Malicious RTF — malware analysis report

Static analysis result for SHA-256 9d9d65f875b3d60f…

MALICIOUS

RTF

175.0 KB Created: 2015-05-12 09:49:00 First seen: 2017-11-13
MD5: 18dcd4a256f0bc220863f7632481fa3f SHA-1: 7005ce7d68d396cbe8e5816137214ae8f4815987 SHA-256: 9d9d65f875b3d60fb5d2cab2d87960e8d84473d5592675915d157ea1391f96f0
242 Risk Score

Malware Insights

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

The RTF document contains OLE object data and triggers critical heuristics for CVE-2017-8570 and ClamAV detection (Rtf.Exploit.CVE_2017_0199-6335035-0). This indicates the file is designed to exploit a known vulnerability to execute arbitrary code, likely by dropping and running a script. The document body itself is a seemingly benign internal university directive, suggesting the exploit is the primary malicious function.

Heuristics 7

  • 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.
  • 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://schemas.microsoft.com/office/word/2003/wordml In RTF body
    • https://mail.bsu.edu.ru/service/home/~/?auth=co&loc=ru&id=9909&part=2In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000b8e2.bin rtf-objdata-decoded RTF \objdata at offset 0xB8E2 3625 bytes
SHA-256: afb6af9a89b72150943c58713c21265d1c3dcdddab2a4963f8224a462c99330e

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