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Analysis

  • max time kernel
    121s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2023, 13:54

General

  • Target

    NEAS.NEAS686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1cexeexe_JC.exe

  • Size

    307KB

  • MD5

    ef70b147c0a5d36421a2e3a444d24f2c

  • SHA1

    8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb

  • SHA256

    686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

  • SHA512

    788101bf791f3cba949547b35eda3940e43dec2893343f0e4f75aa4479e6985452ab8d92e7e84b54b8597955431080208ed845f72e1f6230377668985696de56

  • SSDEEP

    6144:a7bWZGyntnUkg3RqWJLdb54Y4y2egsM7u67LnAOZiZVvL:a7a9U/3RXJP4Ts8u67LGVvL

Malware Config

Extracted

Family

stealc

C2

http://77.91.97.146

Attributes
  • url_path

    /b5186114a247f330.php

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Stealc

    Stealc is an infostealer written in C++.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.NEAS686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1cexeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.NEAS686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1cexeexe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe
      "C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3828
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:4768
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "Utsysc.exe" /P "Admin:N"&&CACLS "Utsysc.exe" /P "Admin:R" /E&&echo Y|CACLS "..\3df9cdab86" /P "Admin:N"&&CACLS "..\3df9cdab86" /P "Admin:R" /E&&Exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2636
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" echo Y"
          4⤵
            PID:3028
          • C:\Windows\SysWOW64\cacls.exe
            CACLS "Utsysc.exe" /P "Admin:N"
            4⤵
              PID:2828
            • C:\Windows\SysWOW64\cacls.exe
              CACLS "Utsysc.exe" /P "Admin:R" /E
              4⤵
                PID:1132
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                4⤵
                  PID:3140
                • C:\Windows\SysWOW64\cacls.exe
                  CACLS "..\3df9cdab86" /P "Admin:N"
                  4⤵
                    PID:492
                  • C:\Windows\SysWOW64\cacls.exe
                    CACLS "..\3df9cdab86" /P "Admin:R" /E
                    4⤵
                      PID:2896
                  • C:\Users\Admin\AppData\Roaming\1000004000\P6aAurfUFmnG.exe
                    "C:\Users\Admin\AppData\Roaming\1000004000\P6aAurfUFmnG.exe"
                    3⤵
                    • Checks computer location settings
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Checks processor information in registry
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of WriteProcessMemory
                    PID:560
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Roaming\1000004000\P6aAurfUFmnG.exe" & del "C:\ProgramData\*.dll"" & exit
                      4⤵
                      • Suspicious use of WriteProcessMemory
                      PID:64
                      • C:\Windows\SysWOW64\timeout.exe
                        timeout /t 5
                        5⤵
                        • Delays execution with timeout.exe
                        PID:4556
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 560 -s 2136
                      4⤵
                      • Program crash
                      PID:3872
                  • C:\Windows\SysWOW64\rundll32.exe
                    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\491b681d623b85\cred64.dll, Main
                    3⤵
                    • Loads dropped DLL
                    • Suspicious use of WriteProcessMemory
                    PID:876
                    • C:\Windows\system32\rundll32.exe
                      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\491b681d623b85\cred64.dll, Main
                      4⤵
                      • Loads dropped DLL
                      PID:4936
                  • C:\Windows\SysWOW64\rundll32.exe
                    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\491b681d623b85\clip64.dll, Main
                    3⤵
                    • Blocklisted process makes network request
                    • Loads dropped DLL
                    PID:2900
              • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe
                C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe
                1⤵
                • Executes dropped EXE
                PID:4912
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 560 -ip 560
                1⤵
                  PID:1312
                • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe
                  C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe
                  1⤵
                  • Executes dropped EXE
                  PID:2376

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\ProgramData\mozglue.dll

                  Filesize

                  593KB

                  MD5

                  c8fd9be83bc728cc04beffafc2907fe9

                  SHA1

                  95ab9f701e0024cedfbd312bcfe4e726744c4f2e

                  SHA256

                  ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

                  SHA512

                  fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

                • C:\ProgramData\mozglue.dll

                  Filesize

                  593KB

                  MD5

                  c8fd9be83bc728cc04beffafc2907fe9

                  SHA1

                  95ab9f701e0024cedfbd312bcfe4e726744c4f2e

                  SHA256

                  ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

                  SHA512

                  fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

                • C:\ProgramData\nss3.dll

                  Filesize

                  2.0MB

                  MD5

                  1cc453cdf74f31e4d913ff9c10acdde2

                  SHA1

                  6e85eae544d6e965f15fa5c39700fa7202f3aafe

                  SHA256

                  ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

                  SHA512

                  dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

                • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe

                  Filesize

                  307KB

                  MD5

                  ef70b147c0a5d36421a2e3a444d24f2c

                  SHA1

                  8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb

                  SHA256

                  686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

                  SHA512

                  788101bf791f3cba949547b35eda3940e43dec2893343f0e4f75aa4479e6985452ab8d92e7e84b54b8597955431080208ed845f72e1f6230377668985696de56

                • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe

                  Filesize

                  307KB

                  MD5

                  ef70b147c0a5d36421a2e3a444d24f2c

                  SHA1

                  8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb

                  SHA256

                  686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

                  SHA512

                  788101bf791f3cba949547b35eda3940e43dec2893343f0e4f75aa4479e6985452ab8d92e7e84b54b8597955431080208ed845f72e1f6230377668985696de56

                • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe

                  Filesize

                  307KB

                  MD5

                  ef70b147c0a5d36421a2e3a444d24f2c

                  SHA1

                  8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb

                  SHA256

                  686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

                  SHA512

                  788101bf791f3cba949547b35eda3940e43dec2893343f0e4f75aa4479e6985452ab8d92e7e84b54b8597955431080208ed845f72e1f6230377668985696de56

                • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe

                  Filesize

                  307KB

                  MD5

                  ef70b147c0a5d36421a2e3a444d24f2c

                  SHA1

                  8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb

                  SHA256

                  686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

                  SHA512

                  788101bf791f3cba949547b35eda3940e43dec2893343f0e4f75aa4479e6985452ab8d92e7e84b54b8597955431080208ed845f72e1f6230377668985696de56

                • C:\Users\Admin\AppData\Local\Temp\3df9cdab86\Utsysc.exe

                  Filesize

                  307KB

                  MD5

                  ef70b147c0a5d36421a2e3a444d24f2c

                  SHA1

                  8c5aa0cbc8533bba3d010f2126a6a8b9424a29fb

                  SHA256

                  686843d48819c4c53e03cb1eca5a4a40082fe24c201b01ce6c0eecbe7c5a7e1c

                  SHA512

                  788101bf791f3cba949547b35eda3940e43dec2893343f0e4f75aa4479e6985452ab8d92e7e84b54b8597955431080208ed845f72e1f6230377668985696de56

                • C:\Users\Admin\AppData\Local\Temp\511405631352

                  Filesize

                  78KB

                  MD5

                  6b3f25022391bce8f9b2008561592026

                  SHA1

                  0fea086bd7644ce2f849abf82613aee41dbbcd79

                  SHA256

                  5a6a2693a20e0e1e0e75d55e2fc7623a13a951125ba7a46ff72a5c26a5a33d16

                  SHA512

                  33460ed1043915be2ca2c8376ce7585004bb956654308698d7ae06d4c59adbf3df4ba8ae9203ca991f2e48226bb66bd25cffd59e34c18331a9fe21d42c5a0a0f

                • C:\Users\Admin\AppData\Roaming\1000004000\P6aAurfUFmnG.exe

                  Filesize

                  237KB

                  MD5

                  2272d1fd724998ca2962707b07db30af

                  SHA1

                  06e34f84cc20f9c0a62e168e0abdac9e8d2b8873

                  SHA256

                  fad272c7c89b882083723b28fe821e59e089863d5b2b1f23a1a531cca59c4e24

                  SHA512

                  23fc7f0bc19e88fc7acf3932c8319390804e5fb54db5a44af457ea5387b0b82ec1a3011dd648c6c912bff9fccf66705518c9f5ac4934abc299434ac38d103ff4

                • C:\Users\Admin\AppData\Roaming\1000004000\P6aAurfUFmnG.exe

                  Filesize

                  237KB

                  MD5

                  2272d1fd724998ca2962707b07db30af

                  SHA1

                  06e34f84cc20f9c0a62e168e0abdac9e8d2b8873

                  SHA256

                  fad272c7c89b882083723b28fe821e59e089863d5b2b1f23a1a531cca59c4e24

                  SHA512

                  23fc7f0bc19e88fc7acf3932c8319390804e5fb54db5a44af457ea5387b0b82ec1a3011dd648c6c912bff9fccf66705518c9f5ac4934abc299434ac38d103ff4

                • C:\Users\Admin\AppData\Roaming\1000004000\P6aAurfUFmnG.exe

                  Filesize

                  237KB

                  MD5

                  2272d1fd724998ca2962707b07db30af

                  SHA1

                  06e34f84cc20f9c0a62e168e0abdac9e8d2b8873

                  SHA256

                  fad272c7c89b882083723b28fe821e59e089863d5b2b1f23a1a531cca59c4e24

                  SHA512

                  23fc7f0bc19e88fc7acf3932c8319390804e5fb54db5a44af457ea5387b0b82ec1a3011dd648c6c912bff9fccf66705518c9f5ac4934abc299434ac38d103ff4

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\clip64.dll

                  Filesize

                  102KB

                  MD5

                  ed15379ed0c9f2e2cc0c105fc8f08896

                  SHA1

                  eb19214f7242ffa308fb1366f619a6293ab5c2e9

                  SHA256

                  1ab121c22361884aa13cc654a4e79a6e70240d3ef60bc1e660aeef7bde168aa3

                  SHA512

                  9c3563fc4f16b124053d21937aabb0be32deda3c673ea04505df662d972352b62ea7488f3d0177d8cc868e9cdda49b298db6ac589a71799025f8bcedd5e70fcd

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\clip64.dll

                  Filesize

                  102KB

                  MD5

                  ed15379ed0c9f2e2cc0c105fc8f08896

                  SHA1

                  eb19214f7242ffa308fb1366f619a6293ab5c2e9

                  SHA256

                  1ab121c22361884aa13cc654a4e79a6e70240d3ef60bc1e660aeef7bde168aa3

                  SHA512

                  9c3563fc4f16b124053d21937aabb0be32deda3c673ea04505df662d972352b62ea7488f3d0177d8cc868e9cdda49b298db6ac589a71799025f8bcedd5e70fcd

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\clip64.dll

                  Filesize

                  102KB

                  MD5

                  ed15379ed0c9f2e2cc0c105fc8f08896

                  SHA1

                  eb19214f7242ffa308fb1366f619a6293ab5c2e9

                  SHA256

                  1ab121c22361884aa13cc654a4e79a6e70240d3ef60bc1e660aeef7bde168aa3

                  SHA512

                  9c3563fc4f16b124053d21937aabb0be32deda3c673ea04505df662d972352b62ea7488f3d0177d8cc868e9cdda49b298db6ac589a71799025f8bcedd5e70fcd

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\cred64.dll

                  Filesize

                  1.1MB

                  MD5

                  7d6c819c7accbd9abe8f6c4eb087eea2

                  SHA1

                  6b6b4bc3c0bc152cbea590c83dd55b2101abb130

                  SHA256

                  2d93ffc4f232bcc5f7c2a19d8fcbaa50884e60a027804fcecc3c40d120eedc8c

                  SHA512

                  cfbc2bf4d5417d066ba8c845c8117306650347648c13fac51d65f6610493b81af8317051268c8152b2c6011cf4baeffcd2bc928c5334842b6147d70173ac8e8a

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\cred64.dll

                  Filesize

                  1.1MB

                  MD5

                  7d6c819c7accbd9abe8f6c4eb087eea2

                  SHA1

                  6b6b4bc3c0bc152cbea590c83dd55b2101abb130

                  SHA256

                  2d93ffc4f232bcc5f7c2a19d8fcbaa50884e60a027804fcecc3c40d120eedc8c

                  SHA512

                  cfbc2bf4d5417d066ba8c845c8117306650347648c13fac51d65f6610493b81af8317051268c8152b2c6011cf4baeffcd2bc928c5334842b6147d70173ac8e8a

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\cred64.dll

                  Filesize

                  1.1MB

                  MD5

                  7d6c819c7accbd9abe8f6c4eb087eea2

                  SHA1

                  6b6b4bc3c0bc152cbea590c83dd55b2101abb130

                  SHA256

                  2d93ffc4f232bcc5f7c2a19d8fcbaa50884e60a027804fcecc3c40d120eedc8c

                  SHA512

                  cfbc2bf4d5417d066ba8c845c8117306650347648c13fac51d65f6610493b81af8317051268c8152b2c6011cf4baeffcd2bc928c5334842b6147d70173ac8e8a

                • C:\Users\Admin\AppData\Roaming\491b681d623b85\cred64.dll

                  Filesize

                  1.1MB

                  MD5

                  7d6c819c7accbd9abe8f6c4eb087eea2

                  SHA1

                  6b6b4bc3c0bc152cbea590c83dd55b2101abb130

                  SHA256

                  2d93ffc4f232bcc5f7c2a19d8fcbaa50884e60a027804fcecc3c40d120eedc8c

                  SHA512

                  cfbc2bf4d5417d066ba8c845c8117306650347648c13fac51d65f6610493b81af8317051268c8152b2c6011cf4baeffcd2bc928c5334842b6147d70173ac8e8a

                • memory/560-32-0x00000000009A0000-0x0000000000AA0000-memory.dmp

                  Filesize

                  1024KB

                • memory/560-98-0x0000000000400000-0x000000000062D000-memory.dmp

                  Filesize

                  2.2MB

                • memory/560-105-0x0000000000400000-0x000000000062D000-memory.dmp

                  Filesize

                  2.2MB

                • memory/560-97-0x0000000000780000-0x000000000079B000-memory.dmp

                  Filesize

                  108KB

                • memory/560-110-0x0000000000400000-0x000000000062D000-memory.dmp

                  Filesize

                  2.2MB

                • memory/560-96-0x00000000009A0000-0x0000000000AA0000-memory.dmp

                  Filesize

                  1024KB

                • memory/560-58-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                  Filesize

                  972KB

                • memory/560-34-0x0000000000400000-0x000000000062D000-memory.dmp

                  Filesize

                  2.2MB

                • memory/560-131-0x0000000000400000-0x000000000062D000-memory.dmp

                  Filesize

                  2.2MB

                • memory/560-33-0x0000000000780000-0x000000000079B000-memory.dmp

                  Filesize

                  108KB