Analysis

  • max time kernel
    141s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 13:23

General

  • Target

    8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.exe

  • Size

    4.7MB

  • MD5

    83c1d8975651cae4f1784589ec528017

  • SHA1

    98ab2a249e188f69f55eda1ce69c025132341234

  • SHA256

    8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148

  • SHA512

    f30bdf3989ac3112f31d2c9c0c6e7a26f184058db7948cc02b41f8e528c989589182178dc9ecca14101bc8b867eec1658c51cda0776ee1d9c6830ab07a70e89e

  • SSDEEP

    49152:32PxuOKoLjCSfiCNCRfj7iYu0am1g6cHAvjjjSEChE8unbcf1hIgXZz279ZchKcQ:mPxurYp+j7iYdaVWj/P4GgXE7CQCQMs

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\8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.exe
    "C:\Users\Admin\AppData\Local\Temp\8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\is-MUTDF.tmp\8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MUTDF.tmp\8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.tmp" /SL5="$E0062,4698613,54272,C:\Users\Admin\AppData\Local\Temp\8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3656
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    3.3MB

    MD5

    654ec34fd9c27d114d80fcb30028905e

    SHA1

    bb6a5fde0e43de54b83961c2eb57f7f53778a268

    SHA256

    5728f579f43f8f30a88e5f6e12edc44a73f9d9f033087caf339c3cf32be70747

    SHA512

    109fb78d542f1b2dc8ec79cece5f2772f5a7f3e8c0e075ea16b1e67f037d0e59d35504a4dfc89fe92511a3d9405a5623f837806df8661b2df949c8dab13abf9c

  • C:\Users\Admin\AppData\Local\Temp\is-MUTDF.tmp\8065293a115f8a99b025afd939182910272fcafd27117103e213f482a6964148.tmp

    Filesize

    680KB

    MD5

    35dc5f441f5af688cd72c6e0b8dc86dc

    SHA1

    328afce7e8d428b4c0769b722ebf6f7ada656751

    SHA256

    d54b98ace62fc4252c1b7f4a06166cbaa1f246183fb9ea36034b34c9bcd2dddc

    SHA512

    52d5291fdee71e36c724afdc6dfcf86ee17957e52cccbdb663285b5b2f4bfd9b8597e2cedf48f7faf0f17255c6544ae287e0d90c062f76451bc5fe994b39dcc4

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1740-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1740-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2208-97-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-106-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-118-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-115-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-68-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-111-0x0000000002580000-0x0000000002622000-memory.dmp

    Filesize

    648KB

  • memory/2208-110-0x0000000002580000-0x0000000002622000-memory.dmp

    Filesize

    648KB

  • memory/2208-109-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-71-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-74-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-77-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-80-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-83-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-86-0x0000000002580000-0x0000000002622000-memory.dmp

    Filesize

    648KB

  • memory/2208-89-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-94-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-103-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-100-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/3656-59-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/3656-60-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/3656-65-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/3656-63-0x0000000000400000-0x0000000000745000-memory.dmp

    Filesize

    3.3MB

  • memory/4892-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4892-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4892-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB