Analysis

  • max time kernel
    146s
  • max time network
    153s
  • 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, 02:21

General

  • Target

    c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe

  • Size

    2.0MB

  • MD5

    fe4c1aa2eebc57c4d40a044e96f5d487

  • SHA1

    aa76ba4df9b79489d59d547e58720d015d6d2c98

  • SHA256

    c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2

  • SHA512

    c53cb703a60672c742d5a9b1d7c878d6780f6b76998204138c93286efd787b052a0b1c261fb2ebcbe7f73ecc2488f3a22a478e1d8660facd3ddd989808f06caa

  • SSDEEP

    49152:32AgRwW0LztkRUZpA6DTWt8C7G1lW2sKwTIAM:mUEUZ++2a1EfXM

Malware Config

Extracted

Family

socks5systemz

C2

http://erqucez.ua/search/?q=67e28dd86f5af1211209a81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978f071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ec969d3f

Signatures

  • Detect Socks5Systemz Payload 3 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\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe
    "C:\Users\Admin\AppData\Local\Temp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Users\Admin\AppData\Local\Temp\is-200UM.tmp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-200UM.tmp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.tmp" /SL5="$801CA,1762897,54272,C:\Users\Admin\AppData\Local\Temp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:972
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.3MB

          MD5

          98e068783ce97cab80bd4a4d2d64c7a6

          SHA1

          d20fe9b663f7da57963fd4c6d8cccd2c8d13215a

          SHA256

          aa65df8f318f37dbbe11fa4ba731ea61c43c069b5fcb89a7495c1172ee54d1b7

          SHA512

          ab385511124a42337db87108e5bf4b533017dd9a0381dd0b08ec70cb819a5a131bc15e02e98a4d0702bb3d022911534b9f8ceebbfd9c3eafe962758f07481f8e

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

          Filesize

          1.3MB

          MD5

          0d5126ad2627462b9fe82dde8bd6f7cd

          SHA1

          f71d9754c9fec46180b16ef25ba4b51be64c60bb

          SHA256

          f62468d9c1c6cccf9946b29ea178c1ae26257fb34c5411a1cc73f84bb36293bf

          SHA512

          03a2e6a0a3a6db9066c48b928285eac21faaf98ea91c4f5b66b1124bee4e6a4e2bb97371d1b098dc577199db5b82e32b15f4bea39a56e210bf04163cd521230c

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

          Filesize

          665KB

          MD5

          0d432f459309df7cfb9eb20638067123

          SHA1

          abfe747275ba67af9a138aeb8ef3774990893f7c

          SHA256

          8a19ee966c58587bb2f5835af9ebe2596e97087684848ef71c0b586713dc1292

          SHA512

          3e148eed8ae47ee6af8b1ae004efbc319aa137a866dade9b104a481dbc0fe45eeb189613401067793fae20350d13e2fb14ed512fd4558e6578179518302498f9

        • C:\Users\Admin\AppData\Local\Temp\is-200UM.tmp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/972-43-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/972-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/972-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/972-39-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1064-50-0x0000000000760000-0x0000000000761000-memory.dmp

          Filesize

          4KB

        • memory/1064-7-0x0000000000760000-0x0000000000761000-memory.dmp

          Filesize

          4KB

        • memory/1064-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1376-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1376-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1376-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2964-67-0x0000000000910000-0x00000000009B2000-memory.dmp

          Filesize

          648KB

        • memory/2964-68-0x0000000000910000-0x00000000009B2000-memory.dmp

          Filesize

          648KB

        • memory/2964-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-54-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-57-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-60-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-63-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-66-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-74-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-77-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-78-0x0000000000910000-0x00000000009B2000-memory.dmp

          Filesize

          648KB

        • memory/2964-81-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-84-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-87-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-90-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-94-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-97-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB