Analysis

  • max time kernel
    150s
  • max time network
    151s
  • 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, 00:36

General

  • Target

    cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.exe

  • Size

    2.1MB

  • MD5

    406974e05e94b8586cff2ecf2e00d2de

  • SHA1

    1a57282797d06ee6091af015d5095506dd83a363

  • SHA256

    cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f

  • SHA512

    dce958396571fc00bfccd3f073b9f013e1017434ecc3d9f3b2bc55be1d30879ece524927b2a5110639daac95aadef83e04839dbca118aff6736e3cc0d7a23d82

  • SSDEEP

    49152:32cJU0UwraR8jxQo8fh4Sc8jSwVrok7EKfQmgkoaM:maUwrZWNfh28jVrtEKIrIM

Malware Config

Extracted

Family

socks5systemz

C2

http://ejbvfxb.ua/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f671ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c2e895923a

http://ejbvfxb.ua/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12eab517aa5c96bd86e490874896148ab2865b77f80ebad9cc0f7cb63037ed2ab423a4334383ba915d911ec07bb106a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1ee96983ccd6797

Signatures

  • Detect Socks5Systemz Payload 5 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\cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.exe
    "C:\Users\Admin\AppData\Local\Temp\cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4852
    • C:\Users\Admin\AppData\Local\Temp\is-6V5S3.tmp\cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6V5S3.tmp\cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.tmp" /SL5="$7011A,1806141,54272,C:\Users\Admin\AppData\Local\Temp\cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4856
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3916
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.7MB

          MD5

          31d54362a15685407dc9865b951798e8

          SHA1

          6accb01867a29675f47501f39a1e018ef778ce32

          SHA256

          97d2e0d65e270dfc407988f936bfbec0633f52b39330c2ee49aa39476c1079ff

          SHA512

          3f07429052f665ed8208450376eda27c6ba1523838a6c6837af2a9b260feb79492857333d231a7632291a625e378f08fa8fde2534c1b6568e6b5bc22454511b2

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

          Filesize

          896KB

          MD5

          2ebdcdff01a694c3eafaf97bcda4a617

          SHA1

          12d0902354339a506cdad568b7b1966f9d238286

          SHA256

          5c6d81f1580224eaf87d545cd1a48069a7465f0e922d989f7db9cdd1bfa03cd5

          SHA512

          f1254f6d5c1c99457f1ada631bd5612edab9d7db6456854fa7d82ba38adb4018068c8b00c584720d7db7fce4328995f79663304d186c3c4aea4771323bab5076

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

          Filesize

          806KB

          MD5

          a3b0fbb6216a1e25233da54a9e7b9601

          SHA1

          17b1cadedaa84a564d19c7a3888773790dadf2d7

          SHA256

          bba80b0ffc2d4c7a25169dcba1d9ec221c07b17c95b8ac162763d1e246b1959c

          SHA512

          f53f881a7f0598afe7094226201543046b0a478f2bc10ce2bd8c71330e0095b12371fdb76057ef8152c4402b73f244559b93e0cb25ff61f2c4d1e5792bfdd756

        • C:\Users\Admin\AppData\Local\Temp\is-6V5S3.tmp\cb8f045facd1167c5f65844bfc78f3facf57ed4c82cb9aaea9342d2666feba2f.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • C:\Users\Admin\AppData\Local\Temp\is-JM27A.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/2588-54-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-78-0x00000000008A0000-0x0000000000942000-memory.dmp

          Filesize

          648KB

        • memory/2588-99-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-96-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-92-0x00000000008A0000-0x0000000000942000-memory.dmp

          Filesize

          648KB

        • memory/2588-91-0x00000000008A0000-0x0000000000942000-memory.dmp

          Filesize

          648KB

        • memory/2588-90-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-87-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-84-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-81-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-52-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-77-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-57-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-60-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-63-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-65-0x00000000008A0000-0x0000000000942000-memory.dmp

          Filesize

          648KB

        • memory/2588-68-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-69-0x00000000008A0000-0x0000000000942000-memory.dmp

          Filesize

          648KB

        • memory/2588-74-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3916-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3916-39-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3916-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3916-43-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4852-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4852-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4852-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4856-50-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/4856-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4856-7-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB