Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    19/07/2024, 22:49

General

  • Target

    a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe

  • Size

    660KB

  • MD5

    0d9c90532c6ddcc0db641042fe66e031

  • SHA1

    3ef0d8fd2c2e44feef74ed8a24921ac1f8ea1d2c

  • SHA256

    a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47

  • SHA512

    72c7861fa2c1d9fe388446ae88d6c38ff5a7ce15674b57674a48340b1116eeecbfa269cacce4070ba9010f0fe7573da9f470a6f6a64f7ac97d3ef61bca6d5975

  • SSDEEP

    12288:Pp7+znMwHskY7gjcjhVIEhqgM7bWvcsi6aVtrIyzU40vy3W/ceKSHMsiFyY6XN9:R7SMysZgjS1hqgSC/izJfojymk4HM5yJ

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe
        "C:\Users\Admin\AppData\Local\Temp\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2548
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a9D39.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2536
          • C:\Users\Admin\AppData\Local\Temp\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe
            "C:\Users\Admin\AppData\Local\Temp\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2868
            • C:\Windows\Temp\{7E37C5B7-8C71-4B4A-8EC8-38B30DA0E96B}\.cr\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe
              "C:\Windows\Temp\{7E37C5B7-8C71-4B4A-8EC8-38B30DA0E96B}\.cr\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:3020
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2552
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2336
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2864

      Network

            MITRE ATT&CK Enterprise v15

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            Downloads

            • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

              Filesize

              251KB

              MD5

              c8815a0def060805cd68b27911b50324

              SHA1

              7679abbdb549b6f2e55019d01f45601d60177c42

              SHA256

              75f96336b6f31fb604f361a304076c9636a01d3dfe806e36736f875d71248eb2

              SHA512

              292c67e8ad8d04f552f8d7a77bb8639db5b71e608138164ed8770c80b620ec442bafd53d1a11b9bbc22abd45ed9505ddbe4618c499bed2fe53c2bf5db67aafac

            • C:\Users\Admin\AppData\Local\Temp\$$a9D39.bat

              Filesize

              722B

              MD5

              a5720594d88e2b07be54fe771ed095f5

              SHA1

              0296b9997ea7856d972efeaf8b82fd31537c8f93

              SHA256

              a684575b141969c85675ba4a4bf49e4b0e920ce05ad41e96406eb467d5c0aca5

              SHA512

              2e930ca26f608ac1cf7867c31de6f2f25e5cf2b086dfe330f3c53882a1be452cc09b1d4ff1dd42125b0e2212c5c1921ee0ab0e330ce56f4368292a01e2f3c341

            • C:\Users\Admin\AppData\Local\Temp\a33ff0fbf40f2a77a95b70ba499d0efe12131b471f27efe68509fbe2ba287a47.exe.exe

              Filesize

              634KB

              MD5

              3cfb3ae4a227ece66ce051e42cc2df00

              SHA1

              0a2bb202c5ce2aa8f5cda30676aece9a489fd725

              SHA256

              54fbe7fdf0fd2e95c38822074e77907e6a3c8726e4ab38d2222deeffa6c0ccaf

              SHA512

              60d808d08afd4920583e540c3740d71e4f9dc5b16a0696537fea243cb8a79fb1df36004f560742a541761b0378bf0b5bc5be88569cd828a11afe9c3d61d9d4f1

            • C:\Windows\Logo1_.exe

              Filesize

              26KB

              MD5

              aaffa63d279b442bf6447d8e27477be7

              SHA1

              ce128e98423d5e0dd1b35c0e8e8eb854d5599a0f

              SHA256

              acca897ac28f597801df59bd1343785f7bea8c1013821c44d2f1878ee5ef1488

              SHA512

              b8521588339c507b10c473aaa8aca314598962588da0014b00f413f9874a425534eb20260ed39484728bd4466fb3d7f516b6cfccc56d51e026f5365030b81c26

            • C:\Windows\Temp\{B4334210-10B9-418E-9028-1B7BD90CE378}\.ba\logo.png

              Filesize

              1KB

              MD5

              d6bd210f227442b3362493d046cea233

              SHA1

              ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

              SHA256

              335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

              SHA512

              464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

            • F:\$RECYCLE.BIN\S-1-5-21-3450744190-3404161390-554719085-1000\_desktop.ini

              Filesize

              9B

              MD5

              1368e4d784ef82633de86fa6bc6e37f9

              SHA1

              77c7384e886b27647bb4f2fd364e7947e7b6abc6

              SHA256

              57507bed6cf91d70e66bd4cc287634889ef30b648cb7c44a4edec0e2cb68b772

              SHA512

              3cb7168e776eb564768e30eba43174014a85108ab306a7c07a1522fb42173c381a5bff9ac10944fd345dd5308061cbe2878c60d1e878f8768281c1adcf5dd85b

            • \Windows\Temp\{B4334210-10B9-418E-9028-1B7BD90CE378}\.ba\wixstdba.dll

              Filesize

              191KB

              MD5

              eab9caf4277829abdf6223ec1efa0edd

              SHA1

              74862ecf349a9bedd32699f2a7a4e00b4727543d

              SHA256

              a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041

              SHA512

              45b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2

            • memory/1208-80-0x00000000021E0000-0x00000000021E1000-memory.dmp

              Filesize

              4KB

            • memory/2548-16-0x0000000000220000-0x0000000000254000-memory.dmp

              Filesize

              208KB

            • memory/2548-15-0x0000000000220000-0x0000000000254000-memory.dmp

              Filesize

              208KB

            • memory/2548-0-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2548-19-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-20-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-90-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-96-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-142-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-148-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-773-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-1925-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-83-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-2776-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB

            • memory/2552-3385-0x0000000000400000-0x0000000000434000-memory.dmp

              Filesize

              208KB