Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/08/2024, 01:47

General

  • Target

    0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe

  • Size

    4.5MB

  • MD5

    5d76c07ef6deed24f61bbea8b753275e

  • SHA1

    74666c949ba1baf2efeea4f3f84778769ca54c2d

  • SHA256

    0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8

  • SHA512

    0d9cb94dcf98a174aecff7ed79530011774f4a7e994bc7b8661e9cbc5a08834b3903f851b39d0537048fc6526fd7704ec6a6994d55df5e29737c3850bc385972

  • SSDEEP

    98304:N+8+gI2vM0gQprLCtQgoFvFsD7uqeG7peIzrGMV9NdJ:Zrk0gQprLNBFsnT70qGED

Malware Config

Signatures

  • Detect Socks5Systemz Payload 6 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\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe
    "C:\Users\Admin\AppData\Local\Temp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5888
    • C:\Users\Admin\AppData\Local\Temp\is-PRKBI.tmp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PRKBI.tmp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.tmp" /SL5="$50106,4414815,54272,C:\Users\Admin\AppData\Local\Temp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.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:4948
      • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
        "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2744
      • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
        "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4200

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe

          Filesize

          4.1MB

          MD5

          21837b6f19f5fcf8a90a3d6f5f27e0b3

          SHA1

          e1c17e321eddd3f8ed611684bceff0a2983453a7

          SHA256

          f62f9ac2bdf1b12049d1ed404649698322a2375c00e496a019c09e8ac144a581

          SHA512

          432531f985165fc7954e3c9a678b13f572ff5b6e9539b8161fe624dffb00cd4c3f3e0a9ac33cefed363a8e2f79080813441aac720811ee1f8b4cc9e854ca9628

        • C:\Users\Admin\AppData\Local\Temp\is-6IGMP.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-6IGMP.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-PRKBI.tmp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.tmp

          Filesize

          692KB

          MD5

          85fc5b8836d8625fbfa40a092386e645

          SHA1

          a90bb83f5d8d024bb357a44682267a50406071d6

          SHA256

          6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950

          SHA512

          c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae

        • memory/2744-58-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/2744-59-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/2744-63-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/2744-61-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-77-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-85-0x0000000000C50000-0x0000000000CF2000-memory.dmp

          Filesize

          648KB

        • memory/4200-122-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-66-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-67-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-119-0x0000000000C50000-0x0000000000CF2000-memory.dmp

          Filesize

          648KB

        • memory/4200-117-0x0000000000C50000-0x0000000000CF2000-memory.dmp

          Filesize

          648KB

        • memory/4200-70-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-73-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-74-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-116-0x0000000000C50000-0x0000000000CF2000-memory.dmp

          Filesize

          648KB

        • memory/4200-80-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-83-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-115-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-89-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-94-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-97-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-100-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-103-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-106-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-109-0x0000000000400000-0x0000000000815000-memory.dmp

          Filesize

          4.1MB

        • memory/4200-111-0x0000000000C50000-0x0000000000CF2000-memory.dmp

          Filesize

          648KB

        • memory/4200-110-0x0000000000C50000-0x0000000000CF2000-memory.dmp

          Filesize

          648KB

        • memory/4948-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4948-69-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/5888-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5888-68-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5888-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB