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Resubmissions

21/01/2024, 14:52

240121-r8syqaeac7 10

21/01/2024, 14:51

240121-r8k8waeac5 10

01/01/2024, 13:55

240101-q776kscacp 10

Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2024, 14:51

General

  • Target

    b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe

  • Size

    352KB

  • MD5

    4f88b5e510ecbd0adefdfc87c552289c

  • SHA1

    047ec67b8e3c001086284d7176b2d239db565fb5

  • SHA256

    b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273

  • SHA512

    75b86d6de4bec5285559f7e9a0dbf46df48dbdf78386023e5f8668a7814bc1db5322d8bf9d306cfd65175112b94366641d671175d59d3edacc3d2b2ba802f348

  • SSDEEP

    6144:X9PrHO8306KFnBCzDIZXY3HJmui45mkA2/1:drHBpgkDuoEuXbJ

Malware Config

Signatures

  • Renames multiple (123) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe
    "C:\Users\Admin\AppData\Local\Temp\b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\{372A2127-DF6F-AFBC-07E8-62C46839E3A5}.bat
      2⤵
        PID:4684
      • C:\Users\Admin\AppData\Roaming\dwa01.exe
        "C:\Users\Admin\AppData\Roaming\dwa01.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4588
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
            PID:1148
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c bcdedit /set {default} recoveryenabled No
            3⤵
              PID:1744
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c vssadmin Delete Shadows /All /Quiet
              3⤵
                PID:4928
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c start /max notepad.exe "C:\Users\Admin\RECOVER-FILES.HTML"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:4296
                • C:\Windows\SysWOW64\notepad.exe
                  notepad.exe "C:\Users\Admin\RECOVER-FILES.HTML"
                  4⤵
                    PID:2060
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\{22D712E8-E330-9277-B1FA-BA09FD3269F9}.bat
                  3⤵
                    PID:4780

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Temp\{22D712E8-E330-9277-B1FA-BA09FD3269F9}.bat

                Filesize

                120B

                MD5

                598c2707c8197e1a1fde5eed2bfb73bd

                SHA1

                4ce1f59601ca6f5892481bae3ec7530126711b24

                SHA256

                ce47464addcf6c7e68cb1597cd1cad319bb43f6905e06de11b5be32c3fffa8ff

                SHA512

                7247ac5b8e7fff4a8b1619de141a9eeea885a8887c4a5eb6eb3f8ce3f1061481a34ffa532658137f7ff96fb308570a6ea9595487451b7213bbed55af74c9487b

              • C:\Users\Admin\AppData\Local\Temp\{372A2127-DF6F-AFBC-07E8-62C46839E3A5}.bat

                Filesize

                132B

                MD5

                f16ecf9f57b99fcff16b149dd7cc31d1

                SHA1

                b3549ce4e882977a25fda4e2affe94826ef4055e

                SHA256

                a9dd2be9fd2bc62a2ced854662676283e02a138d350c5f5c3d0de1d7f81369fd

                SHA512

                cce03073a895771fe43fbcfb16cca1e6e2a0763b62ca0a53413b1196b01aeed77300abf7fac1017c952295e86080d35aad3aa4e2e79e12faa477a25a4a0909a1

              • C:\Users\Admin\AppData\Roaming\dwa01.exe

                Filesize

                352KB

                MD5

                4f88b5e510ecbd0adefdfc87c552289c

                SHA1

                047ec67b8e3c001086284d7176b2d239db565fb5

                SHA256

                b21f34ecfa7135153d506b3fde2a0d0bd23b44eccedc635cbfa474e321040273

                SHA512

                75b86d6de4bec5285559f7e9a0dbf46df48dbdf78386023e5f8668a7814bc1db5322d8bf9d306cfd65175112b94366641d671175d59d3edacc3d2b2ba802f348

              • C:\Users\Admin\Desktop\RECOVER-FILES.HTML

                Filesize

                4KB

                MD5

                33baa078b448a90305c10b86efa328a6

                SHA1

                f3bd12b6f201263750d47b258edc8675055274df

                SHA256

                97a6b72d011c09073ab29afc96712d4096205093c0ee26c2215ec9e81be35ad1

                SHA512

                242e3c4a79250ac348cc310ff4ba1218a68e149e98ef766ece5f5f943e6989d412286693b7e6ca5e935bcfd3b79c309f7dd58fe6d8a15624854e8a6ea026ac6c

              • memory/4588-56-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-39-0x00000000023B0000-0x0000000002419000-memory.dmp

                Filesize

                420KB

              • memory/4588-694-0x0000000003EF0000-0x0000000003F20000-memory.dmp

                Filesize

                192KB

              • memory/4588-689-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-71-0x0000000003EF0000-0x0000000003F20000-memory.dmp

                Filesize

                192KB

              • memory/4588-62-0x0000000003EF0000-0x0000000003F20000-memory.dmp

                Filesize

                192KB

              • memory/4588-61-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-60-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-59-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-58-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-57-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-47-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-36-0x00000000023B0000-0x0000000002419000-memory.dmp

                Filesize

                420KB

              • memory/4588-37-0x00000000023B0000-0x0000000002419000-memory.dmp

                Filesize

                420KB

              • memory/4588-38-0x00000000023B0000-0x0000000002419000-memory.dmp

                Filesize

                420KB

              • memory/4588-55-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-41-0x00000000023B0000-0x0000000002419000-memory.dmp

                Filesize

                420KB

              • memory/4588-43-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-44-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-42-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-49-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-50-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-46-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-48-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-45-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-40-0x00000000023B0000-0x0000000002419000-memory.dmp

                Filesize

                420KB

              • memory/4588-52-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-54-0x0000000003BE0000-0x0000000003CE0000-memory.dmp

                Filesize

                1024KB

              • memory/4588-53-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

                Filesize

                4KB

              • memory/4588-51-0x0000000003BE0000-0x0000000003BE1000-memory.dmp

                Filesize

                4KB

              • memory/4884-2-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-5-0x0000000003C00000-0x0000000003D00000-memory.dmp

                Filesize

                1024KB

              • memory/4884-1-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-4-0x0000000002470000-0x00000000024D9000-memory.dmp

                Filesize

                420KB

              • memory/4884-13-0x0000000003F10000-0x0000000003F40000-memory.dmp

                Filesize

                192KB

              • memory/4884-12-0x0000000003C00000-0x0000000003D00000-memory.dmp

                Filesize

                1024KB

              • memory/4884-11-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-9-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-10-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-8-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-3-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-7-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-6-0x0000000003C00000-0x0000000003C01000-memory.dmp

                Filesize

                4KB

              • memory/4884-0-0x0000000002470000-0x00000000024D9000-memory.dmp

                Filesize

                420KB