Analysis

  • max time kernel
    150s
  • max time network
    155s
  • 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, 02:19

General

  • Target

    acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe

  • Size

    2.1MB

  • MD5

    641f8516e40cd57175e08290cb569e8f

  • SHA1

    8660b99ea39ecee95cdaf6de87d6db1fb6f6184b

  • SHA256

    acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947

  • SHA512

    73eacb2fd659ff803ec850bf9feb431d9b456b6224ab052da8a60da9517b9b998a30165a7c8926365b78efe8e36d1dce2ac7bacec29bb9fa07eb7a63ab64228b

  • SSDEEP

    49152:320rxrsX/GZZlreAilqYVPkCwA4hd74RjsXdHk791O/vVpYaFhgC9M:mgS/kZlre9kYVMCvAwjMmHm//M

Malware Config

Extracted

Family

socks5systemz

C2

http://ayrfwli.ru/search/?q=67e28dd83e08a72b4108ad4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ec97993c

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 20 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\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe
    "C:\Users\Admin\AppData\Local\Temp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Users\Admin\AppData\Local\Temp\is-N7IJ7.tmp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-N7IJ7.tmp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.tmp" /SL5="$B0062,1854051,54272,C:\Users\Admin\AppData\Local\Temp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3396
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3224
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3636

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

          a0442a3ee5560ac72150b3ec3ab0859e

          SHA1

          242561c773ae3209fec6c13db2585c726db8a2f5

          SHA256

          c366fd01dc885a63bcefcc3932cfb73bcb087843a026addebfd5164f6cbdb8d4

          SHA512

          710320eb7c9eb1e7df44c035d35f3d075faae243eb0b157db617662a0eac8fc426432f1aa3d4b49d21f2f1aae8fabd81284b19a5497456dbe6c05b393d8ecae7

        • C:\Users\Admin\AppData\Local\Temp\is-N7IJ7.tmp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/404-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/404-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/404-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3224-43-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3224-39-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3224-42-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3224-38-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3396-50-0x00000000005D0000-0x00000000005D1000-memory.dmp

          Filesize

          4KB

        • memory/3396-7-0x00000000005D0000-0x00000000005D1000-memory.dmp

          Filesize

          4KB

        • memory/3396-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/3636-54-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-68-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/3636-53-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-46-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-55-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-58-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-61-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-64-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-67-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-49-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-69-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/3636-75-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-78-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-79-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/3636-82-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-85-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-88-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-91-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-95-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3636-98-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB