hta. The presence of the weaponized URL and the ClamAV detection strongly indicate malicious intent.

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://a.pomf.cat/phtiae.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_off000026c7.bin rtf-objdata-decoded RTF \objdata at offset 0x26C7 4726 bytes
SHA-256: 09d5e0586139d3513b4ffd580a2024f50b4174608aaea86609a319b7c267fdf1

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