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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
    597s
  • max time network
    610s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24/05/2021, 05:31

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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 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 Schedule
    1⤵
      PID:596
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s Themes
      1⤵
        PID:1212
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
        1⤵
          PID:2476
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s Browser
          1⤵
            PID:2788
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s WpnService
            1⤵
              PID:2708
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
              1⤵
                PID:2696
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
                1⤵
                  PID:2424
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                  1⤵
                    PID:1852
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s SENS
                    1⤵
                      PID:1404
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                      1⤵
                        PID:1204
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                        1⤵
                          PID:1076
                        • c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                          1⤵
                            PID:68
                          • 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:620
                            • 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:3936
                              • 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:2272
                            • 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:564
                          • \??\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:988
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Modifies registry class
                              PID:3068

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

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                          Downloads

                          • memory/68-169-0x000001E321F00000-0x000001E321F70000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/564-158-0x00000000058D0000-0x00000000058D1000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/564-145-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/564-188-0x0000000003220000-0x0000000003229000-memory.dmp

                            Filesize

                            36KB

                            Download

                          • memory/596-186-0x0000019047C60000-0x0000019047CD0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/988-131-0x000001FF07180000-0x000001FF071F0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/988-125-0x000001FF06DF0000-0x000001FF06E3B000-memory.dmp

                            Filesize

                            300KB

                            Download

                          • memory/1076-184-0x000001F319E70000-0x000001F319EE0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1204-171-0x00000168EFD60000-0x00000168EFDD0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1212-164-0x000001F680D40000-0x000001F680DB0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1404-152-0x00000252C4950000-0x00000252C49C0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1852-159-0x0000028E5AEA0000-0x0000028E5AF10000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2272-129-0x0000000004680000-0x00000000046DC000-memory.dmp

                            Filesize

                            368KB

                            Download

                          • memory/2272-124-0x00000000010FE000-0x00000000011FF000-memory.dmp

                            Filesize

                            1.0MB

                            Download

                          • memory/2424-180-0x000001ACF5A90000-0x000001ACF5B00000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2476-175-0x00000141E4560000-0x00000141E45D0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2696-177-0x000001BB25840000-0x000001BB258B0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2708-183-0x000001F04BD80000-0x000001F04BDF0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2788-153-0x0000027922B70000-0x0000027922BE0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/3068-165-0x000002891C470000-0x000002891C4E0000-memory.dmp

                            Filesize

                            448KB

                            Download