Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-05-2024 12:52

General

  • Target

    9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.exe

  • Size

    4.8MB

  • MD5

    4b922ccfe770c51a038741d64c10732b

  • SHA1

    4d728b8eeca1d547f2b59720fd266e42870e74af

  • SHA256

    9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4

  • SHA512

    c769bef0b4033beb80f8e96e64dcef10c7e2581d424ddd26e8bdea833473c0bc71ae136c8c4d6e7395d94a116dc38c9e135179e6e4c757e76858daa81e5efe5d

  • SSDEEP

    98304:mfHf4itlfuiWmM96tZHANGdrCPHgS64s0olzz9uAku8zhArPPqNJbRQ:IAitlfuiWP98+PHgSFs99uALzr3qNJbq

Malware Config

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\9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.exe
    "C:\Users\Admin\AppData\Local\Temp\9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:228
    • C:\Users\Admin\AppData\Local\Temp\is-6K6KU.tmp\9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6K6KU.tmp\9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.tmp" /SL5="$7013C,4749555,54272,C:\Users\Admin\AppData\Local\Temp\9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2420
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

    Filesize

    3.3MB

    MD5

    9ebe3aa1206d9f36c65c95e454a253f9

    SHA1

    1311e776770555f829cbe11ce310155570d20354

    SHA256

    9ae0369f9ec00fb9e9d5f836b5393a38df13da15e8ed65c267edfd97a5264e99

    SHA512

    762ffefcd72461be6a7d43055dee7c6c3e43cc1372b9a93695e99579d69444cb6e84aa002e090e72c788d0100871db465d051e894745a93d9ff64f73e3f09b65

  • C:\Users\Admin\AppData\Local\Temp\is-6K6KU.tmp\9eb56324e4f580833c087169a098945ca51c3857fafd53114695a72add050dc4.tmp

    Filesize

    680KB

    MD5

    35dc5f441f5af688cd72c6e0b8dc86dc

    SHA1

    328afce7e8d428b4c0769b722ebf6f7ada656751

    SHA256

    d54b98ace62fc4252c1b7f4a06166cbaa1f246183fb9ea36034b34c9bcd2dddc

    SHA512

    52d5291fdee71e36c724afdc6dfcf86ee17957e52cccbdb663285b5b2f4bfd9b8597e2cedf48f7faf0f17255c6544ae287e0d90c062f76451bc5fe994b39dcc4

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/228-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/228-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/228-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1312-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1312-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2420-74-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/2420-59-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/2420-60-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/2420-63-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-88-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-97-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-70-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-77-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-80-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-83-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-86-0x0000000002540000-0x00000000025E2000-memory.dmp

    Filesize

    648KB

  • memory/4600-67-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-94-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-73-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-100-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-103-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-106-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-109-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-110-0x0000000002540000-0x00000000025E2000-memory.dmp

    Filesize

    648KB

  • memory/4600-111-0x0000000002540000-0x00000000025E2000-memory.dmp

    Filesize

    648KB

  • memory/4600-115-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB

  • memory/4600-118-0x0000000000400000-0x0000000000744000-memory.dmp

    Filesize

    3.3MB