Malicious RTF — malware analysis report

Static analysis result for SHA-256 5c7cf7f13bf0efec…

MALICIOUS

RTF

43.3 KB Created: 2017-10-02 07:13:00 First seen: 2017-10-10
MD5: 3086530d2be8b7b3d961cfddc9191401 SHA-1: 8df85ab5efaf5593c9fe1f7a710bb8a4f1dcdddd SHA-256: 5c7cf7f13bf0efec7678c114a655e0ee02a4f9868459753e94ebf0d0c9766f51
202 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains a critical heuristic indicating exploitation of CVE-2017-0199, which is associated with weaponized URLs. The embedded URL http://almahalliah.com/order/elcarino.hta is likely the target of this exploit, intended to download and execute a second-stage payload. The presence of OLE object data further supports the exploitation of embedded objects within the RTF document.

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://almahalliah.com/order/elcarino.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_off00002744.bin rtf-objdata-decoded RTF \objdata at offset 0x2744 4664 bytes
SHA-256: 0578998349ef7d2674eee88deed4bc612b1b321db9e8b9f6a6fafab58571589f

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