Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    27/05/2026, 16:54

General

  • Target
    2026-05-27_66bcf9fd1d3592075ec2c1f4e73d1c6c_elex_mimic_pay2key_wannacry.exe
  • Size 8.5MB
  • Sample260527-vehsfaft7y
  • SHA256 14f521f5a884d7fda7c5844fd2893334386f28a815925fe1f1d5ec24915140de
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 2 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 64 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-27_66bcf9fd1d3592075ec2c1f4e73d1c6c_elex_mimic_pay2key_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-27_66bcf9fd1d3592075ec2c1f4e73d1c6c_elex_mimic_pay2key_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\x64.exe
      "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\x64.exe" /S
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\@echo off.cmd" "/S""
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4812
        • C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\7z2408-x64.exe
          7z2408-x64.exe /S
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          PID:5000
        • C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\xDark.exe
          xDark.exe /S
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          PID:464
        • C:\Windows\SysWOW64\regedit.exe
          Regedit.exe /s 7zipFileAssoc.reg
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Runs .reg file with regedit
          PID:2736

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7-zip.chm

        • Path C:\Program Files\7-Zip\7-zip.chm
        • Size 117KB
        • SHA256 f830ddc5280d00e1cb160f9e5dd114292d5efef66c23c3c03c224894250bac2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll

        • Path C:\Program Files\7-Zip\7-zip.dll
        • Size 99KB
        • SHA256 f972b164d9a90821be0ea2f46da84dd65f85cd0f29cd1abba0c8e9a7d0140902
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip32.dll

        • Path C:\Program Files\7-Zip\7-zip32.dll
        • Size 65KB
        • SHA256 96313194a8ace0d6fbe037dde8c85d1430a5fb1d8cc62e68bdf41fe2e838f440
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.dll

        • Path C:\Program Files\7-Zip\7z.dll
        • Size 4.0MB
        • SHA256 bddccb3fe04484ee467a3b95baadcbcd9c99f9f6ec75bd3858a1ac5d50cf72e7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 549KB
        • SHA256 707f415d7d581edd9bce99a0429ad4629d3be0316c329e8b9ebd576f7ab50b71
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.sfx

        • Path C:\Program Files\7-Zip\7z.sfx
        • Size 210KB
        • SHA256 6b57604755bd4410a4f1adbce90498e205f4255c5786d5c4ddb34327c161b125
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7zCon.sfx

        • Path C:\Program Files\7-Zip\7zCon.sfx
        • Size 189KB
        • SHA256 062c989ac695cfafdb4c83a8517b2f6716e1a8a1255360f01a49216c4a21884b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7zFM.exe

        • Path C:\Program Files\7-Zip\7zFM.exe
        • Size 1017KB
        • SHA256 01f8e98fea3159438f633d055cc2ff4ac4a3f654c6455e7754961572b1ed97bf
        • MD5 SHA1 SHA512 SSDEEP

        7zG.exe

        • Path C:\Program Files\7-Zip\7zG.exe
        • Size 692KB
        • SHA256 0163ec83208b4902a2846de998a915de1b9e72aba33d98d5c8a14a8fbf0f6101
        • MD5 SHA1 SHA512 SSDEEP TLSH

        x64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\x64.exe
        • Size 4.6MB
        • SHA256 2f8b2ff0e357be61c209564d68e3601af48f52cd150d76897a06d24dc4c61afe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z2408-x64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\7z2408-x64.exe
        • Size 1.5MB
        • SHA256 67cb9d3452c9dd974b04f4a5fd842dbcba8184f2344ff72e3662d7cdb68b099b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7zipFileAssoc.reg

        • Path C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\7zipFileAssoc.reg
        • Size 9KB
        • SHA256 9fe4a4c8b5771559ead07d3d49bf158930ab7130f49dfb80592c815973c7a9a9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        @echo off.cmd

        • Path C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\@echo off.cmd
        • Size 680B
        • SHA256 272714a4268feebe578eb1e711f218770b22c816ecb204a39f13424fa0d208b6
        • MD5 SHA1 SHA512 TLSH

        xDark.exe

        • Path C:\Users\Admin\AppData\Local\Temp\~sfx0051A02001\xDark.exe
        • Size 3.0MB
        • SHA256 0fdfa72bf2167be3d3b6174163985a44941fc8e96d884a3bf78aad4ff905059d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/464-279-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/2160-282-0x0000000000400000-0x0000000000E30000-memory.dmp

        memory/2300-0-0x0000000000400000-0x000000000042B000-memory.dmp

        memory/2300-284-0x0000000000400000-0x000000000042B000-memory.dmp