Analysis

  • max time kernel
    147s
  • max time network
    156s
  • 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, 01:49

General

  • Target

    24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.exe

  • Size

    2.0MB

  • MD5

    587a7d1a4bba6440512fd5e0c1335f8d

  • SHA1

    9a51b01a79c54e4c75a84e5adbbb5fc55e0c6306

  • SHA256

    24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c

  • SHA512

    7f2a3e4ce40b49150abf66752e74062d85da8754447b5b6cd23c83d48d2a500c614f58eab4e52d43069c8f0be3ee7c0c9a0a6b972c24ccd05dcfc0c6b7df9107

  • SSDEEP

    49152:32SWtN598t4X2HVLbkidv6DqFG25GpshOwSNmhdFwWHM:mSfrm8vEq2pshFOeM

Malware Config

Extracted

Family

socks5systemz

C2

http://csufduz.net/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c647db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ee919d3c

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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.exe
    "C:\Users\Admin\AppData\Local\Temp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Local\Temp\is-VSPD7.tmp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VSPD7.tmp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.tmp" /SL5="$90170,1748293,54272,C:\Users\Admin\AppData\Local\Temp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2148
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3016

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.0MB

          MD5

          871fd344700785c54d1bf670315fb68c

          SHA1

          a7b83a9961ae703a642a06aa9e0c669d4641dfe9

          SHA256

          fdc767beb7a18a284c43a49fdf13bf4b97d44e7a593fbdcaa9fec31f42549255

          SHA512

          c5248d45f759def945a4040ffd3c13699af8630daf93aef73a8e5e8b93854209285ee89bac8110d47b85d4cd34bbe9285518cde2d50fc05f292d488af7e6bab5

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

          Filesize

          640KB

          MD5

          5f8a03ea8adf5efe286cb7da1a58f792

          SHA1

          f0d2acc2f4146d1ce1cb320479f2a21267a996bf

          SHA256

          1a5e0942cc8a974ff720a02513461976d6bbc52e53d3a2368f61f00c81af2e04

          SHA512

          1f04c5a17caf72ea90874d827e77cb5b086c8b9f41471ba25fba15564f01c6267d4f431ca4f584bb48656d49658743ab81804df56df9d4166080ee361635b413

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

          Filesize

          832KB

          MD5

          fdc76c67c4faa0d42c166e55c294fad9

          SHA1

          5939f288154000d3441a89693dbf5b108e9822c4

          SHA256

          27741039681ac3bac3e0a2c59e620490b970ec40e3ef8ebb52c24238b73b3777

          SHA512

          7fbbdbcbb04f5dd55c589a6d5a6690d1c912ac2e023dab3b416716d84cbb6d25183f263c9abaffb03b1c5810dac5c38f4f9484d24d6309d9c420b67f17a487d8

        • C:\Users\Admin\AppData\Local\Temp\is-8GQ7E.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-VSPD7.tmp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.tmp

          Filesize

          116KB

          MD5

          bdd051f7becf053e4ecfe45db3dc23d8

          SHA1

          28511d9b523c8ff025b1d605aa3e7f562220170e

          SHA256

          88cac6e81dab8de9b51b78a422175cdb4967e968b9c1bdeb3c548778292edbd3

          SHA512

          30fc60eefc986f46099cd3ef8081a90922f80412efe06afcafabf0bc92fdc335872666582560447de434a544d0ecdbba44eb1e06902efd744af404fef2daba36

        • C:\Users\Admin\AppData\Local\Temp\is-VSPD7.tmp\24a64d449fe06c1eee91a38bcbfcbc925dc4b8edf641d61a4dc44845e604781c.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/2148-43-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/2148-39-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/2148-38-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/2148-40-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/2232-51-0x0000000000660000-0x0000000000661000-memory.dmp

          Filesize

          4KB

        • memory/2232-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2232-7-0x0000000000660000-0x0000000000661000-memory.dmp

          Filesize

          4KB

        • memory/3016-64-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-58-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-98-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-45-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-50-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-94-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-54-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-70-0x0000000000960000-0x0000000000A02000-memory.dmp

          Filesize

          648KB

        • memory/3016-67-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-61-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-47-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-91-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-55-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-69-0x0000000000960000-0x0000000000A02000-memory.dmp

          Filesize

          648KB

        • memory/3016-75-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-78-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-81-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-82-0x0000000000960000-0x0000000000A02000-memory.dmp

          Filesize

          648KB

        • memory/3016-85-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/3016-88-0x0000000000400000-0x000000000060D000-memory.dmp

          Filesize

          2.1MB

        • memory/4876-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4876-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4876-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB