Overview

overview

10

Static

static

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

10

ﱞﱞﱞ�...ฺฺ

windows10_x64

8

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

8

ﱞﱞﱞ�...ﱞﱞ

windows7_x64

10

win102

windows10_x64

8

win104

windows10_x64

10

win105

windows10_x64

10

win106

windows10_x64

8

win103

windows10_x64

10

win101

windows10_x64

8

win100

windows10_x64

10

Resubmissions

24-05-2021 05:31

210524-b4dx7j71fj 10

21-05-2021 13:30

210521-r42mg8cghe 10

Analysis

  • max time kernel
    1797s
  • max time network
    1800s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-05-2021 13:30

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Report Analysis Logs

General

  • Target

    keygen-step-4.exe

  • Size

    5.6MB

  • MD5

    a110ce3f7366c6bb12553ea17a793110

  • SHA1

    8e10076496347d6324382f20968f3b7c8516eedf

  • SHA256

    0e63f296fdc309cb1e487cd1a549d029d2a9144b8a050db274901030dc6ec0f3

  • SHA512

    dc9103da71a1143365f3c7f39c4a316a9b9cc6e337b601a95d13d68bba777d2145d79a9d44ac96edce71775819e4d4bb2bb0cf7e49627163237ec3580b25c3cf

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
    1⤵
      PID:68
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s SENS
      1⤵
        PID:1388
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s WpnService
        1⤵
          PID:2804
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
          1⤵
            PID:2788
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s Browser
            1⤵
              PID:2772
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
              1⤵
                PID:2528
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
                1⤵
                  PID:2516
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                  1⤵
                    PID:1848
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                    1⤵
                      PID:1280
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Themes
                      1⤵
                        PID:1204
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                        1⤵
                          PID:1072
                        • c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                          1⤵
                            PID:684
                          • 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:624
                            • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Crack.exe
                              "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Crack.exe"
                              2⤵
                              • Executes dropped EXE
                              • Checks computer location settings
                              • Modifies registry class
                              • Suspicious use of WriteProcessMemory
                              PID:1016
                              • C:\Windows\SysWOW64\rUNdlL32.eXe
                                "C:\Windows\system32\rUNdlL32.eXe" "C:\Users\Admin\AppData\Local\Temp\install.dll",setuser
                                3⤵
                                • Loads dropped DLL
                                • Modifies registry class
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of WriteProcessMemory
                                PID:3124
                            • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ABCbrow.exe
                              "C:\Users\Admin\AppData\Local\Temp\RarSFX0\ABCbrow.exe"
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2408
                          • \??\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:1228
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Modifies registry class
                              PID:2292

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

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                          Downloads

                          • memory/68-178-0x00000178CDD60000-0x00000178CDDD0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/684-188-0x0000024816010000-0x0000024816080000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1072-186-0x00000207F6760000-0x00000207F67D0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1204-163-0x000001CC611B0000-0x000001CC61220000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1228-151-0x0000022078020000-0x0000022078090000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1280-168-0x000001CC40060000-0x000001CC400D0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1388-152-0x000001263AA70000-0x000001263AAE0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1388-148-0x000001263A810000-0x000001263A85B000-memory.dmp

                            Filesize

                            300KB

                            Download

                          • memory/1848-158-0x00000200F0B20000-0x00000200F0B90000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2292-169-0x0000027D38950000-0x0000027D389C0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2408-142-0x00000000004F0000-0x00000000004F1000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/2408-157-0x0000000004E40000-0x0000000004E41000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/2408-180-0x0000000000E80000-0x0000000000E89000-memory.dmp

                            Filesize

                            36KB

                            Download

                          • memory/2516-182-0x00000238D2D40000-0x00000238D2DB0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2528-138-0x00000215CC340000-0x00000215CC342000-memory.dmp

                            Filesize

                            8KB

                            Download

                          • memory/2528-184-0x00000215CCC40000-0x00000215CCCB0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2772-167-0x00000292630C0000-0x0000029263130000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2788-173-0x00000264C0390000-0x00000264C0400000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2804-181-0x0000028F1D900000-0x0000028F1D970000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/3124-146-0x00000000008A0000-0x00000000008FC000-memory.dmp

                            Filesize

                            368KB

                            Download

                          • memory/3124-145-0x0000000004308000-0x0000000004409000-memory.dmp

                            Filesize

                            1.0MB

                            Download