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
    1793s
  • max time network
    1812s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    14-05-2021 18:23

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 2 IoCs
  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 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 Browser
    1⤵
      PID:2876
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s WpnService
      1⤵
        PID:2680
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
        1⤵
          PID:2672
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
          1⤵
            PID:2436
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
            1⤵
              PID:2424
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
              1⤵
                PID:1916
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s SENS
                1⤵
                  PID:1460
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                  1⤵
                    PID:1348
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s Themes
                    1⤵
                      PID:1236
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                      1⤵
                        PID:1120
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                        1⤵
                          PID:1028
                        • c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                          1⤵
                            PID:60
                          • 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:688
                            • 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:1944
                              • 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:3512
                            • 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:1628
                              • C:\Windows\system32\WerFault.exe
                                C:\Windows\system32\WerFault.exe -u -p 1628 -s 1304
                                3⤵
                                • Program crash
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1276
                          • \??\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:3012
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Modifies registry class
                              PID:204

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/60-149-0x0000028FDBA40000-0x0000028FDBAB0000-memory.dmp

                            Filesize

                            448KB

                          • memory/204-147-0x000001AC380D0000-0x000001AC38140000-memory.dmp

                            Filesize

                            448KB

                          • memory/1028-178-0x000001B5DE010000-0x000001B5DE080000-memory.dmp

                            Filesize

                            448KB

                          • memory/1120-176-0x000001F6EDDD0000-0x000001F6EDE40000-memory.dmp

                            Filesize

                            448KB

                          • memory/1236-184-0x0000014AC6740000-0x0000014AC67B0000-memory.dmp

                            Filesize

                            448KB

                          • memory/1348-186-0x000002683A770000-0x000002683A7E0000-memory.dmp

                            Filesize

                            448KB

                          • memory/1460-180-0x0000027EFBD80000-0x0000027EFBDF0000-memory.dmp

                            Filesize

                            448KB

                          • memory/1628-126-0x0000000000620000-0x0000000000621000-memory.dmp

                            Filesize

                            4KB

                          • memory/1628-140-0x0000000000D40000-0x0000000000D5C000-memory.dmp

                            Filesize

                            112KB

                          • memory/1628-148-0x0000000000A60000-0x0000000000A61000-memory.dmp

                            Filesize

                            4KB

                          • memory/1628-132-0x0000000000A50000-0x0000000000A51000-memory.dmp

                            Filesize

                            4KB

                          • memory/1628-171-0x0000000000DA0000-0x0000000000DA2000-memory.dmp

                            Filesize

                            8KB

                          • memory/1916-182-0x000001C4FF470000-0x000001C4FF4E0000-memory.dmp

                            Filesize

                            448KB

                          • memory/2424-172-0x000001D6F86D0000-0x000001D6F8740000-memory.dmp

                            Filesize

                            448KB

                          • memory/2436-174-0x0000027C27B80000-0x0000027C27BF0000-memory.dmp

                            Filesize

                            448KB

                          • memory/2672-188-0x000001885DA10000-0x000001885DA80000-memory.dmp

                            Filesize

                            448KB

                          • memory/2680-190-0x00000237FF270000-0x00000237FF2E0000-memory.dmp

                            Filesize

                            448KB

                          • memory/2876-135-0x0000015B9BB90000-0x0000015B9BBDB000-memory.dmp

                            Filesize

                            300KB

                          • memory/2876-143-0x0000015B9C110000-0x0000015B9C180000-memory.dmp

                            Filesize

                            448KB

                          • memory/3012-133-0x00000205CD930000-0x00000205CD9A0000-memory.dmp

                            Filesize

                            448KB

                          • memory/3512-129-0x0000000004DF0000-0x0000000004EF1000-memory.dmp

                            Filesize

                            1.0MB

                          • memory/3512-131-0x0000000003420000-0x000000000347C000-memory.dmp

                            Filesize

                            368KB