Analysis

  • max time kernel
    300s
  • max time network
    301s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-05-2024 22:59

General

  • Target

    5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.exe

  • Size

    5.5MB

  • MD5

    6409aec3770bd614b9e4dfbd1b85d282

  • SHA1

    b1ad1d1fdfe453a623e6edcf25b1329ff72073ca

  • SHA256

    5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b

  • SHA512

    2232383f45ce108cf9104a542b94637e041251f23b23739e39e21e222be9f54903b1042dbdf0cd7e304e044773ffcfebedc9b6a3129aab3780f7c684f47ddd5d

  • SSDEEP

    98304:mQ6D3J4p4IhMHpfhLFnYbNSi5G5acp53GTHwjWltYvU3Oe5mJpsg:WrJe4IhMJtcN4xGTMstYsZgHP

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.exe
    "C:\Users\Admin\AppData\Local\Temp\5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\is-UESMR.tmp\5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UESMR.tmp\5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.tmp" /SL5="$6014A,5553408,54272,C:\Users\Admin\AppData\Local\Temp\5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3856
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    3.0MB

    MD5

    251734f107a626342f2826708538666d

    SHA1

    65994e2d22d513fb17c7b446aebc6942bdea15c5

    SHA256

    c256286b7c6248729eb18f601b78900d4012672d611ec21b6ead810503f1c068

    SHA512

    afeb5ca2be8afe6a2468e6b16ed00c4bacf7da78acc55d45ab0c82427272f04b55e9eecc015ddc064553b1f335600e9bd4b5f67f2c113ffa2ae7c23dd3566949

  • C:\Users\Admin\AppData\Local\Temp\is-UESMR.tmp\5ea242a561d2a84de448d81e63b174b722a1fcc8a3226a4b9673010368bc3b4b.tmp

    Filesize

    680KB

    MD5

    30e5dc321636dc1d86b0b16950a3f885

    SHA1

    cfa8facd8a3dc97ad3e7ccffd930c93e857e087b

    SHA256

    41d0245487e8b9684342aec4912887dd9b68059533239c82b6da7ccb65f22f28

    SHA512

    127c921f155b2b99c6a17ed92665b3c5160ef26cb183703c6735cb77150f3593c86ea30b4717c78f223d1400cbdfb3bc00498c60810511a91cb908eea16ce892

  • \Users\Admin\AppData\Local\Temp\is-B5P22.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-B5P22.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • memory/3856-65-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/3856-70-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/3856-66-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-85-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-98-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-135-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-73-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-132-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-129-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-76-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-79-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-82-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-125-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-88-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-90-0x00000000008A0000-0x0000000000942000-memory.dmp

    Filesize

    648KB

  • memory/4112-93-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-122-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-101-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-104-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-107-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-110-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-113-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-116-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4112-119-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4896-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4896-75-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5052-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5052-74-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/5052-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB