Malicious RTF — malware analysis report

Static analysis result for SHA-256 f6e0c98df7619a8b…

MALICIOUS

RTF

46.7 KB Created: 2017-08-16 11:44:00 First seen: 2017-08-27
MD5: ba2cd07a92647d4d30579159f8a28d5c SHA-1: c53b460893b4c951e22ccb4fa15ad4fa6eed33ce SHA-256: f6e0c98df7619a8bc58ffc9715be7c0424d19618e7b6c5900e149b93cb55f18d
242 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains an OLE object that exploits CVE-2017-0199, a known vulnerability for remote code execution. The exploit targets the URL http://66.220.23.168/docs/help.rtf to download and likely execute a secondary payload. This indicates a malicious document designed to deliver further malware.

Heuristics 7

  • 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.
  • 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.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • 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://66.220.23.168/docs/help.rtf 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_off00002b72.bin rtf-objdata-decoded RTF \objdata at offset 0x2B72 5068 bytes
SHA-256: a4cffacef560d5e97e3585f38c7d7f34b5bc671e09e66eb0d8f41c7c742ea501

Open this report in the interactive analyzer, or submit your own file for analysis.