Malicious RTF — malware analysis report

Static analysis result for SHA-256 318ea263cf1a6fce…

MALICIOUS

RTF

43.3 KB Created: 2017-09-05 12:27:00 First seen: 2017-09-14
MD5: fc802e922cafc295cb03868cdc897464 SHA-1: 049cae8a12af7795ff2dff739df19a19cda69b20 SHA-256: 318ea263cf1a6fce193a70eb3030612d56a3624770e88e32f1fe781596898933
202 Risk Score

Malware Insights

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

The RTF file contains an OLE object that is automatically linked and weaponized to exploit CVE-2017-0199. This exploit targets a vulnerability that allows for the download and execution of a remote HTA file from the URL https://dev.null.vg/c1S1MTo.hta. The embedded OLE object and the detected exploit indicate a high likelihood of malicious intent, likely as a delivery mechanism for further compromise.

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 https://dev.null.vg/c1S1MTo.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_off00002748.bin rtf-objdata-decoded RTF \objdata at offset 0x2748 4664 bytes
SHA-256: c2e6de38f3964b131725d4dae22e698a5645619824b508b0a4123fd9f8f46283

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