Analysis

  • max time kernel
    144s
  • max time network
    158s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240319-en
  • resource tags

    arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 11:14

General

  • Target

    5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe

  • Size

    2.0MB

  • MD5

    ff576bc35cf98eee07585ae5b7c88efc

  • SHA1

    df8c450c6966db774d06ab8d2feeb97374cda260

  • SHA256

    5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3

  • SHA512

    a5303ab816eb67f3d517757d07fc8cd1b8a2e6bd4869ca9744405c9ea75c95f5f058301a9ce7ebf99e407504a51d6c879b06018f44dfde24b38d3c1eed815317

  • SSDEEP

    49152:32pu+svTDBZMqdkzssuHTSJf20pom5PRXLFzGHWkme7D:mpfMTDBmeUss8TS52teJXc2kmc

Malware Config

Extracted

Family

socks5systemz

C2

http://ejjvzpz.ua/search/?q=67e28dd83e58f128495cab1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c644db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9ed909f3b

Signatures

  • Detect Socks5Systemz Payload 2 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\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe
    "C:\Users\Admin\AppData\Local\Temp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Users\Admin\AppData\Local\Temp\is-J4UCT.tmp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-J4UCT.tmp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp" /SL5="$40242,1756523,54272,C:\Users\Admin\AppData\Local\Temp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4576
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4672
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          960KB

          MD5

          548d16f6d9364b551f3982034c053eb3

          SHA1

          1bcff76cc01a29550bf5ba196cca79501da5e5b5

          SHA256

          6c7b61d3fa42304d74a68a62fc4afe29b30225e6cdd3b5391cb8060c9de235c2

          SHA512

          12bd999e3d5921dd98b813317baefe8a0a14504e3f61e6e08600f67dd9fde176bc2c16756229bb4804914a28f03425a372b3a407da448a24addc19fddd5bea80

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

          Filesize

          27KB

          MD5

          f29d05321759609efa001b53af993bf6

          SHA1

          35e2dba02060a00f795c1c8848439c2ed1ab5b12

          SHA256

          88663bb84e61233419ae2bda03f04e082ddc65f1f8a1b9be5be9502f687f3858

          SHA512

          95c00fac3d3534b0037a713c895e543b2ef358ca02843bf6ebab8cbacff9ac9169ef1e870a4cd19f70b350c4115ab6bef577ddc8847457c97a9f791d996844aa

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

          Filesize

          1.4MB

          MD5

          d2f9905e704936d346bf56aa46a1b8b7

          SHA1

          63f29f6350cae7c76625195994b06c1480488de7

          SHA256

          57f0444592f3b5768050fa5cfcf61c662bca0d532d549bd063eadcce9f35cfe1

          SHA512

          9540ea6522b3b33c228af137e16bd887a146ebca8765fb1b119260d6f5b4edf8082d1b41d8c0fa8245c549c804ffe1194678f0cfdb7be3d02d16fcb4fe6bf256

        • C:\Users\Admin\AppData\Local\Temp\is-CIN3A.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-J4UCT.tmp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/1860-73-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-54-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-96-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-93-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-86-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-83-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-80-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-77-0x0000000000900000-0x00000000009A2000-memory.dmp

          Filesize

          648KB

        • memory/1860-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-76-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-66-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-57-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-60-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-63-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1860-67-0x0000000000900000-0x00000000009A2000-memory.dmp

          Filesize

          648KB

        • memory/3484-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3484-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3484-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4576-50-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/4576-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4576-7-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/4672-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4672-43-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4672-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4672-39-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB