Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2023 23:52

General

  • Target

    Loader.exe

  • Size

    44.2MB

  • MD5

    3717f7d447fa2e11b78085b70b4db53d

  • SHA1

    4fdceba008248c134f1ec61b16968816716b0140

  • SHA256

    cc566bd4e3bab54426f4940e6817ff0a1e0be39bfd2ece80cce4ee0c0674e02d

  • SHA512

    a6c942095ace315c77934ac2eff9f5535d992342abee31b8a2c328e694499c28ee71a3d9fb80351f9dfd62cb28c4eb73fb00563dae71f02fb6759c2c29e64ee2

  • SSDEEP

    786432:yte4pWy7IuSLAtMXnjj/o0nGsJqNdT8biIY9eZOtuhq+4J/EjXbF:yte4UuSLAiXnjj1k7gnaeZOEh74JkbF

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 9 IoCs
  • Checks BIOS information in registry 2 TTPs 18 IoCs

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

  • Themida packer 11 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 9 IoCs
  • Drops file in System32 directory 54 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
  • Drops file in Windows directory 36 IoCs
  • Program crash 9 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 17 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c Powercfg -h off
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3160
      • C:\Windows\system32\powercfg.exe
        Powercfg -h off
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4140
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1404 -s 876
      2⤵
      • Program crash
      PID:548
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 184 -p 1404 -ip 1404
    1⤵
      PID:2632
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:1660
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1016
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2068
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4276
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 1016 -s 708
          2⤵
          • Program crash
          PID:4684
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:368
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3388
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2244
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 368 -s 828
          2⤵
          • Program crash
          PID:1804
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4528
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2168
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4744
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 4528 -s 832
          2⤵
          • Program crash
          PID:872
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3832
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5052
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1836
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3832 -s 892
          2⤵
          • Program crash
          PID:520
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4656
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3280
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2768
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 4656 -s 836
          2⤵
          • Program crash
          PID:5032
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2272
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2780
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4708
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 2272 -s 888
          2⤵
          • Program crash
          PID:3556
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3932
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4572
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2252
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3932 -s 844
          2⤵
          • Program crash
          PID:2428
      • C:\Users\Admin\AppData\Local\Temp\Loader.exe
        "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
        1⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1776
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Powercfg -h off
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3368
          • C:\Windows\system32\powercfg.exe
            Powercfg -h off
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4160
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 1776 -s 840
          2⤵
          • Program crash
          PID:1376
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -pss -s 452 -p 1016 -ip 1016
        1⤵
          PID:1708
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -pss -s 444 -p 3832 -ip 3832
          1⤵
            PID:4984
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -pss -s 384 -p 4656 -ip 4656
            1⤵
              PID:2684
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -pss -s 184 -p 1776 -ip 1776
              1⤵
                PID:4328
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -pss -s 524 -p 3932 -ip 3932
                1⤵
                  PID:1212
                • C:\Windows\system32\WerFault.exe
                  C:\Windows\system32\WerFault.exe -pss -s 512 -p 2272 -ip 2272
                  1⤵
                    PID:1656
                  • C:\Windows\system32\WerFault.exe
                    C:\Windows\system32\WerFault.exe -pss -s 444 -p 4528 -ip 4528
                    1⤵
                      PID:2716
                    • C:\Windows\system32\WerFault.exe
                      C:\Windows\system32\WerFault.exe -pss -s 540 -p 368 -ip 368
                      1⤵
                        PID:4276
                      • C:\Windows\system32\taskmgr.exe
                        "C:\Windows\system32\taskmgr.exe" /4
                        1⤵
                        • Checks SCSI registry key(s)
                        • Modifies registry class
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of FindShellTrayWindow
                        • Suspicious use of SendNotifyMessage
                        PID:4284
                      • C:\Windows\System32\6l8ef4.exe
                        "C:\Windows\System32\6l8ef4.exe"
                        1⤵
                          PID:3000
                        • C:\Windows\System32\6l8ef4.exe
                          "C:\Windows\System32\6l8ef4.exe"
                          1⤵
                            PID:1500
                          • C:\Windows\System32\6l8ef4.exe
                            "C:\Windows\System32\6l8ef4.exe"
                            1⤵
                              PID:1148

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • memory/368-14-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/368-106-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1016-89-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1016-30-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1016-26-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1016-69-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1016-33-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1016-13-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1404-0-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1404-12-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1404-2-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1404-6-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1404-7-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1404-3-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1404-9-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1404-10-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1404-1-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/1776-99-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1776-102-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/1776-28-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/2272-104-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/2272-82-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/2272-19-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/3832-100-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/3832-41-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/3832-16-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/3932-98-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/3932-24-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/3932-103-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/4528-39-0x00007FF6FCE70000-0x00007FF6FDE70000-memory.dmp

                              Filesize

                              16.0MB

                            • memory/4528-105-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/4528-15-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/4656-101-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB

                            • memory/4656-18-0x00007FF9A1DF0000-0x00007FF9A1FE5000-memory.dmp

                              Filesize

                              2.0MB