Malicious RTF — malware analysis report

Static analysis result for SHA-256 e136115ebdc6ed30…

MALICIOUS

RTF

698.2 KB Created: 2014-02-24 09:12:00 First seen: 2019-05-16
MD5: 893f8ce2f911d11fc369134aee5003ca SHA-1: 35246f3d12e880629a684bfaf9f13cfb3531d189 SHA-256: e136115ebdc6ed301e63d8005adedd315a2827b5402c269b6f5efcfb3638c246
302 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains OLE objects and exploits known vulnerabilities (CVE-2017-0199 and CVE-2017-8570) to download and execute a secondary payload. The embedded URL points to a suspicious XLS file, likely containing further malicious content or scripts. The document body appears to be a financial report, suggesting a lure for users to open and interact with the malicious content.

Heuristics 8

  • Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE related CVE_2017_8570
    RTF \objdata decodes to OLE data containing the Composite Moniker — CVE-2017-8570 (drops SCT script) CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
  • CVE-2017-0199 (OLE2Link / remote URL Moniker) critical CVE likely CVE_2017_0199
    RTF contains a URL Moniker OLE link whose decoded target is remote. Office can fetch and process the response through the CVE-2017-0199 OLE2Link attack path, but the server-side content type is not proven statically.
  • Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED
    RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
  • 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://www.pobedsp.volgodonskoiraion.ru/images/stories/01.10.2012.xls In RTF body
    • http://www.pobedsp.volgodonskoiraion.ru/images/stories/01.10.2012.xls+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_off000a2c85.bin rtf-objdata-decoded RTF \objdata at offset 0xA2C85 4137 bytes
SHA-256: d1e0020fd4f79699a32f0230ac7dcc5beb6a0e85414f5733b3b8b6c7a14c4c0c

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