Malicious RTF — malware analysis report

Static analysis result for SHA-256 9a9ad7268d90fb40…

MALICIOUS

RTF

131.4 KB Created: 2026-01-29 07:46:00 First seen: 2026-06-24
MD5: 82e7dc3e75be7eac34e53342c38867c2 SHA-1: ea1cf0cc73861bb2aaa3cc857a964dff1d6ce271 SHA-256: 9a9ad7268d90fb408b931976453427846f23092e941deeef0ec45ff64fcfd453
202 Risk Score

Malware Insights

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

The RTF file contains multiple critical heuristic firings indicating exploitation of CVE-2026-21509 and CVE-2026-21514, which are known vulnerabilities for client execution. The presence of an embedded URL, http://192.168.217.250/scr2.rss, suggests a download mechanism for a secondary payload. The document body contains unrelated questions in Ukrainian, indicating it is likely a lure unrelated to the malicious functionality.

Heuristics 6

  • CVE-2026-21509 — Shell.Explorer.1 CLSID in RTF critical CVE related CVE_2026_21509
    RTF document contains the Shell.Explorer.1 CLSID {EAB22AC3-30C1-11CF-A7EB-0000C05BAE0B} associated with CVE-2026-21509 (OLE/COM Killbit / Protected View bypass). Actively exploited in the wild.
  • CVE-2026-21514 — Word/OLE security bypass in RTF high CVE likely CVE_2026_21514
    RTF document contains an embedded Word package with a webSettings frame relationship to a local Windows diagnostics XML target. That matches observed CVE-2026-21514 exploitation, where crafted Word/OLE metadata bypasses Office security decisions when opened.
  • ClamAV: Win.Exploit.CVE_2026_21514-10059348-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Exploit.CVE_2026_21514-10059348-0
  • OLE object data medium RTF_OBJDATA
    RTF contains 4 \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://192.168.217.250/scr2.rss In RTF body
    • http://schemas.microsoft.com/office/word/2003/wordmlIn RTF body

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0000e20a.bin rtf-objdata-decoded RTF \objdata at offset 0xE20A 2809 bytes
SHA-256: ee106379c77ffb03d960d29e2326c88193a800b12f76846983552efcf0aaceb0
objdata_01_off0000f858.bin rtf-objdata-decoded RTF \objdata at offset 0xF858 2609 bytes
SHA-256: 6991a2bbe8648ec468a7def0a3db25d9eec28cf62484ddd779b7906961e1fc33
objdata_02_off00010dfb.bin rtf-objdata-decoded RTF \objdata at offset 0x10DFB 2609 bytes
SHA-256: 816c4010751ef36d518599f8c6ece6367b0be6a6e5e290751759bf329dc817dc
objdata_03_off000123b1.bin rtf-objdata-decoded RTF \objdata at offset 0x123B1 29044 bytes
SHA-256: 09287a551626fbb376f0d40893eb8dc359d22f56c42f4ab3d75e66ec31cf5c99

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