Analysis

  • max time kernel
    141s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 11:11

General

  • Target

    ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.exe

  • Size

    2.2MB

  • MD5

    9357e67e1024655f3302a794adc9c8da

  • SHA1

    ed8eb9f4da01fd739d21e8684e95bd381e103402

  • SHA256

    ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4

  • SHA512

    c55f0e44cf043351a70dd7fa2338aefbb0f66cd243f0bd959cc38e076a7c0b6593b65fbdd89d0c17be0b84d5fc4fbe07fed90c9ce1bbcb19e2509551dbcd7b2e

  • SSDEEP

    49152:32Q41RVpy6V66wEMgH09q+rPkhP9UsqcbKXQoWWoE587rYrNr6e7D:mQK8V6jk3Pkd9zzWZ8nYrNuc

Malware Config

Extracted

Family

socks5systemz

C2

http://bvybjto.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9ed969239

http://bvybjto.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12eab517aa5c96bd86e891804b875a8bbc896c58e713bc90c91c36b5281fc235a925ed3e07d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949b32cf6c9e14

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • 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\ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.exe
    "C:\Users\Admin\AppData\Local\Temp\ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3204
    • C:\Users\Admin\AppData\Local\Temp\is-0DA1T.tmp\ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0DA1T.tmp\ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.tmp" /SL5="$5017C,1972866,54272,C:\Users\Admin\AppData\Local\Temp\ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4308
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5108

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          513KB

          MD5

          3b82e64cf44f72a0a3ba147fafb0217c

          SHA1

          7fd9459f273ff73b6dae8d355b4ca36aeca5c1bf

          SHA256

          8ab54cd3ecf25b2355f931a27298fc563d4b082d5c33f63841dbc02519c1e099

          SHA512

          50759b0229b741f286b04540e30322af6decb94ac646c162b65850ea58465f5f38f9d0ab5c1f7e678e095265dd415ee90d8622953562b419a928e929dd7253a1

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

          Filesize

          2.2MB

          MD5

          db2e42972e6f72f623ec6cadf8180747

          SHA1

          be60e50f957eb7d9c88f52e234671701fc8fc7a0

          SHA256

          d029b6e530502459f455078d89c15ec6183085550d839a1b7cb4fa274bded45d

          SHA512

          ce8f3bc9f10f588472c936d8163427bc123a15c49d95533b0707faa146cec89f5f525be8ad7cd3a6b8459c4db4561fd8273908884e1420e1ef4251eaa9ec1dd8

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

          Filesize

          1.3MB

          MD5

          6c956fadedd9d1f8bd868c27bb910645

          SHA1

          12099f5bb6a7a802542181cb5828a9bf9d77f62a

          SHA256

          740b00c9d3dd8cc067a8ac798dc71111c4bf615c6361e383d777c77778433df4

          SHA512

          508b88ba70d2905c0e0ea6a8e177326145cfedc0ba8bd7cc12f2f481b8f1050d1a3f9f12ba51264175ba47746815f548775516d36ebd73009aa274fa9af940f8

        • C:\Users\Admin\AppData\Local\Temp\is-0DA1T.tmp\ee094b47e9e3bb7ba12d171bce953b0511b9fa3c8e5deb3d2662078bc72ad9c4.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • C:\Users\Admin\AppData\Local\Temp\is-DRQ59.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/3204-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3204-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3204-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4268-7-0x0000000002450000-0x0000000002451000-memory.dmp

          Filesize

          4KB

        • memory/4268-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4268-51-0x0000000002450000-0x0000000002451000-memory.dmp

          Filesize

          4KB

        • memory/4308-39-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4308-43-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4308-42-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4308-38-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-52-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-75-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-47-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-46-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-55-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-58-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-61-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-64-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-65-0x0000000000970000-0x0000000000A12000-memory.dmp

          Filesize

          648KB

        • memory/5108-69-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-70-0x0000000000970000-0x0000000000A12000-memory.dmp

          Filesize

          648KB

        • memory/5108-50-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-78-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-79-0x0000000000970000-0x0000000000A12000-memory.dmp

          Filesize

          648KB

        • memory/5108-82-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-85-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-88-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-91-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-92-0x0000000000970000-0x0000000000A12000-memory.dmp

          Filesize

          648KB

        • memory/5108-93-0x0000000000970000-0x0000000000A12000-memory.dmp

          Filesize

          648KB

        • memory/5108-97-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/5108-100-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB