Malicious RTF — malware analysis report

Static analysis result for SHA-256 e259a810abb3aceb…

MALICIOUS

RTF

44.7 KB Created: 2018-05-18 02:44:00 First seen: 2019-01-12
MD5: cbbaf096019ed954422e04f4db1aaea8 SHA-1: df3d999c65b394eefcb9149dc7609c1c3979684a SHA-256: e259a810abb3acebae26d3cd813c33cc7e636472b0bace0933dd74dd863bf71e
142 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object with an automatically linked URL, identified as exploiting CVE-2017-0199. This exploit is used to download and execute a HTA file from 'http://dhm-mhn.com/ifeoma/htabl.hta'. The HTA file is likely a second-stage payload, indicating a downloader attack pattern.

Heuristics 5

  • 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.
  • 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://dhm-mhn.com/ifeoma/htabl.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_off000026e6.bin rtf-objdata-decoded RTF \objdata at offset 0x26E6 7468 bytes
SHA-256: b56492c82c32ee21237fec391576c8c106aff6aea8966407d6fcb6bf6843c9cb

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