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Analysis

  • max time kernel
    143s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231201-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231201-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/12/2023, 18:16

General

  • Target

    tuc7.exe

  • Size

    6.9MB

  • MD5

    8cdc35abbc8f012285fa8ada42cd1854

  • SHA1

    27184eee999841e6c589d90fd4f2db92abb21255

  • SHA256

    fcd543fca24df3c849ddd7c28c225335d97c2c8d678409eb5865a7e04548e19d

  • SHA512

    5ec7a6672a3f633d9561d21b48e2af99a8cab035f7f42aa0afb3054967ed38fac7e9677a539e73f66eef2dcbea3a86922ae40768a120cbe59dd79a53d00f12e7

  • SSDEEP

    196608:aA89BmaeXRdyXFnlUrU7o7Bz3HzNNn1jnNnTfMImG0zj:CBmakyVnlUQ7Wz3Tv1jNTh0zj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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.

  • Drops file in Program Files directory 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tuc7.exe
    "C:\Users\Admin\AppData\Local\Temp\tuc7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Users\Admin\AppData\Local\Temp\is-GPT1V.tmp\tuc7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GPT1V.tmp\tuc7.tmp" /SL5="$11005E,6977575,54272,C:\Users\Admin\AppData\Local\Temp\tuc7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2808
      • C:\Program Files (x86)\CRTGame\crtgame.exe
        "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1364
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 10
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1136
      • C:\Program Files (x86)\CRTGame\crtgame.exe
        "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
        3⤵
        • Executes dropped EXE
        PID:372
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3644
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 10
      1⤵
        PID:636

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        73KB

        MD5

        79f676c33ebf214c307bc9124fbcae6b

        SHA1

        fb2a7db44c273f45549f92bfa8f35bbaf3b99711

        SHA256

        ed6c02d3019c24e6420024e5687859f4c2b4a44654c5f8ee5dfa6d1f7c3587eb

        SHA512

        d00c7b867aef177e1e04b8599ebc2a3730e16f2e80b01f3e995a93a4aa2dada0f4c91f11d86d92a1004668ce48878d9b2cd2679adbf75caef16d2e997ff1a7a7

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        58KB

        MD5

        b87546cd6e85d11e595c19a2e5fd12f5

        SHA1

        132325da1ac3ea6d8797f751b6c1d33ebfeab3a8

        SHA256

        3a6594561e684d5e3b6c564e05360760734f1cd0b17a53741cccacf47a8a87e8

        SHA512

        0226b5047625d1553973c7b53ed185fa403616191593d1ba940eac0ec8ea3343d95cfac5344a260ebb40b9a06a6ec528149f9c30b15a8b486ae9888636f0bc18

      • C:\Program Files (x86)\CRTGame\crtgame.exe

        Filesize

        57KB

        MD5

        ae2fa5c69b4da1ea8fdd0ac55fce693b

        SHA1

        071822d82d476bcf887d645d4256cda15ba1ccfb

        SHA256

        67532650c6392b2326d7c14cdd2bc9f7111fdc0d09c37393121d4117c8d63792

        SHA512

        7a0ba52619cfbffabff0f1215e81fed493171f8f4cc2f97b95bdfdc95e04e8a488bc7ed2f69b1c401698b5b3283e3f454bd2280794851399b6418a02e9a49d03

      • C:\Users\Admin\AppData\Local\Temp\is-GPT1V.tmp\tuc7.tmp

        Filesize

        16KB

        MD5

        c581fea6346f1f5510c2e1d3c5fee3df

        SHA1

        e5ff36d94287c5803ffe097e699d31265e6602f1

        SHA256

        cb1c526ed6a3107d9f65f481e3706c87c21dbd7dce739693259fbdd3927282ef

        SHA512

        2d4f8edb01d30d15b12f3f158f62b5deded23a209fb0c196cf53a96577437c5d17b090e3ada3cb09752a20cf09145e8e13ce3b836f0fdf5a5ad3eb2117c191fc

      • C:\Users\Admin\AppData\Local\Temp\is-GPT1V.tmp\tuc7.tmp

        Filesize

        91KB

        MD5

        ac90ebbc6339523a6c312e289d77e503

        SHA1

        646c64258860769d8f633623b1fecf86d5fb91b2

        SHA256

        ea3aeb3f6bb9513981cbd9ab73a72847eda201ae13e334f9d1a0e8d9f2138f4d

        SHA512

        90db86b3874993bcc45f39a6775104e6e7bb29655a495c61445552942fb5d89b0dd6279a87da60a3e986c01f26d7cfb3a3a36f74b3c4765534b56eb880351814

      • C:\Users\Admin\AppData\Local\Temp\is-TGPD6.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-TGPD6.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/372-151-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/372-152-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/372-155-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/372-154-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-185-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-192-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-208-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-204-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-201-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-198-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-161-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-195-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-165-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-166-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-169-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-172-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-175-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-176-0x00000000007B0000-0x0000000000852000-memory.dmp

        Filesize

        648KB

      • memory/1364-181-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-182-0x00000000007B0000-0x0000000000852000-memory.dmp

        Filesize

        648KB

      • memory/1364-158-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-188-0x0000000000400000-0x000000000061E000-memory.dmp

        Filesize

        2.1MB

      • memory/1364-189-0x00000000007B0000-0x0000000000852000-memory.dmp

        Filesize

        648KB

      • memory/1544-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1544-159-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1544-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2808-162-0x00000000021F0000-0x00000000021F1000-memory.dmp

        Filesize

        4KB

      • memory/2808-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2808-8-0x00000000021F0000-0x00000000021F1000-memory.dmp

        Filesize

        4KB