Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-06-2024 18:09

General

  • Target

    c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.exe

  • Size

    5.0MB

  • MD5

    69392c54eba42a4bce4492cfd8d7a936

  • SHA1

    0cdaaf716111af270aac3c267ebc57b1ffd0a9a7

  • SHA256

    c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095

  • SHA512

    64a196ab342ef8cbd2281cdea34324e76a514c55e829971e05573632610b4fe3458ead46dca018a656af2f089e822134dcd805aaec147da6509726c63b9cb8a8

  • SSDEEP

    98304:mb1Wa27HSSp3ifx7VKcpnRA5FMFObLwVFtPVJbXsk:c1W7TF3ifLJnEFPwP18k

Malware Config

Extracted

Family

socks5systemz

C2

ejsqbsp.ua

http://ejsqbsp.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff719c2ef939a3e

http://ejsqbsp.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12eab517aa5c96bd86ee9d8649845a8bbc896c58e713bc90c91836b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9239cd699613

Signatures

  • Detect Socks5Systemz Payload 3 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.exe
    "C:\Users\Admin\AppData\Local\Temp\c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Users\Admin\AppData\Local\Temp\is-QDNE9.tmp\c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QDNE9.tmp\c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.tmp" /SL5="$4021A,4996649,54272,C:\Users\Admin\AppData\Local\Temp\c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5092
      • C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe
        "C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2224
      • C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe
        "C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4092

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe
    Filesize

    2.6MB

    MD5

    b8826fc6cd19bc6f8de055f59a412dac

    SHA1

    7ff69d9c54fbf5c918f1b019a8e4904aa98b5935

    SHA256

    78457a9e8fa938b80ad8e2b263733b754e8a666e47358c654234481ff8a3bfab

    SHA512

    b0b94a4c352525de771759ebd5c376c601d400ede9b9a13e86aedad44eacbc8c7e3df98ab8d0ebd15b3d5e2f4afdd31844082273769d0d6984b01e9b41a7c17a

  • C:\Users\Admin\AppData\Local\Temp\is-74JPG.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-QDNE9.tmp\c827093672a316522f1f5754b290bbd8b869ddfd71e2ca01ddad7533962e7095.tmp
    Filesize

    680KB

    MD5

    9c0c87dbb79871a4914149cd5acefbf8

    SHA1

    35627d4c709114e03240747deb05d154743ccb59

    SHA256

    0b29aab1bdbef4c1435541320b77e3a47d063f2cb0657018a918907d8ede18bf

    SHA512

    6608bfbf67b572584cd068ca60eb71fa972384f7c3cfa87011e82e5c15cb10332d4dcc6db23fc3153104dd635e6b2eb9e27d6eb08a07f4a396b04757a20080bd

  • memory/2224-59-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/2224-64-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/2224-61-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/2504-68-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2504-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2504-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4092-76-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-102-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-117-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-70-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-73-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-114-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-79-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-82-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-85-0x0000000002490000-0x0000000002532000-memory.dmp
    Filesize

    648KB

  • memory/4092-88-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-93-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-96-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-99-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-67-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-105-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-108-0x0000000000400000-0x0000000000691000-memory.dmp
    Filesize

    2.6MB

  • memory/4092-110-0x0000000002490000-0x0000000002532000-memory.dmp
    Filesize

    648KB

  • memory/4092-109-0x0000000002490000-0x0000000002532000-memory.dmp
    Filesize

    648KB

  • memory/5092-10-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/5092-69-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB