Analysis

  • max time kernel
    150s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/06/2024, 22:30

General

  • Target
    bin/instsvc.bat
  • Size 2KB
  • Sample240605-2e4s8sag81
  • SHA256 b1f3b4370fa8e86d8d86a7ee5dbaccaff73f6fc2f04b5ff43205751d1c152918
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 18 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 55 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\bin\instsvc.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_53_in
      2⤵
      • Modifies Windows Firewall
      PID:1712
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_80_in
      2⤵
      • Modifies Windows Firewall
      PID:5080
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_443_in
      2⤵
      • Modifies Windows Firewall
      PID:5044
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_19002_in
      2⤵
      • Modifies Windows Firewall
      PID:3008
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_19003_in
      2⤵
      • Modifies Windows Firewall
      PID:2100
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_19004_in
      2⤵
      • Modifies Windows Firewall
      PID:3720
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_19003_out
      2⤵
      • Modifies Windows Firewall
      PID:4360
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_19004_out
      2⤵
      • Modifies Windows Firewall
      PID:5052
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall delete rule name=NxFilter_1813_in
      2⤵
      • Modifies Windows Firewall
      PID:2400
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_53_in protocol=UDP dir=in localport=53 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:5048
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_80_in protocol=TCP dir=in localport=80 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:4616
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_443_in protocol=TCP dir=in localport=443 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:4820
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_19002_in protocol=TCP dir=in localport=19002 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:5036
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_19003_in protocol=TCP dir=in localport=19003 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:3232
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_19004_in protocol=TCP dir=in localport=19004 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:4608
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_19003_out protocol=TCP dir=out remoteport=19003 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:4976
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_19004_out protocol=TCP dir=out remoteport=19004 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:744
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name=NxFilter_1813_in protocol=UDP dir=in localport=1813 action=allow
      2⤵
      • Modifies Windows Firewall
      PID:1340
    • C:\Users\Admin\AppData\Local\Temp\nxwrapper.exe
      nxwrapper.exe --startup=auto install
      2⤵
        PID:3144
      • C:\Windows\system32\net.exe
        net start NxFilter
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1908
        • C:\Windows\system32\net1.exe
          C:\Windows\system32\net1 start NxFilter
          3⤵
            PID:4272
      • C:\Users\Admin\AppData\Local\Temp\nxwrapper.exe
        "C:\Users\Admin\AppData\Local\Temp\nxwrapper.exe"
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:3012
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c echo %PATH%
          2⤵
            PID:2732
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c "C:/Users/Admin/AppData/Local/Temp/bin/startup.bat"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4204
            • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
              java -Djava.net.preferIPv4Stack=true -Xmx768m -cp "C:\Users\Admin\AppData\Local\Temp"\nxd.jar;"C:\Users\Admin\AppData\Local\Temp"\lib\*; nxd.Main
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1680
              • C:\Windows\system32\icacls.exe
                C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
                4⤵
                • Modifies file permissions
                PID:4320
              • C:\Windows\System32\hostname.exe
                hostname
                4⤵
                  PID:2960

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                3903daac9bc4a3b7.timestamp

                • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
                • Size 46B
                • SHA256 2386d15c79b84cda7016a964d83f240309aed6a8ce0c328c1659202430d1055f
                • MD5 SHA1 SHA512

                log4j.properties

                • Path C:\Users\Admin\AppData\Local\Temp\conf\log4j.properties
                • Size 565B
                • SHA256 9626eae07344b24ec72a8f03c0880aa3ea8dde7c151662c073af7a75af23a515
                • MD5 SHA1 SHA512

                blacklist.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\blacklist.lock.db
                • Size 103B
                • SHA256 9ee84e97202df9347df710e29d2283ec36a3cab87c5211f6965bec874e330926
                • MD5 SHA1 SHA512

                blacklist.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\blacklist.lock.db
                • Size 103B
                • SHA256 f41bda40e8494a770a51816fc9a807f9ebfd0234f86e0c6093f4f8d7470acaee
                • MD5 SHA1 SHA512

                config.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\config.lock.db
                • Size 103B
                • SHA256 315d2657e7413e3f570ca09771417fa96c2542a4be727e5e86d18624b1272963
                • MD5 SHA1 SHA512

                config.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\config.lock.db
                • Size 103B
                • SHA256 66643f8df851601048846f9d368bf6e72f8bdd6720f2c7e6f32fd4b6229d6af8
                • MD5 SHA1 SHA512

                config.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\config.lock.db
                • Size 103B
                • SHA256 1aabc75b45c849ae0f500dedc397eae0d9c65b400fea09d840ddc610c2049dd1
                • MD5 SHA1 SHA512

                jahaslist.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\jahaslist.lock.db
                • Size 103B
                • SHA256 2f944dea5523e4a63a52993bf6110ffa6136d4f8c21ffbc1b4388c73fb8eba95
                • MD5 SHA1 SHA512

                jahaslist.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\jahaslist.lock.db
                • Size 103B
                • SHA256 61778e2ed9cdc066247b6033f83e92b382dd0b0ee2d547297193fa6715424fa2
                • MD5 SHA1 SHA512

                jahaslist.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\jahaslist.lock.db
                • Size 103B
                • SHA256 a62467653be4408faa1bb50d232519a83f01f7c33ea0b7993b001a2c1f9c8aef
                • MD5 SHA1 SHA512

                komcache.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\komcache.lock.db
                • Size 103B
                • SHA256 51601075359ce1c437ccde52955b011f23df9479e80fa4f33946f9ef91d44644
                • MD5 SHA1 SHA512

                komcache.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\komcache.lock.db
                • Size 103B
                • SHA256 f1870ef1e72c26363add17a643913883aeefbd29bed65848c1891b2c3bac1aac
                • MD5 SHA1 SHA512

                komcache.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\komcache.lock.db
                • Size 103B
                • SHA256 d3a457c2ae9f41c4b092a6c2cb42222ee5e627962125bd36749f151f45edb9b9
                • MD5 SHA1 SHA512

                local.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\local.lock.db
                • Size 103B
                • SHA256 978f44877b78bed6f2d28dd6456c70b9c4695c46d752e11fe2c12b1d4c775e6b
                • MD5 SHA1 SHA512

                local.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\local.lock.db
                • Size 103B
                • SHA256 ffb75a943a307e1e1c0f10def1681736640106b953cc31ba4d3127f7d74b015b
                • MD5 SHA1 SHA512

                local.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\local.lock.db
                • Size 103B
                • SHA256 711e7bcd4e19508e799c004b93380ae2a6b075cec4f9f927ff4ba9e33b91c1d3
                • MD5 SHA1 SHA512

                pstcache.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\pstcache.lock.db
                • Size 103B
                • SHA256 f086c1122d96fd9f0441d8d0f3c9f2fa367efee1553ceb95be781f65d181b0c0
                • MD5 SHA1 SHA512

                pstcache.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\pstcache.lock.db
                • Size 103B
                • SHA256 62bde7caba3efc61416f81669db38b8f3393cc4865086cceb2b73cbfb3574fdf
                • MD5 SHA1 SHA512

                pstcache.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\pstcache.lock.db
                • Size 103B
                • SHA256 6b5c2279cae192bb3b7a6d69d4eb0b26a2e274a36a47b5af3ee0324c4f500508
                • MD5 SHA1 SHA512

                traffic.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\traffic.lock.db
                • Size 103B
                • SHA256 f7a58cc74430edd006bdc025872b52c6f1e656779169f779cf4d5f4eed7508d7
                • MD5 SHA1 SHA512

                traffic.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\traffic.lock.db
                • Size 103B
                • SHA256 c85c9961d08d81e6496cd69b1a284d3642a6189505cb07f63b4e0eccae354ae0
                • MD5 SHA1 SHA512

                traffic.lock.db

                • Path C:\Users\Admin\AppData\Local\Temp\db\traffic.lock.db
                • Size 103B
                • SHA256 686065b293bd009bae70a3d615ccabf08d0e641f46d6aa9eb810bee41528fe35
                • MD5 SHA1 SHA512

                memory/3012-57-0x000000001E8C0000-0x000000001E8DA000-memory.dmp

                memory/3012-890-0x0000000000400000-0x000000000050A000-memory.dmp

                memory/3012-74-0x0000000000400000-0x000000000050A000-memory.dmp

                memory/3144-24-0x000000001E9B0000-0x000000001E9B7000-memory.dmp

                memory/3144-16-0x000000001ECB0000-0x000000001ECBD000-memory.dmp

                memory/3144-0-0x0000000000400000-0x000000000050A000-memory.dmp

                memory/3144-12-0x000000001E7D0000-0x000000001E7D9000-memory.dmp

                memory/3144-28-0x000000001E1E0000-0x000000001E1EE000-memory.dmp

                memory/3144-34-0x000000001E1D0000-0x000000001E1DC000-memory.dmp

                memory/3144-31-0x0000000010000000-0x0000000010016000-memory.dmp

                memory/3144-20-0x000000001E8C0000-0x000000001E8DA000-memory.dmp

                memory/3144-8-0x000000001E7A0000-0x000000001E7BE000-memory.dmp

                memory/3144-2-0x000000001E000000-0x000000001E0F1000-memory.dmp

                memory/3144-5-0x000000001E1B0000-0x000000001E1BF000-memory.dmp

                memory/3144-37-0x0000000000400000-0x000000000050A000-memory.dmp