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
    1800s
  • max time network
    1801s
  • 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:340
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s SENS
      1⤵
        PID:1376
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Browser
        1⤵
          PID:2840
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s WpnService
          1⤵
            PID:2696
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
            1⤵
              PID:2680
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
              1⤵
                PID:2440
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
                1⤵
                  PID:2432
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                  1⤵
                    PID:1952
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                    1⤵
                      PID:1332
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Themes
                      1⤵
                        PID:1184
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                        1⤵
                          PID:1088
                        • c:\windows\system32\svchost.exe
                          c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                          1⤵
                            PID:1028
                          • 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:856
                            • 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:2952
                              • 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:184
                            • 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:2392
                          • \??\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:1156
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Modifies registry class
                              PID:736

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

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                          Downloads

                          • memory/184-146-0x0000000003470000-0x00000000034CC000-memory.dmp

                            Filesize

                            368KB

                            Download

                          • memory/184-126-0x0000000004E4E000-0x0000000004F4F000-memory.dmp

                            Filesize

                            1.0MB

                            Download

                          • memory/340-174-0x0000022506460000-0x00000225064D0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/736-169-0x000001E2A72D0000-0x000001E2A7340000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1028-188-0x000001AC37540000-0x000001AC375B0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1088-186-0x00000209B2EA0000-0x00000209B2F10000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1156-160-0x00000239B4500000-0x00000239B4570000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1184-161-0x0000017215F60000-0x0000017215FD0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1332-168-0x000001B9AF370000-0x000001B9AF3E0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1376-151-0x00000221099D0000-0x0000022109A40000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/1376-148-0x0000022109250000-0x000002210929B000-memory.dmp

                            Filesize

                            300KB

                            Download

                          • memory/1952-156-0x000002C721B40000-0x000002C721BB0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2392-155-0x0000000004D10000-0x0000000004D11000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/2392-138-0x0000000000430000-0x0000000000431000-memory.dmp

                            Filesize

                            4KB

                            Download

                          • memory/2392-178-0x0000000004BA0000-0x0000000004BA9000-memory.dmp

                            Filesize

                            36KB

                            Download

                          • memory/2432-181-0x0000019A1AA60000-0x0000019A1AAD0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2440-184-0x000001D4A3FB0000-0x000001D4A4020000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2680-175-0x000002C271BD0000-0x000002C271C40000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2696-182-0x000001F4C8F80000-0x000001F4C8FF0000-memory.dmp

                            Filesize

                            448KB

                            Download

                          • memory/2840-167-0x000001C578550000-0x000001C5785C0000-memory.dmp

                            Filesize

                            448KB

                            Download