Analysis

  • max time kernel
    141s
  • max time network
    128s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03/08/2024, 15:41

General

  • Target

    a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.exe

  • Size

    4.0MB

  • MD5

    6e1e4b2fb343492aac9426d01f5df07b

  • SHA1

    20bad41b1d9cd24c629e97c86f4e6d4468d374e5

  • SHA256

    a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2

  • SHA512

    425b448fe13f3ae0f2b0627145e6c6ec5ad60cf0f1ff5cacef6a51d132cadf53f900a3a7136ad6b9aca991d693addc60e7fdd2f96b1ea647128d50ad61127047

  • SSDEEP

    98304:NSFRjS+znm6xkcn0xIoKieASiyrQMYffsTn0aqJm24OdU:4FRc6qZOPDtiwQv8rZ8qOW

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.exe
    "C:\Users\Admin\AppData\Local\Temp\a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:872
    • C:\Users\Admin\AppData\Local\Temp\is-JTMSE.tmp\a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JTMSE.tmp\a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.tmp" /SL5="$8005E,3922260,54272,C:\Users\Admin\AppData\Local\Temp\a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3904
      • C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
        "C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2092
      • C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
        "C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2400

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

          Filesize

          4.5MB

          MD5

          2261a563bfff6e976869811fb7a1cf14

          SHA1

          454e427c9861fa8bfa2bf3609599134d7167207c

          SHA256

          882fa0179b2c4881604d2102853ae30332a1d2880b020a1c3ed8ad13e9b88f22

          SHA512

          eca49a363576f3aea481006f5cef57bf48d7652abc2bcf958ded77b2f60fca83cd7080064992240dfd3b9cfe1a7b74b0827e4a41942014ea918b55db472d733e

        • C:\Users\Admin\AppData\Local\Temp\is-GIF3K.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-JTMSE.tmp\a1b8e777c790f1e1d041ce22d4c941046f90785a4ae25228e741e4bd433ba2a2.tmp

          Filesize

          692KB

          MD5

          78800d81ba6ad634d25059847cfb1baa

          SHA1

          022982bc0d006b40299bd553653970acb4718682

          SHA256

          24a25380d33d0cf52686906e1272d13c3d467307ec7194e1186cab6f3aa3af69

          SHA512

          83ffff319f2d910d001af4900098e8857dc9c4bd592e60b27ffdb0b49f9c8e1922ef61bfcdbebe9c1a37a7339a00ac98f05cba3d41f580513cb6971bcffd23a8

        • memory/872-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/872-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/872-60-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2092-52-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2092-54-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2092-55-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-68-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-94-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-109-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-62-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-65-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-106-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-71-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-74-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-77-0x00000000026A0000-0x0000000002742000-memory.dmp

          Filesize

          648KB

        • memory/2400-80-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-85-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-88-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-91-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-59-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-97-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-100-0x0000000000400000-0x000000000088B000-memory.dmp

          Filesize

          4.5MB

        • memory/2400-101-0x00000000026A0000-0x0000000002742000-memory.dmp

          Filesize

          648KB

        • memory/2400-102-0x00000000026A0000-0x0000000002742000-memory.dmp

          Filesize

          648KB

        • memory/3904-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3904-61-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB