Malicious RTF — malware analysis report

Static analysis result for SHA-256 fe4279ba4165fd34…

MALICIOUS

RTF

124.8 KB Created: 2026-01-30 17:20:00 First seen: 2026-06-11
MD5: 132705d6c0d7e842be89d8ab50de4125 SHA-1: 410f004f9c5f52e7db5211b86b34b337ad2456b7 SHA-256: fe4279ba4165fd3494e0ae51e5557864b7d34f2dc7713815a143c5ba3b436a40
222 Risk Score

Heuristics 7

  • 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
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • 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_off0000c736.bin rtf-objdata-decoded RTF \objdata at offset 0xC736 2809 bytes
SHA-256: 6f742319c539b7addcc7e65ed90dfc51bb67acc862d1b794808b46aacd3795d2
objdata_01_off0000dde2.bin rtf-objdata-decoded RTF \objdata at offset 0xDDE2 2609 bytes
SHA-256: 824f1c364d21d6b527d49299d67c70ee165ce4bf03a7f09b9ca2cd57c8d2f4c1
objdata_02_off0000f3e3.bin rtf-objdata-decoded RTF \objdata at offset 0xF3E3 2609 bytes
SHA-256: f0d55f177c0ae1df502106243867a3de51c105a4f6a45b69288cc35c6bedc5dc
objdata_03_off00010999.bin rtf-objdata-decoded RTF \objdata at offset 0x10999 29044 bytes
SHA-256: 09287a551626fbb376f0d40893eb8dc359d22f56c42f4ab3d75e66ec31cf5c99

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