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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
    300s
  • max time network
    302s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    16/05/2021, 11:05

General

  • Target

    keygen-step-4d.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 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 gpsvc
    1⤵
      PID:340
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s WpnService
      1⤵
        PID:2836
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
        1⤵
          PID:2852
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s Browser
          1⤵
            PID:2756
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
            1⤵
              PID:2608
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
              1⤵
                PID:2576
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                1⤵
                  PID:1908
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s SENS
                  1⤵
                    PID:1428
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                    1⤵
                      PID:1376
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Themes
                      1⤵
                        PID:1180
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                        1⤵
                          PID:1096
                        • c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                          1⤵
                            PID:68
                          • C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe
                            "C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe"
                            1⤵
                            • Suspicious use of WriteProcessMemory
                            PID:900
                            • 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:2228
                              • 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:3672
                            • 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:3796
                              • C:\Windows\system32\WerFault.exe
                                C:\Windows\system32\WerFault.exe -u -p 3796 -s 1344
                                3⤵
                                • Program crash
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                PID:2264
                          • \??\c:\windows\system32\svchost.exe
                            c:\windows\system32\svchost.exe -k netsvcs -s BITS
                            1⤵
                            • Suspicious use of SetThreadContext
                            • Modifies registry class
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:1004
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Modifies registry class
                              PID:1140

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/68-183-0x0000027FAC210000-0x0000027FAC280000-memory.dmp

                            Filesize

                            448KB

                          • memory/340-174-0x0000026116740000-0x00000261167B0000-memory.dmp

                            Filesize

                            448KB

                          • memory/1004-157-0x0000021FCB2D0000-0x0000021FCB31B000-memory.dmp

                            Filesize

                            300KB

                          • memory/1004-159-0x0000021FCB650000-0x0000021FCB6C0000-memory.dmp

                            Filesize

                            448KB

                          • memory/1096-181-0x0000029F00770000-0x0000029F007E0000-memory.dmp

                            Filesize

                            448KB

                          • memory/1140-175-0x00000165AC7C0000-0x00000165AC830000-memory.dmp

                            Filesize

                            448KB

                          • memory/1180-189-0x0000026034FB0000-0x0000026035020000-memory.dmp

                            Filesize

                            448KB

                          • memory/1376-160-0x000002AD6F400000-0x000002AD6F470000-memory.dmp

                            Filesize

                            448KB

                          • memory/1428-185-0x000001F56A200000-0x000001F56A270000-memory.dmp

                            Filesize

                            448KB

                          • memory/1908-187-0x000001430C400000-0x000001430C470000-memory.dmp

                            Filesize

                            448KB

                          • memory/2576-179-0x00000154C7CD0000-0x00000154C7D40000-memory.dmp

                            Filesize

                            448KB

                          • memory/2608-177-0x000002209B490000-0x000002209B500000-memory.dmp

                            Filesize

                            448KB

                          • memory/2756-165-0x0000028AEBFA0000-0x0000028AEC010000-memory.dmp

                            Filesize

                            448KB

                          • memory/2836-173-0x000001B333A40000-0x000001B333AB0000-memory.dmp

                            Filesize

                            448KB

                          • memory/2852-166-0x000001D2CBB40000-0x000001D2CBBB0000-memory.dmp

                            Filesize

                            448KB

                          • memory/3672-156-0x0000000001040000-0x000000000109C000-memory.dmp

                            Filesize

                            368KB

                          • memory/3672-126-0x0000000000D6D000-0x0000000000E6E000-memory.dmp

                            Filesize

                            1.0MB

                          • memory/3796-172-0x000000001B740000-0x000000001B742000-memory.dmp

                            Filesize

                            8KB

                          • memory/3796-133-0x0000000002D70000-0x0000000002D71000-memory.dmp

                            Filesize

                            4KB

                          • memory/3796-130-0x0000000001390000-0x00000000013AC000-memory.dmp

                            Filesize

                            112KB

                          • memory/3796-129-0x0000000001370000-0x0000000001371000-memory.dmp

                            Filesize

                            4KB

                          • memory/3796-127-0x0000000000C70000-0x0000000000C71000-memory.dmp

                            Filesize

                            4KB