Analysis

  • max time kernel
    142s
  • max time network
    151s
  • 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 14:57

General

  • Target

    eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe

  • Size

    4.9MB

  • MD5

    27a22f76fe738bc47fac734b0b1b4d63

  • SHA1

    ee8dc8c0fd522ae8f9178f54a1faf371e88ae7d7

  • SHA256

    eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d

  • SHA512

    d26895cb00ee020f286a6d6c9ac577e095eed7f10c6efd67ae6df7c5ac770d4bfcc4c45437df8f55fbea1c7b7035e0356c285c5458131bc169fddb33aa8252a8

  • SSDEEP

    98304:m2aNJfHksK6q5msy1iumqixEDhvBDgCBNizWW1KowAaRkL52U7d7O:3ajPK6qMsykumqiSDhvFdBNMWW42L51q

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\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe
    "C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp" /SL5="$600EA,4890189,54272,C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4596
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2356
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    3.4MB

    MD5

    b137840dd7a71e3a38255b8c4ca232e4

    SHA1

    c4d87a58b567a4108c39a74b0d5bd65ce58f9ff3

    SHA256

    812878079e40b2062924109366eca6166da61970e0b0534f31fbe0dfc6b797f4

    SHA512

    af49ca9a1dfc5fbf10515ba5d1046114c4294d00c75d677b468cf691718557d009ff21f725816923fdf7225efdd525e5d7530f6e34102cac18a0f3de9ba9b7f5

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp

    Filesize

    680KB

    MD5

    281b7192d7fae9f9f4f11ad30842bfaa

    SHA1

    35ca07cc4d95c2132eb31152974417ba96e51d43

    SHA256

    fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c

    SHA512

    a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2

  • memory/1100-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1100-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1100-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2356-59-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/2356-63-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/2356-65-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/2356-60-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4596-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4596-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4844-76-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-89-0x0000000000A70000-0x0000000000B12000-memory.dmp

    Filesize

    648KB

  • memory/4844-72-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-75-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-67-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-79-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-82-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-85-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-88-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-69-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-95-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-98-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-101-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-104-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-107-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-110-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-111-0x0000000000A70000-0x0000000000B12000-memory.dmp

    Filesize

    648KB

  • memory/4844-112-0x0000000000A70000-0x0000000000B12000-memory.dmp

    Filesize

    648KB

  • memory/4844-116-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB

  • memory/4844-119-0x0000000000400000-0x000000000076D000-memory.dmp

    Filesize

    3.4MB