Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 02:26

General

  • Target

    d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.exe

  • Size

    2.1MB

  • MD5

    62a66a8f38b5d8c588710e33836ec461

  • SHA1

    fa4cae82470c0b230b9c78050b7634945289a7a9

  • SHA256

    d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09

  • SHA512

    2606ed96f63e6648d333b112290338797b163810fc73d938816cc265deb0c088d1ff73f2c4ffcab5d35a45248dd1619327b252386c6ac5b8e0c7278602e3a916

  • SSDEEP

    49152:32pqWm1Pyj+QqyNT5i4zOi3VqfbLt/RMhUK+F4axtxM:mptIqj+M1ffFrzk48DM

Malware Config

Extracted

Family

socks5systemz

C2

http://bgpuktw.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ec939233

http://bgpuktw.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12eab517aa5c96bd86e993854f885a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949938ce699e1e

Signatures

  • Detect Socks5Systemz Payload 4 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 19 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.exe
    "C:\Users\Admin\AppData\Local\Temp\d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\is-1BF7K.tmp\d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1BF7K.tmp\d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.tmp" /SL5="$60206,1793577,54272,C:\Users\Admin\AppData\Local\Temp\d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4208
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3200
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1984

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          2.1MB

          MD5

          3b5b40d48a9972cee08a162dfae96d05

          SHA1

          da274c0dafaa32c054dde1229623f97d3e50e499

          SHA256

          9556617a125e035789f5d500de74041dd384e61e7de74224047652e9f47cdd58

          SHA512

          127cd5d288964968aa97a360385d08d210df465da76f9ca391c5654068dd36d873d04b6264b3745f494cf2d06617bde9e5203d461bdfce84509ea8798b958927

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          1.4MB

          MD5

          1b1450527e92f78cfa89eb8f3b122259

          SHA1

          21d405a23f7a6e781501d0fa494e2a98504215fa

          SHA256

          a59a779f43b7b8af7387d70d9d452036e661e0d1015d7f33f10f72db69edf7fc

          SHA512

          f821ead662865ac91e79a19d59fe64ae52ae4a36f5e98ec60e6e86ec5a7af253150537090f3a230e29536ff96450abe60faf1667c59cb4bffd3c7a09497bc224

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          640KB

          MD5

          f43897bb1347819122f08493731b2683

          SHA1

          0899f880307031a58c75ace5d2d2df11a3d2d767

          SHA256

          0a74f25ed7e6b16a7d412c36c4ac265c33fbe3b10d6c7ab4bde3e1b9e57bc034

          SHA512

          315d35862e4a6086f5be1b60dd01a6520d92ca2102d0137c48398ee6f8d39443de22523adf69034dd06c85bfade109a289e29d99e5ddd319fe236d8d9c4a4f3b

        • C:\Users\Admin\AppData\Local\Temp\is-1BF7K.tmp\d3eed14b62ecea9cde96248df1c2d216c004c62c6e80287da6bd0b7d09952e09.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/1984-75-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-82-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-97-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-93-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-91-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/1984-90-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/1984-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-88-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-85-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-48-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-79-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-52-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-59-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-66-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/1984-72-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1984-76-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/3200-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3200-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3200-41-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3200-37-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4208-49-0x0000000002350000-0x0000000002351000-memory.dmp

          Filesize

          4KB

        • memory/4208-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4208-6-0x0000000002350000-0x0000000002351000-memory.dmp

          Filesize

          4KB

        • memory/4892-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4892-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB