Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 09:51

General

  • Target
    2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe
  • Size 2.4MB
  • Sample261027-lvf44ss1ay
  • SHA256 61c509b6f2b9b6911b6f9cea57270d74d2731955752d21dc8112c79ac254174e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a2438.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3356
      • C:\Users\Admin\AppData\Local\Temp\2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe"
        3⤵
        • Executes dropped EXE
        PID:3032
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2368
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4240
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4308

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        MicrosoftEdgeUpdate.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.185.27\MicrosoftEdgeUpdate.exe
        • Size 230KB
        • SHA256 fa6efa7261bbf59a0c71004db6dff9a43f999cf17573b1a7fe26d1b50ad5a114
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VC_redist.x64.exe

        • Path C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe
        • Size 663KB
        • SHA256 8d4d48168a7d52f1e1c53e6355b9b76a262458330d8616792dc87695cc45a72d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a2438.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a2438.bat
        • Size 746B
        • SHA256 72de6e717259a6eee642e7ad68eacb69365e36c7bcc5c5758e76a10305fa8c88
        • MD5 SHA1 SHA512 TLSH

        2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-10-26_a8739869904c6ae1db5b21a61b65a4ec_akira_cobalt-strike_elex.exe.exe
        • Size 2.4MB
        • SHA256 0a928e3d032a058d65c233f4b94dd91eabe41f92527ddea5b632768a8514a8fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rundl132.exe

        • Path C:\Windows\rundl132.exe
        • Size 29KB
        • SHA256 0dc900bd4fd16132c8b5853dfffc23edf060349a33a5b214873f314b88d091c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\_desktop.ini
        • Size 10B
        • SHA256 429d13db37d4bb1357cb28a091ed6f6ce018fbc952452c34f11de1e40dcb3a59
        • MD5 SHA1 SHA512

        memory/1736-0-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/1736-13-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-31-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-36-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-40-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-92-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-1247-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-23-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-5042-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-10-0x0000000000400000-0x0000000000436000-memory.dmp

        memory/2368-5515-0x0000000000400000-0x0000000000436000-memory.dmp