Malicious RTF — malware analysis report

Static analysis result for SHA-256 ae7093ef226f4293…

MALICIOUS

RTF

2.71 MB Created: 2017-07-31 17:43:00 First seen: 2017-08-08
MD5: a153630e8ef42063f284aa1ae899ffbc SHA-1: 617a343c1031513dd64f450f0795517647648685 SHA-256: ae7093ef226f4293bd5d3bf1bcd55b8432fb7a17bf685283804baeff48ced1f6
182 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an OLE object with a weaponized URL exploiting CVE-2017-0199. This URL, ftp://ppkcommy:8K9Y1nqlt8@ppk.com.my/httpdocs/css/template.hta, is used to download and execute a second-stage payload. The presence of excessive hex data within the OLE object further suggests the hiding of malicious content.

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.
  • 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.
  • Large hex data blocks in OLE object high RTF_EXCESSIVE_HEX
    RTF contains ~2802KB of hex-encoded data inside \objdata sections — may hide a payload
  • 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://themenalwayson.top/xoi/uag.php 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_off00002a5d.bin rtf-objdata-decoded RTF \objdata at offset 0x2A5D 4702 bytes
SHA-256: 1335eb30cf26536cf02fd71ae435c5dae78b8cc7ed84fe7469850d9c2a8a81d4

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