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Resubmissions

12/11/2024, 01:29

241112-bwgrxs1gnf 10

08/07/2021, 12:18

210708-8z6d5h8z2n 10

06/07/2021, 17:53

210706-g6we6sa7sa 10

19/06/2021, 18:17

210619-vr8bj2dzfn 10

17/06/2021, 21:39

210617-a9cvlnmrbx 10

11/06/2021, 17:26

210611-wvab1yw2tj 10

08/06/2021, 06:47

210608-qrbpch3y46 10

08/06/2021, 06:47

210608-64tndgm1ln 10

05/06/2021, 18:40

210605-cd6qpr55sx 10

04/06/2021, 11:56

210604-5c416rs3ns 10

Analysis

  • max time kernel
    1799s
  • max time network
    1813s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    16/05/2021, 11:05

General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
    1⤵
      PID:1092
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s SENS
      1⤵
        PID:1436
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Browser
        1⤵
          PID:2688
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s WpnService
          1⤵
            PID:2524
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
            1⤵
              PID:2508
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2372
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
              1⤵
                PID:2360
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                1⤵
                  PID:1900
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                  1⤵
                    PID:1344
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s Themes
                    1⤵
                      PID:1276
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                      1⤵
                        PID:1032
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                        1⤵
                          PID:340
                        • C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe
                          "C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe"
                          1⤵
                          • Suspicious use of WriteProcessMemory
                          PID:584
                          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe
                            "C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe"
                            2⤵
                            • Executes dropped EXE
                            • Drops file in Program Files directory
                            • Suspicious use of SetWindowsHookEx
                            • Suspicious use of WriteProcessMemory
                            PID:992
                            • C:\Windows\SysWOW64\rundll32.exe
                              "C:\Windows\System32\rundll32.exe" "C:\Program Files\install.dll",install
                              3⤵
                              • Loads dropped DLL
                              • Modifies registry class
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              PID:200
                          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe
                            "C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe"
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of AdjustPrivilegeToken
                            PID:4060
                            • C:\Windows\system32\WerFault.exe
                              C:\Windows\system32\WerFault.exe -u -p 4060 -s 1304
                              3⤵
                              • Program crash
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1840
                        • \??\c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s BITS
                          1⤵
                          • Suspicious use of SetThreadContext
                          • Modifies data under HKEY_USERS
                          • Modifies registry class
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          • Suspicious use of WriteProcessMemory
                          PID:3392
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k SystemNetworkService
                            2⤵
                            • Modifies registry class
                            PID:3356

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/200-144-0x0000000004520000-0x000000000457C000-memory.dmp

                          Filesize

                          368KB

                        • memory/200-142-0x000000000426F000-0x0000000004370000-memory.dmp

                          Filesize

                          1.0MB

                        • memory/340-171-0x000001E8EF760000-0x000001E8EF7D0000-memory.dmp

                          Filesize

                          448KB

                        • memory/1032-160-0x000001DCEFA60000-0x000001DCEFAD0000-memory.dmp

                          Filesize

                          448KB

                        • memory/1092-155-0x000001D848570000-0x000001D8485E0000-memory.dmp

                          Filesize

                          448KB

                        • memory/1276-177-0x0000020FAD340000-0x0000020FAD3B0000-memory.dmp

                          Filesize

                          448KB

                        • memory/1344-186-0x000001AFC0120000-0x000001AFC0190000-memory.dmp

                          Filesize

                          448KB

                        • memory/1436-166-0x000002AD45140000-0x000002AD451B0000-memory.dmp

                          Filesize

                          448KB

                        • memory/1900-172-0x0000015957BA0000-0x0000015957C10000-memory.dmp

                          Filesize

                          448KB

                        • memory/2360-143-0x000002806CBB0000-0x000002806CC20000-memory.dmp

                          Filesize

                          448KB

                        • memory/2372-150-0x00000253F9840000-0x00000253F98B0000-memory.dmp

                          Filesize

                          448KB

                        • memory/2372-146-0x00000253F9050000-0x00000253F909B000-memory.dmp

                          Filesize

                          300KB

                        • memory/2508-188-0x000001B9DB430000-0x000001B9DB4A0000-memory.dmp

                          Filesize

                          448KB

                        • memory/2524-190-0x000001DC1BE80000-0x000001DC1BEF0000-memory.dmp

                          Filesize

                          448KB

                        • memory/2688-165-0x000002A38BAA0000-0x000002A38BB10000-memory.dmp

                          Filesize

                          448KB

                        • memory/3356-163-0x000002575F640000-0x000002575F6B0000-memory.dmp

                          Filesize

                          448KB

                        • memory/3392-149-0x000001D238470000-0x000001D2384E0000-memory.dmp

                          Filesize

                          448KB

                        • memory/4060-136-0x0000000000BD0000-0x0000000000BEC000-memory.dmp

                          Filesize

                          112KB

                        • memory/4060-130-0x00000000009F0000-0x00000000009F1000-memory.dmp

                          Filesize

                          4KB

                        • memory/4060-178-0x0000000000C20000-0x0000000000C22000-memory.dmp

                          Filesize

                          8KB

                        • memory/4060-126-0x00000000005C0000-0x00000000005C1000-memory.dmp

                          Filesize

                          4KB

                        • memory/4060-138-0x0000000000C00000-0x0000000000C01000-memory.dmp

                          Filesize

                          4KB