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
    25-06-2024 01:52

General

  • Target

    f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.exe

  • Size

    4.9MB

  • MD5

    b310ac9b897a404f025efe6f3d56755a

  • SHA1

    b9b9b2d41cb09aa5d39248c082ac219727dfe3d3

  • SHA256

    f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe

  • SHA512

    b6ccb85d509ec6eff0f65139625c4db7bf775ed04b6f94a93703a88f4351990177b444b0b3129373702a9135da91a78be5bd1073ff3082f63954b42455283685

  • SSDEEP

    98304:mtQDNbjRcuygy0by4h43lMJs3MwL5e8uRykcH+zoQs6eoOvAGP1elAiRCnp:F5Rc3OrEMJK5gqjQsHouPoeACp

Malware Config

Extracted

Family

socks5systemz

C2

ebewwgi.ua

http://ebewwgi.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff613c8ef919932

Signatures

  • Detect Socks5Systemz Payload 4 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\f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.exe
    "C:\Users\Admin\AppData\Local\Temp\f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Users\Admin\AppData\Local\Temp\is-UO9BM.tmp\f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UO9BM.tmp\f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.tmp" /SL5="$4022E,4913475,54272,C:\Users\Admin\AppData\Local\Temp\f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:240
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3224
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-SD5R4.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-UO9BM.tmp\f32fad9ce5cf04d55d2b7bba03f3950afe442be0d458d6b7f309f91e71f42dfe.tmp

    Filesize

    680KB

    MD5

    fc1760e726bc3cd3643815ea2c8077fd

    SHA1

    0e7906081387d1b5ed881d8f1976b4f4f8fefff9

    SHA256

    e5f3254f1c5a55c98357632ab034e3567676c6a6ee7584c4b17bae70427a21f3

    SHA512

    08cb70fb426f043aa86da98d8e90519a0356dfcbbd0259f6cdbcbcdff9dc1e2f70af79d64f7fa9abff665d0d2f3a1f9a8a8f8a3edbd73226a3dc1252651d2b4a

  • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

    Filesize

    2.9MB

    MD5

    63a60328d83d85c5f44811d22524210c

    SHA1

    e061cf2c01edc8b49ebaa961b9c71145b86120c3

    SHA256

    de29c1ae12c9bb3793f8a7996d85a0bc023b5e35da5401853ac53eeac8624617

    SHA512

    69100bdf70d41771fa3b8d0e39db9d1ef9bf030f6a8bd31b01b1965f9a8099e8f63a6ec2140c60ac9c86c7f66be03b242b117912e2a1437c6c6914e51c408cb1

  • memory/240-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/240-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2032-102-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-76-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-121-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-118-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-114-0x00000000009E0000-0x0000000000A82000-memory.dmp

    Filesize

    648KB

  • memory/2032-68-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-69-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-113-0x00000000009E0000-0x0000000000A82000-memory.dmp

    Filesize

    648KB

  • memory/2032-112-0x00000000009E0000-0x0000000000A82000-memory.dmp

    Filesize

    648KB

  • memory/2032-72-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-75-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-108-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-79-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-82-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-85-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-88-0x00000000009E0000-0x0000000000A82000-memory.dmp

    Filesize

    648KB

  • memory/2032-90-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-96-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-99-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-111-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2032-105-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/2540-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2540-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2540-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3224-59-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/3224-65-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/3224-63-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB

  • memory/3224-60-0x0000000000400000-0x00000000006EE000-memory.dmp

    Filesize

    2.9MB