Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 01:39

General

  • Target
    487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe
  • Size 4.0MB
  • Sample240613-b3c3bazbqa
  • SHA256 487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3440
      • C:\Users\Admin\AppData\Local\Temp\487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe
        "C:\Users\Admin\AppData\Local\Temp\487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2824
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a518B.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2708
          • C:\Users\Admin\AppData\Local\Temp\487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe
            "C:\Users\Admin\AppData\Local\Temp\487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe"
            4⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2112
            • C:\WCH.CN\CH35XDRV\PCISETUP.exe
              "C:\WCH.CN\CH35XDRV\PCISETUP.exe"
              5⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:3684
              • C:\WCH.CN\CH35XDRV\SETUPX64\PCISETUP64.EXE
                C:\WCH.CN\CH35XDRV\SETUPX64\PCISETUP64.EXE
                6⤵
                • Executes dropped EXE
                PID:3876
        • 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:532
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2548
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:4060

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            GoogleUpdateCore.exe

            • Path C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
            • Size 251KB
            • SHA256 c8c24b307d23d58001ae39665d1111bf51b8717847c2e399ce52593d417eb060
            • MD5 SHA1 SHA512 SSDEEP

            7z.exe

            • Path C:\Program Files\7-Zip\7z.exe
            • Size 570KB
            • SHA256 d011fda8165fc5b2e786cc2dddf54de62e5dc43d20922d41cbc5ddc5ef616088
            • MD5 SHA1 SHA512 SSDEEP

            windowsdesktop-runtime-8.0.2-win-x64.exe

            • Path C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
            • Size 636KB
            • SHA256 82e5b0001f025ca3b8409c98e4fb06c119c68de1e4ef60a156360cb4ef61d19c
            • MD5 SHA1 SHA512 SSDEEP

            $$a518B.bat

            • Path C:\Users\Admin\AppData\Local\Temp\$$a518B.bat
            • Size 722B
            • SHA256 3a6e0d9c115bf10930f216f9671b76a67e504c1e11df7bde976b5212f47ea4eb
            • MD5 SHA1 SHA512

            487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe.exe

            • Path C:\Users\Admin\AppData\Local\Temp\487d983ce419f7f20ec7bf626203c9ee801940aa8f4cccd7eb0487fbd820fa41.exe.exe
            • Size 4.0MB
            • SHA256 0965e9211f47953fede4d9d7c8b929fced504f7e0414b1974cae5865fbb589cd
            • MD5 SHA1 SHA512 SSDEEP

            Makefile

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\Makefile
            • Size 722B
            • SHA256 cda1ad01c9be377a982ef2eab791fc0d15add3e2d7ceebf863b50e39b86d6c2d
            • MD5 SHA1 SHA512

            README

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\README
            • Size 7KB
            • SHA256 9d90cf2794f5ce5ac1b73aafeef3d00789694d3126915bbdd61eb0a3e8803c1a
            • MD5 SHA1 SHA512 SSDEEP

            Makefile

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\driver\Makefile
            • Size 3KB
            • SHA256 51ca017fc0f8e82e1676b96cb49e20f9c043365b05606cb492c3e1472a327919
            • MD5 SHA1 SHA512

            wch_common.h

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\driver\wch_common.h
            • Size 19KB
            • SHA256 eb60ecc7e88f391bc8b85ac4496621eda2d18e0ac63d623ff8fd54be912c6aed
            • MD5 SHA1 SHA512 SSDEEP

            wch_devtable.c

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\driver\wch_devtable.c
            • Size 16KB
            • SHA256 4029308edef2854a22530978ff6c8d58db2486c944cb634cea3ccff13affdfee
            • MD5 SHA1 SHA512 SSDEEP

            wch_main.c

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\driver\wch_main.c
            • Size 36KB
            • SHA256 a8514494e7ed68a681828deb85b8c3768895fcd32a254b3862fad68e28179d76
            • MD5 SHA1 SHA512 SSDEEP

            wch_serial.c

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\driver\wch_serial.c
            • Size 93KB
            • SHA256 8168d5c6dc15a7eac1feedee1e2670f4c3618fe20f19148a699f4fb280223885
            • MD5 SHA1 SHA512 SSDEEP

            Makefile

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\wchdump\Makefile
            • Size 301B
            • SHA256 82eb4b7cf01cef21acf5a5fd6ee01a9d36f7a34cfcbab160beca5e4635631edb
            • MD5 SHA1 SHA512

            wchdump.c

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\wchdump\wchdump.c
            • Size 3KB
            • SHA256 98025085756932a1e3ad4e47ff5b8a263588c3e7e47789a861b6d62784eb7155
            • MD5 SHA1 SHA512

            wchmknod

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\wchmknod\wchmknod
            • Size 622B
            • SHA256 308a66416394124463dec29c138f24a57d7b0e2b79a59619dc4551b5ff52d0c3
            • MD5 SHA1 SHA512

            Makefile

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\wchterm\Makefile
            • Size 349B
            • SHA256 80368b581e178c46c2433e2104ada5055557512c6a52d5551d5d1289fad77cdc
            • MD5 SHA1 SHA512

            wchterm.c

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\wchterm\wchterm.c
            • Size 26KB
            • SHA256 50558006d260bdd4224977019617f02f05209ed0bfa70b4652f0d683592e670a
            • MD5 SHA1 SHA512 SSDEEP

            wchterm.h

            • Path C:\WCH.CN\CH35XDRV\DRV_1S\LINUX\wchterm\wchterm.h
            • Size 2KB
            • SHA256 106203829fe3a81daceda8d76df9f88aae3934e6802c672e28ba08ec176aa4fc
            • MD5 SHA1 SHA512

            CH35XDOS.EXE

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\DOS\CH35XDOS.EXE
            • Size 20KB
            • SHA256 2e4ab626d94519bb9e9560fe450aa92904134174a8398691412be1032435e8a8
            • MD5 SHA1 SHA512 SSDEEP

            readme.txt

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\DOS\readme.txt
            • Size 3KB
            • SHA256 f7d224d9c878cddd281fb52f0ea92d1e5fce2fe44d6f7495326d480cab798892
            • MD5 SHA1 SHA512

            CH35XDRV.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\WIN 8\CH35XDRV.INF
            • Size 22KB
            • SHA256 e6ce1b22607c95c16d46355318a5836427084f040b90030a1c84b995a78a4212
            • MD5 SHA1 SHA512 SSDEEP

            PORTS.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\WIN 8\PORTS.INF
            • Size 5KB
            • SHA256 a3afe7e991ab7c7c63fb545eabfe16bd973187fc0c7c89193f16d0abd881507b
            • MD5 SHA1 SHA512 SSDEEP

            ch35xdrv.cat

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\WIN 8\ch35xdrv.cat
            • Size 13KB
            • SHA256 c51328a5bd51435d4f301008dcb8e6249c563742b285f67d65b3f74bb15161ed
            • MD5 SHA1 SHA512 SSDEEP

            ports.cat

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\WIN 8\ports.cat
            • Size 13KB
            • SHA256 075060dbbc2fef8e90ab7b672fe1fe63fdf830730120e7e5cf17c4c6a0817e7a
            • MD5 SHA1 SHA512 SSDEEP

            PORTS.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P\WIN 98&NT40\PORTS.INF
            • Size 5KB
            • SHA256 af8b6b060338638048eaec5cbb0ca7f0c5f2e41da03cdb2e9fb05217f95f6e4b
            • MD5 SHA1 SHA512 SSDEEP

            CH35XDRV2K.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P_RA\WIN 2000\CH35XDRV2K.INF
            • Size 15KB
            • SHA256 1524ba82267ff873978902bc4d5e8611fceab2d299210eec9dbd6a94afe2b1d9
            • MD5 SHA1 SHA512 SSDEEP

            CH35XDRV98.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_2S1P_RA\WIN 98&NT40\CH35XDRV98.INF
            • Size 10KB
            • SHA256 3e95b42046ef6ca36c7bc002e998b472c8b4d5ab2757b8c9f4a4ade2005b9963
            • MD5 SHA1 SHA512 SSDEEP

            WCHPPar.sys

            • Path C:\WCH.CN\CH35XDRV\DRV_2SA\WINDOWS\WCHPPar.sys
            • Size 15KB
            • SHA256 412be5812440419596036573c91a4d610883296bd74dcaedc85fe8a2c513400a
            • MD5 SHA1 SHA512 SSDEEP

            WCHPSER.sys

            • Path C:\WCH.CN\CH35XDRV\DRV_2SA\WINDOWS\WCHPSER.sys
            • Size 54KB
            • SHA256 901b654ce4daa20057d2bd736d43fcc46ccfcdd3c288f030437c0cee9effad94
            • MD5 SHA1 SHA512 SSDEEP

            MPORTS.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_4S128\WIN 8\MPORTS.INF
            • Size 33KB
            • SHA256 ecf3b81e5333a14a54b9974887e843ee773220329a947e0aa2f8ea419baa1424
            • MD5 SHA1 SHA512 SSDEEP

            PCISA64.sys

            • Path C:\WCH.CN\CH35XDRV\DRV_4S128\WIN 8\PCISA64.sys
            • Size 104KB
            • SHA256 e45db49b5bcd3793c974c3d9665f985ba5d2062161cc9969870317bf086290be
            • MD5 SHA1 SHA512 SSDEEP

            wchports64.dll

            • Path C:\WCH.CN\CH35XDRV\DRV_4S128\WIN 8\wchports64.dll
            • Size 47KB
            • SHA256 510556577e28896f16363d90d11b3f21decc173c8e963e6d3171ea4f21a188cd
            • MD5 SHA1 SHA512 SSDEEP

            PCISER.sys

            • Path C:\WCH.CN\CH35XDRV\DRV_4S1P\WIN 2003&XP&VISTA&2008&7\PCISER.sys
            • Size 84KB
            • SHA256 a9ef2e8bf93c61b627ad58c8f6386ed77eb4e9cd92013cb2d987d5fb3dbd3ebc
            • MD5 SHA1 SHA512 SSDEEP

            wchports.dll

            • Path C:\WCH.CN\CH35XDRV\DRV_4S1P\WIN 2003&XP&VISTA&2008&7\wchports.dll
            • Size 36KB
            • SHA256 969a3930e8626c4c0d5c5b1343c797df02b24d8a72b4d53d4def28285efd9acd
            • MD5 SHA1 SHA512 SSDEEP

            MPORTS2K.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_6S\WIN 2000\MPORTS2K.INF
            • Size 22KB
            • SHA256 390d70a64b0bc097d46407d13d2e05756337cee6563a3e4bdf263161c3c06a86
            • MD5 SHA1 SHA512 SSDEEP

            PCIPAR.sys

            • Path C:\WCH.CN\CH35XDRV\DRV_6S\WIN 2000\PCIPAR.sys
            • Size 26KB
            • SHA256 97a2391ba11678aa97464604fb10488115fdacd89c64c9c53e4b9d58ad6f154c
            • MD5 SHA1 SHA512 SSDEEP

            MPORTS98.INF

            • Path C:\WCH.CN\CH35XDRV\DRV_6S\WIN 98&NT40\MPORTS98.INF
            • Size 7KB
            • SHA256 67b9552b7352d8511f1fe299ff28c1ae3e55a3b5e79ac34ec76f944f52de377b
            • MD5 SHA1 SHA512 SSDEEP

            PCIMF.VXD

            • Path C:\WCH.CN\CH35XDRV\DRV_6S\WIN 98&NT40\PCIMF.VXD
            • Size 11KB
            • SHA256 429caeb0b92b67e8d7dda6b374ed3ee18b2c263d376756e6779ef833a3cb1fe0
            • MD5 SHA1 SHA512 SSDEEP

            PCIPORTS.DLL

            • Path C:\WCH.CN\CH35XDRV\DRV_6S\WIN 98&NT40\PCIPORTS.DLL
            • Size 11KB
            • SHA256 0474082e9274089b11abf9671cae5c806446ad785c1d8a1491faf4d98bd7ad2d
            • MD5 SHA1 SHA512 SSDEEP

            PCISER.VXD

            • Path C:\WCH.CN\CH35XDRV\DRV_6S\WIN 98&NT40\PCISER.VXD
            • Size 16KB
            • SHA256 067dc6004bf861f84219ffd5152b7b5ace7e9efdd765954bf4c910e5203a2e52
            • MD5 SHA1 SHA512 SSDEEP

            PCISETUP.exe

            • Path C:\WCH.CN\CH35XDRV\PCISETUP.exe
            • Size 270KB
            • SHA256 1ad33b6a8c4cf9f9eab5247ba6a29a57a8819cc0d5c94d3f24795db11bddf005
            • MD5 SHA1 SHA512 SSDEEP

            PCISETUP64.exe

            • Path C:\WCH.CN\CH35XDRV\SETUPX64\PCISETUP64.exe
            • Size 231KB
            • SHA256 abf69f1a32247db43a90bc42c1aa1adde393b07ccd136554342d038f9f895fea
            • MD5 SHA1 SHA512 SSDEEP

            Logo1_.exe

            • Path C:\Windows\Logo1_.exe
            • Size 26KB
            • SHA256 fc1e9828ed72b98f9dfb81994b95c67ec725e805c35e5aa12f69af577196b232
            • MD5 SHA1 SHA512 SSDEEP

            _desktop.ini

            • Path F:\$RECYCLE.BIN\S-1-5-21-3169499791-3545231813-3156325206-1000\_desktop.ini
            • Size 9B
            • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
            • MD5 SHA1 SHA512

            memory/532-1163-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-853-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-860-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-866-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-870-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-11-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-2065-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-5633-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/532-6072-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2112-852-0x0000000000400000-0x0000000000422000-memory.dmp

            memory/2112-19-0x0000000000400000-0x0000000000422000-memory.dmp

            memory/2824-0-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2824-10-0x0000000000400000-0x0000000000434000-memory.dmp