Analysis

  • max time kernel
    141s
  • max time network
    133s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/08/2024, 13:24

General

  • Target

    IkpQaE4MtUvIW5WFsHjc3NdL.exe

  • Size

    4.1MB

  • MD5

    4cd68c556df71032f3dd455d95ef4453

  • SHA1

    2b8ed48f8ec965f611746cc65ebba1964065f6e8

  • SHA256

    a045aae04ded2c18b1ab1e206c18bf954844afd6b9c6e9efcecc4cc05dae71da

  • SHA512

    a1c6da21dc5bbab999d29f32cb4b44a1eea9ddb8c20481439018f0fe006ee3aa3a8e7c7ab47f72abff88c01b6875582f38db13afb817c81420fcd4255143fd53

  • SSDEEP

    98304:NJWDz1j13W/mqqD8+X+k8fpYK36gPI/Qa3FMpouiedU:GDquo+X+k8hYG6t/Qa3FMpouiey

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.

  • 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\IkpQaE4MtUvIW5WFsHjc3NdL.exe
    "C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Users\Admin\AppData\Local\Temp\is-S18NK.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-S18NK.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp" /SL5="$701FA,4067069,54272,C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.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:2220
      • C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
        "C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4516
      • C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe
        "C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3120

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe

          Filesize

          2.8MB

          MD5

          9b042eff3b0588152789eaf936240a98

          SHA1

          b7dc00b65a62e942e395c472a1f9dc20fd521e7b

          SHA256

          ea7652fd71370f4f6c76816719b6902bb63e39c03a3ddce57b447f2503b815e2

          SHA512

          2dfc8ba920d69f93400ba40268d03b9c9669cc08364fe62b63a322177edac5dc824e2de66bed0695e8317c4a99bd61f80ebaa5ee8282eb6863ac121fb46d969a

        • C:\Users\Admin\AppData\Local\Temp\is-8O52Q.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-8O52Q.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-S18NK.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp

          Filesize

          692KB

          MD5

          aaba635266ad32cae153be9b39c3e16e

          SHA1

          9d4338d105ccb852e8cd7ec055840c62e65e3555

          SHA256

          e7c0bb4fbfd84a21e1560589d150f204689f5514964c328fe876c03bbf3399f9

          SHA512

          70f09e276cefa6a57dbf97050be69f5f9fa4a8f39e1649b7d2c712447f6e3f27ac86d060d99dcf06484d9d25867d5a3b14aa9f5da8406a8915e34098d3606f67

        • memory/2220-19-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2220-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2352-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2352-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/2352-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3120-92-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-87-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-66-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-116-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-113-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-69-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-72-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-75-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-78-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-81-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-82-0x0000000000A30000-0x0000000000AD2000-memory.dmp

          Filesize

          648KB

        • memory/3120-109-0x0000000000A30000-0x0000000000AD2000-memory.dmp

          Filesize

          648KB

        • memory/3120-108-0x0000000000A30000-0x0000000000AD2000-memory.dmp

          Filesize

          648KB

        • memory/3120-95-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-98-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-101-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-104-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/3120-107-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/4516-58-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/4516-63-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/4516-59-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB

        • memory/4516-61-0x0000000000400000-0x00000000006C5000-memory.dmp

          Filesize

          2.8MB