Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-05-2024 17:32

General

  • Target

    9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.exe

  • Size

    5.6MB

  • MD5

    80c4e4150fabf15ec14890e88dbdfdcf

  • SHA1

    114800380383014f46d24dd398e068197aedea51

  • SHA256

    9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832

  • SHA512

    aa518f80224e7244d69fbdd8e4fa629638f528f3f4cfeabb87498a1093448fff30b3f2238382d47008f693652be498288e8d63e297ab8340ed1c9295efe59213

  • SSDEEP

    98304:msj/ZsDCD/fqkdeRuQRAvjcNO7IXYEhZ0iWtW1cJEF/i2ueS+tDdC:F/CDCD/fqkdCWYO7cOiW0ciF62RS+tDY

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 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\9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.exe
    "C:\Users\Admin\AppData\Local\Temp\9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Users\Admin\AppData\Local\Temp\is-7QAEK.tmp\9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-7QAEK.tmp\9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.tmp" /SL5="$50072,5635552,54272,C:\Users\Admin\AppData\Local\Temp\9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5048
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4576
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4384

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

    ed9d5f2c3a1fbda5e548b285e995cb43

    SHA1

    cdf6b61d9d4e8ab4b923cfb56112fbcc88fa762b

    SHA256

    7b7cfc5deb098ba599010c83ef544335b0fe4218790fa32e550988540ac91d55

    SHA512

    1bd2a8ec1b769f31c64ef05876fdd18c21dd5518df05233d04d1d946dbdf3a548ee48f5e9ae17cfac14679e47a8921a98a5c0c5649ce897d8fc72127031162ef

  • C:\Users\Admin\AppData\Local\Temp\is-7QAEK.tmp\9675addcdc86536f6d2f00ec2d5a838bb1a01a04fc62824156f05e5c4e8f5832.tmp

    Filesize

    680KB

    MD5

    0618c738cf49fa5f045702c69585d459

    SHA1

    c71706644125d08fabf067cbe06030fb9795a2e8

    SHA256

    32d63dc7b012c5855667c4b809b98b42b2a841d38e5350fe7b603b46a74d484e

    SHA512

    bd042294fe9a09b01013d94211cf89ec4c7b1bfec384eb717a25ea864e2c9154ba082b5d9ccc9fd5e04d3b551f7bfdfea5d96d74056e5e27811a9cc4aaecc43a

  • C:\Users\Admin\AppData\Local\Temp\is-M4MI7.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-M4MI7.tmp\_isetup\_isdecmp.dll

    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • memory/1352-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1352-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1352-76-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4384-75-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-81-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-117-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-114-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-74-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-108-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-123-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-111-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-78-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-120-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-82-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-85-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-88-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-91-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-93-0x0000000000A90000-0x0000000000B32000-memory.dmp

    Filesize

    648KB

  • memory/4384-97-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-102-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4384-105-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4576-65-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4576-71-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4576-67-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/4576-69-0x0000000000400000-0x0000000000755000-memory.dmp

    Filesize

    3.3MB

  • memory/5048-77-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5048-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB