Analysis

  • max time kernel
    141s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 02:07

General

  • Target

    1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.exe

  • Size

    5.1MB

  • MD5

    3fc3f8614cb6ee294f9dec735ca481aa

  • SHA1

    904fc7054f1b124abb6bbce188d41860efaa7304

  • SHA256

    1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e

  • SHA512

    fcee9601905551959080494a94332c56a1b24a8d6339345b6b5bacfda2dde7948500a86a4b89d81d67a137d9bb754b2f25620519bf5837cf4cac91127d0dd419

  • SSDEEP

    98304:mgV569moze9t0isY5+rNx4LwVmgeDMx3hnT7Ma3tm3dOtpucq2t2:J56Iyg5Ux4cVjiq3tcdsz2

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 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\1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.exe
    "C:\Users\Admin\AppData\Local\Temp\1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Users\Admin\AppData\Local\Temp\is-JNFT9.tmp\1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JNFT9.tmp\1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.tmp" /SL5="$401EC,5107272,54272,C:\Users\Admin\AppData\Local\Temp\1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4852
      • C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
        "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4168
      • C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe
        "C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2120

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\MaxPad\maxpad32.exe

    Filesize

    2.2MB

    MD5

    ebe49cfe2c8a790869eaf8c3fa276c82

    SHA1

    79f96b358023e303b041577776805863d6439552

    SHA256

    a4896df9d16ddb9731bd99e555f5fae795e7d185754f66a6e0dc253b833bbc4d

    SHA512

    3acb28666a369662fb35e414edc482d892b9a532a4bf374d5d50162748b403637bd99445db44372ee315970b349dc0127333c67f93f72e5770d9368f3921efc3

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

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-JNFT9.tmp\1dfe4fa3a0c76f75012065ecf9d5ee298a27d6125cddcc003437385e8b79c86e.tmp

    Filesize

    680KB

    MD5

    3c22f4ba1a54bd7c893cda0d06a453a0

    SHA1

    a7e446f9a63c244326ce97be963e07fe2937c456

    SHA256

    c6bc0aff8501f57e2a6c1e3b297a39a4949cf52f7a167f804145745dbeb63f8c

    SHA512

    387c8babf5557569dab2830332f2bf961477a1aa6e918600f94d02fa2c37ae79000b02cf16eaa073288f42fec8378043f1d3163159d36f82ccc319468a56e21f

  • memory/2120-102-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-108-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-123-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-120-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-116-0x0000000002480000-0x0000000002522000-memory.dmp

    Filesize

    648KB

  • memory/2120-115-0x0000000002480000-0x0000000002522000-memory.dmp

    Filesize

    648KB

  • memory/2120-73-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-114-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-111-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-76-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-79-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-82-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-85-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-88-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-89-0x0000000002480000-0x0000000002522000-memory.dmp

    Filesize

    648KB

  • memory/2120-94-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-99-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/2120-105-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4168-69-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4168-66-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4168-65-0x0000000000400000-0x000000000062B000-memory.dmp

    Filesize

    2.2MB

  • memory/4524-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4524-74-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4524-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4852-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4852-75-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB