Malicious RTF — malware analysis report

Static analysis result for SHA-256 49d3b51e1213b492…

MALICIOUS

RTF

43.4 KB Created: 2017-10-30 14:06:00 First seen: 2017-11-13
MD5: 3b683fe74bee952befc503ce2df6c060 SHA-1: c28b477a5460d5ae2ccd40cab46e76b99105ffa1 SHA-256: 49d3b51e1213b492ca30c93dfe1c158f2531ff57e333b0c63b6405bb4736b331
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, a known vulnerability for client execution. The exploit directs the user to download and execute a HTA payload from the URL http://wizkiddz.xyz/donbaba/htamandela.hta. This indicates a likely spearphishing attachment used to deliver a secondary payload.

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://wizkiddz.xyz/donbaba/htamandela.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_off000026a2.bin rtf-objdata-decoded RTF \objdata at offset 0x26A2 4664 bytes
SHA-256: 576eb5fda673651148425a287391ba7132530d3993b16357f6da99fb343ec747

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