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Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/12/2023, 15:32

General

  • Target

    e6ec699b6839f02fec298d786d95244e.exe

  • Size

    2.5MB

  • MD5

    e6ec699b6839f02fec298d786d95244e

  • SHA1

    f1c26f1a8729f075f2f49c849be1d8b817bf1b6c

  • SHA256

    d86c9114ecca7a31539278705d7e50f9674a562e1382a6053e735d9d2b30942a

  • SHA512

    e579bbaa11529b8bdcb33771ef39e1b1461aa927bf7ce7f24c633aff2b14fe5367e0bdb259354942a7d95f82f34960f110a1bfad1db55b819de486f1a6d4971c

  • SSDEEP

    1536:Hn/Ay6PcOtb0LO6kWkVc/HfvfNdmNzyrhe:Hn/A7

Malware Config

Signatures

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Turns off Windows Defender SpyNet reporting 2 TTPs
  • Windows security bypass 2 TTPs 2 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Nirsoft 1 IoCs
  • Renames multiple (6433) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Windows security modification 2 TTPs 10 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 25 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe
    "C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Users\Admin\AppData\Local\Temp\154b79cd-7185-4c6f-b8e2-08cb3b383667\AdvancedRun.exe
      "C:\Users\Admin\AppData\Local\Temp\154b79cd-7185-4c6f-b8e2-08cb3b383667\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\154b79cd-7185-4c6f-b8e2-08cb3b383667\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
      2⤵
        PID:3924
        • C:\Users\Admin\AppData\Local\Temp\154b79cd-7185-4c6f-b8e2-08cb3b383667\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\154b79cd-7185-4c6f-b8e2-08cb3b383667\AdvancedRun.exe" /SpecialRun 4101d8 3924
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3092
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout 1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2376
        • C:\Windows\SysWOW64\timeout.exe
          timeout 1
          3⤵
          • Delays execution with timeout.exe
          PID:4084
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 1092
        2⤵
        • Program crash
        PID:4172
      • C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe
        "C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe"
        2⤵
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4496
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe" -Force
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:468
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3180
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        2⤵
        • Interacts with shadow copies
        PID:556
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        2⤵
        • Deletes backup catalog
        PID:2880
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4656
    • C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe
      "C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe" n4496
      1⤵
      • Checks computer location settings
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Users\Admin\AppData\Local\Temp\3b5429a0-cf4c-46c4-89c0-a86f834f3949\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\3b5429a0-cf4c-46c4-89c0-a86f834f3949\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\3b5429a0-cf4c-46c4-89c0-a86f834f3949\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5096
        • C:\Users\Admin\AppData\Local\Temp\3b5429a0-cf4c-46c4-89c0-a86f834f3949\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\3b5429a0-cf4c-46c4-89c0-a86f834f3949\AdvancedRun.exe" /SpecialRun 4101d8 5096
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3924
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout 1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4592
        • C:\Windows\SysWOW64\timeout.exe
          timeout 1
          3⤵
          • Delays execution with timeout.exe
          PID:5224
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe" -Force
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2872
      • C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe
        "C:\Users\Admin\AppData\Local\Temp\e6ec699b6839f02fec298d786d95244e.exe"
        2⤵
          PID:5316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1256
          2⤵
          • Program crash
          PID:5936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1544 -ip 1544
        1⤵
          PID:2088
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3360
        • C:\Windows\system32\wbengine.exe
          "C:\Windows\system32\wbengine.exe"
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4108
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:2328
        • C:\Windows\System32\vdsldr.exe
          C:\Windows\System32\vdsldr.exe -Embedding
          1⤵
            PID:3516
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1340 -ip 1340
            1⤵
              PID:5452

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • memory/468-22-0x0000000002930000-0x0000000002940000-memory.dmp

              Filesize

              64KB

            • memory/468-489-0x00000000078A0000-0x00000000078A8000-memory.dmp

              Filesize

              32KB

            • memory/468-431-0x00000000077C0000-0x00000000077D4000-memory.dmp

              Filesize

              80KB

            • memory/468-20-0x0000000002950000-0x0000000002986000-memory.dmp

              Filesize

              216KB

            • memory/468-21-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/468-26-0x0000000005B60000-0x0000000005BC6000-memory.dmp

              Filesize

              408KB

            • memory/468-24-0x0000000005320000-0x0000000005948000-memory.dmp

              Filesize

              6.2MB

            • memory/468-25-0x0000000005A00000-0x0000000005A22000-memory.dmp

              Filesize

              136KB

            • memory/468-23-0x0000000002930000-0x0000000002940000-memory.dmp

              Filesize

              64KB

            • memory/468-74-0x0000000002930000-0x0000000002940000-memory.dmp

              Filesize

              64KB

            • memory/468-37-0x0000000005DB0000-0x0000000006104000-memory.dmp

              Filesize

              3.3MB

            • memory/468-60-0x000000007F220000-0x000000007F230000-memory.dmp

              Filesize

              64KB

            • memory/468-42-0x0000000006250000-0x000000000626E000-memory.dmp

              Filesize

              120KB

            • memory/468-32-0x0000000005C40000-0x0000000005CA6000-memory.dmp

              Filesize

              408KB

            • memory/468-43-0x0000000006280000-0x00000000062CC000-memory.dmp

              Filesize

              304KB

            • memory/468-61-0x0000000007400000-0x0000000007432000-memory.dmp

              Filesize

              200KB

            • memory/468-882-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/468-75-0x0000000007440000-0x00000000074E3000-memory.dmp

              Filesize

              652KB

            • memory/468-78-0x00000000075F0000-0x00000000075FA000-memory.dmp

              Filesize

              40KB

            • memory/468-62-0x000000006FA40000-0x000000006FA8C000-memory.dmp

              Filesize

              304KB

            • memory/468-142-0x0000000007800000-0x0000000007896000-memory.dmp

              Filesize

              600KB

            • memory/468-197-0x0000000007780000-0x0000000007791000-memory.dmp

              Filesize

              68KB

            • memory/468-77-0x0000000007580000-0x000000000759A000-memory.dmp

              Filesize

              104KB

            • memory/468-76-0x0000000007BC0000-0x000000000823A000-memory.dmp

              Filesize

              6.5MB

            • memory/468-424-0x00000000077B0000-0x00000000077BE000-memory.dmp

              Filesize

              56KB

            • memory/468-472-0x00000000078C0000-0x00000000078DA000-memory.dmp

              Filesize

              104KB

            • memory/468-72-0x0000000006820000-0x000000000683E000-memory.dmp

              Filesize

              120KB

            • memory/468-73-0x0000000002930000-0x0000000002940000-memory.dmp

              Filesize

              64KB

            • memory/1340-44-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/1340-45-0x0000000005A80000-0x0000000005A90000-memory.dmp

              Filesize

              64KB

            • memory/1340-4527-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/1340-5146-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/1544-5-0x0000000006DE0000-0x0000000007384000-memory.dmp

              Filesize

              5.6MB

            • memory/1544-2-0x0000000005060000-0x00000000050FC000-memory.dmp

              Filesize

              624KB

            • memory/1544-3-0x00000000052D0000-0x00000000052E0000-memory.dmp

              Filesize

              64KB

            • memory/1544-59-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/1544-4-0x0000000002A00000-0x0000000002A72000-memory.dmp

              Filesize

              456KB

            • memory/1544-1-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/1544-0-0x00000000003A0000-0x0000000000622000-memory.dmp

              Filesize

              2.5MB

            • memory/2872-5201-0x00000000072C0000-0x00000000072D4000-memory.dmp

              Filesize

              80KB

            • memory/2872-4307-0x0000000006FE0000-0x0000000007083000-memory.dmp

              Filesize

              652KB

            • memory/2872-2839-0x0000000004880000-0x0000000004890000-memory.dmp

              Filesize

              64KB

            • memory/2872-2872-0x0000000004880000-0x0000000004890000-memory.dmp

              Filesize

              64KB

            • memory/2872-2808-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/2872-3303-0x0000000005D70000-0x0000000005DBC000-memory.dmp

              Filesize

              304KB

            • memory/2872-4252-0x000000006FB50000-0x000000006FB9C000-memory.dmp

              Filesize

              304KB

            • memory/2872-4183-0x000000007F080000-0x000000007F090000-memory.dmp

              Filesize

              64KB

            • memory/2872-4975-0x0000000007280000-0x0000000007291000-memory.dmp

              Filesize

              68KB

            • memory/2872-5556-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/4496-38-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/4496-40-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/4496-41-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/4496-79-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/5316-4526-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB