Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/08/2024, 15:01

General

  • Target

    a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe

  • Size

    3.9MB

  • MD5

    20c1411d368aae74bf3f07e49416f8a5

  • SHA1

    2f800d91350c304687977a6997689d99cc81625a

  • SHA256

    a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54

  • SHA512

    3656f207ffeda1fdd1557090757eee75bc41aedfaa35f8fb93e1c08e5bc36c232827d81115632049c3b18830ff9b82c1cf0ab121b87ae4b786de5a0efc3dad76

  • SSDEEP

    98304:NZPGQrQ615H8NYHBAe0AQO8y2NCsdVRBcO4qGqMvbWgwhET9BEodU:3z9+YdQO8yHsfcO4riKDW

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.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe
    "C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp" /SL5="$B02CA,3821356,54272,C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
        "C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3312
      • C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
        "C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3884

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

          Filesize

          4.5MB

          MD5

          d2a3590cd1a8a5b3e3ddd8839a7a4ca9

          SHA1

          3b09fd644f8628f2f23ef0622374ef72a545d78c

          SHA256

          7a009ecaa6467056a6d6e1ee1ae689bf43bb75e9128e94c475f4c409b078b285

          SHA512

          87f525346aab68de223f44809c8bc117f97961f22f1629982deb836737c80a12290c9b7c8e1a8bbe906ba8fe4461965435ac25670d069c45793affad59eae84b

        • C:\Users\Admin\AppData\Local\Temp\is-4S15G.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp

          Filesize

          692KB

          MD5

          78800d81ba6ad634d25059847cfb1baa

          SHA1

          022982bc0d006b40299bd553653970acb4718682

          SHA256

          24a25380d33d0cf52686906e1272d13c3d467307ec7194e1186cab6f3aa3af69

          SHA512

          83ffff319f2d910d001af4900098e8857dc9c4bd592e60b27ffdb0b49f9c8e1922ef61bfcdbebe9c1a37a7339a00ac98f05cba3d41f580513cb6971bcffd23a8

        • memory/2036-61-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2036-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3312-53-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3312-52-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3312-55-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3312-56-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-65-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-84-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-108-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-105-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-62-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-101-0x0000000000B90000-0x0000000000C32000-memory.dmp

          Filesize

          648KB

        • memory/3884-68-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-71-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-74-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-77-0x0000000000B90000-0x0000000000C32000-memory.dmp

          Filesize

          648KB

        • memory/3884-79-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-58-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-87-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-90-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-93-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-96-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-99-0x0000000000400000-0x0000000000876000-memory.dmp

          Filesize

          4.5MB

        • memory/3884-100-0x0000000000B90000-0x0000000000C32000-memory.dmp

          Filesize

          648KB

        • memory/4928-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4928-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4928-60-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB