Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2024, 21:33

General

  • Target

    194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe

  • Size

    4.5MB

  • MD5

    2ca0165beea1185ce89a4afa49451f8d

  • SHA1

    ea4a9d016d482d8dca72db8fcc5f000cc19c7e9f

  • SHA256

    194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195

  • SHA512

    47cf343a136ce1ecf09d646362bc7061974ca5d5e8d090f7fb70e7203e515b6048b7af323803975ac68b2a010b1bbca3ce32b5e0e15fc2956e7cb64c74bad7c7

  • SSDEEP

    98304:NR8KFD3QNl8tcjxmJqflylwKg1/kO+QUOjUqTCbfmW+3nNrKtdJ:v820/8tc8qfl6wjt+QUOXTW+3nNmtD

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe
    "C:\Users\Admin\AppData\Local\Temp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\is-5Q6P2.tmp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-5Q6P2.tmp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp" /SL5="$1B0054,4397069,54272,C:\Users\Admin\AppData\Local\Temp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.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:4140
      • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
        "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:232
      • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
        "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3956

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe

          Filesize

          4.1MB

          MD5

          292e2bea8bd4f1c3a70314505561d3e0

          SHA1

          52b8e4151c1864581134535ad4b65eba05d381b8

          SHA256

          97b8a7ce5d45c6f9aee23b740d73289f9d454276097946b9edebe1e81ad8688b

          SHA512

          a04785ad6819e48b0327c3d3c437d6723afe2b0f84da11b6cad6eb77de15c20b746899639b7c87355801147265fc5fa46eb8c71305b8c76388ffc13c602c1638

        • C:\Users\Admin\AppData\Local\Temp\is-5Q6P2.tmp\194cddc81383f5a6cdd2a1ea63cc77d58b276380371caa43dc2f6b5db805c195.tmp

          Filesize

          692KB

          MD5

          85fc5b8836d8625fbfa40a092386e645

          SHA1

          a90bb83f5d8d024bb357a44682267a50406071d6

          SHA256

          6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950

          SHA512

          c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae

        • C:\Users\Admin\AppData\Local\Temp\is-HL742.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-HL742.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • memory/232-57-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/232-59-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/232-63-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/232-62-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/2400-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2400-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/2400-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3956-69-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-86-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-113-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-110-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-72-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-75-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-78-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-81-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-84-0x0000000000AC0000-0x0000000000B62000-memory.dmp

          Filesize

          648KB

        • memory/3956-66-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-91-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-94-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-97-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-100-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-103-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/3956-106-0x0000000000400000-0x0000000000813000-memory.dmp

          Filesize

          4.1MB

        • memory/4140-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4140-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB