Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-03-2024 08:25

General

  • Target

    ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.exe

  • Size

    2.0MB

  • MD5

    84afe61b642dd4b0c7f0a2676ee7f4fb

  • SHA1

    557485e9ece9074daad56191860e9f9a017ea19a

  • SHA256

    ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a

  • SHA512

    48ed822f765aa6e3ab43dea09b71e599824c484ec96614d28dd5748463c24029420fa3dbc0247d40274add25f5ddcebc4646c1f7661485eb726c2e54c000c346

  • SSDEEP

    49152:32ITvG0tewnTLd5/O3yqNVW6lZOxH2QeZ3sud/YO7VO:mQvG0XTJBO3vNA6PbQSsqRO

Malware Config

Extracted

Family

socks5systemz

C2

http://ckrxmcy.net/search/?q=67e28dd83f08f2204807f9497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe16c0ef929339

http://ckrxmcy.net/search/?q=67e28dd83f08f2204807f9497c27d78406abdd88be4b12eab517aa5c96bd86eb96864a835a8bbc896c58e713bc90c91e36b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949d3bcd689f14

Signatures

  • Detect Socks5Systemz Payload 4 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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.exe
    "C:\Users\Admin\AppData\Local\Temp\ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\is-20TFR.tmp\ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-20TFR.tmp\ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.tmp" /SL5="$40216,1771820,54272,C:\Users\Admin\AppData\Local\Temp\ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Users\Admin\AppData\Local\Metatogger Music Collection\metatoggermusiccollection.exe
        "C:\Users\Admin\AppData\Local\Metatogger Music Collection\metatoggermusiccollection.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1772
      • C:\Users\Admin\AppData\Local\Metatogger Music Collection\metatoggermusiccollection.exe
        "C:\Users\Admin\AppData\Local\Metatogger Music Collection\metatoggermusiccollection.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Metatogger Music Collection\metatoggermusiccollection.exe

    Filesize

    1.9MB

    MD5

    99453cad55390b4c5fcf3dd052b7c8fe

    SHA1

    77b6a656504c59f3c347f6d69252e847a244784d

    SHA256

    435b6d2665d1c001826e367f95618039ba6a17ab88434c0f9b084997246b11c1

    SHA512

    b7a19ec9e918bf083f0071b7e7a1458963f29ea19e103f318537dbd590ddbf270dda7da58eb2b4f6ee792114cb2e2488d92678c8fe3c31c5b9fdf0a7b558da5d

  • C:\Users\Admin\AppData\Local\Temp\is-20TFR.tmp\ed74023070e87ae804dfbdef6e235c3a419799a32f3677945ac8156588f0044a.tmp

    Filesize

    677KB

    MD5

    8e02bc0df97f95a1df3fd1eee341c73f

    SHA1

    725a46c1380c1d56bcfdf2e1e69efbaba192a1cb

    SHA256

    52823d5894e5bd513eae0efac44079187a078a37d023017d37670d1381b4566d

    SHA512

    522cb11ffdc238f2febbca868d52887b2c3b957ee51448488b3949f7ad7707103891fd5c80b0105fffdebfb7b666fadd58afa6e0060d789dc5b1e6c652a73449

  • C:\Users\Admin\AppData\Local\Temp\is-SAI6G.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-SAI6G.tmp\_isetup\_isdecmp.dll

    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • memory/1384-85-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-82-0x00000000007D0000-0x0000000000872000-memory.dmp

    Filesize

    648KB

  • memory/1384-103-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-100-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-96-0x00000000007D0000-0x0000000000872000-memory.dmp

    Filesize

    648KB

  • memory/1384-51-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-95-0x00000000007D0000-0x0000000000872000-memory.dmp

    Filesize

    648KB

  • memory/1384-94-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-54-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-91-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-58-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-59-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-62-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-65-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-68-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-72-0x00000000007D0000-0x0000000000872000-memory.dmp

    Filesize

    648KB

  • memory/1384-71-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-78-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-81-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1384-88-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1772-47-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1772-44-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/1772-43-0x0000000000400000-0x00000000005DF000-memory.dmp

    Filesize

    1.9MB

  • memory/2192-6-0x0000000002340000-0x0000000002341000-memory.dmp

    Filesize

    4KB

  • memory/2192-55-0x0000000002340000-0x0000000002341000-memory.dmp

    Filesize

    4KB

  • memory/2192-53-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

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

    Filesize

    80KB

  • memory/5052-52-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB