Overview

overview

10

Static

static

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

8

ﱞﱞﱞ�...ฺฺ

windows10_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

8

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows7_x64

10

win102

windows10_x64

10

win104

windows10_x64

10

win105

windows10_x64

8

win106

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
    60s
  • max time network
    62s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24-05-2021 05:31

Sharing

Copy URL
Twitter E-mail
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 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 WpnService
    1⤵
      PID:2796
    • 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:2748
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
          1⤵
            PID:2556
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
            1⤵
              PID:2520
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
              1⤵
                PID:1872
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s SENS
                1⤵
                  PID:1400
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                  1⤵
                    PID:1360
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s Themes
                    1⤵
                      PID:1176
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                      1⤵
                        PID:1100
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                        1⤵
                          PID:1052
                        • c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                          1⤵
                            PID:300
                          • 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:996
                            • 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:3384
                              • 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:1244
                            • 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:3156
                          • \??\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:1764
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Modifies registry class
                              PID:3596

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/300-169-0x000001D60EEB0000-0x000001D60EF20000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1052-158-0x0000020CBFE50000-0x0000020CBFEC0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1100-152-0x000001E936500000-0x000001E936570000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1176-175-0x000001D8B8D20000-0x000001D8B8D90000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1244-136-0x0000000004677000-0x0000000004778000-memory.dmp

                            Filesize

                            1.0MB

                            Download

                          • memory/1244-138-0x0000000000D60000-0x0000000000DBC000-memory.dmp

                            Filesize

                            368KB

                            Download

                          • memory/1360-184-0x0000023B8CB70000-0x0000023B8CBE0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1400-164-0x0000024478380000-0x00000244783F0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1764-139-0x0000026E87990000-0x0000026E879DB000-memory.dmp

                            Filesize

                            300KB

                            Download

                          • memory/1764-146-0x0000026E87D10000-0x0000026E87D80000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1872-170-0x000001B9F2860000-0x000001B9F28D0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2520-147-0x000001C8E7840000-0x000001C8E78B0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2556-140-0x000001B527B80000-0x000001B527BF0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2748-162-0x00000203D3A10000-0x00000203D3A80000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2788-186-0x000001E1DFE40000-0x000001E1DFEB0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2796-188-0x0000028C4A700000-0x0000028C4A770000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/3156-153-0x0000000002450000-0x0000000002451000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/3156-178-0x0000000002460000-0x0000000002469000-memory.dmp

                            Filesize

                            36KB

                            Download

                          • memory/3156-141-0x0000000000100000-0x0000000000101000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/3596-163-0x0000023A53700000-0x0000023A53770000-memory.dmp

                            Filesize

                            448KB

                            Download