Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/07/2024, 02:05

General

  • Target
    067ff229884c58ebf87d7519a5cc37ba5d23a14ac02edd77465399f3b98a39e2.exe
  • Size 1.8MB
  • Sample240723-cjanhs1fpf
  • SHA256 067ff229884c58ebf87d7519a5cc37ba5d23a14ac02edd77465399f3b98a39e2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.30

Botnet
  • 4dd39d

C2
  • http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Extracted

Family
  • stealc

Botnet
  • sila

C2
  • http://85.28.47.31

Attributes
  • url_path

    /5499d72b3a3e55be.php

Signatures

  • Amadey

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

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 8 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Identifies Wine through registry keys 2 TTPs 4 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • 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 8 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\067ff229884c58ebf87d7519a5cc37ba5d23a14ac02edd77465399f3b98a39e2.exe
    "C:\Users\Admin\AppData\Local\Temp\067ff229884c58ebf87d7519a5cc37ba5d23a14ac02edd77465399f3b98a39e2.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
        3⤵
          PID:2420
        • C:\Users\Admin\AppData\Local\Temp\1000021001\d08aa17e0b.exe
          "C:\Users\Admin\AppData\Local\Temp\1000021001\d08aa17e0b.exe"
          3⤵
          • Executes dropped EXE
          PID:1572
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1572 -s 1324
            4⤵
            • Program crash
            PID:2532
        • C:\Users\Admin\AppData\Local\Temp\1000022001\6ad5c5f34b.exe
          "C:\Users\Admin\AppData\Local\Temp\1000022001\6ad5c5f34b.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:3032
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" https://www.youtube.com/account
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3248
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" https://www.youtube.com/account
              5⤵
              • Checks processor information in registry
              • Modifies registry class
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1456
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=1996 -parentBuildID 20240401114208 -prefsHandle 1912 -prefMapHandle 1904 -prefsLen 25751 -prefMapSize 244658 -appDir "C:\Program Files\Mozilla Firefox\browser" - {a70c2679-bf06-4bb8-9fc9-22bdc872fa4f} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" gpu
                6⤵
                  PID:3212
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2416 -parentBuildID 20240401114208 -prefsHandle 2408 -prefMapHandle 2404 -prefsLen 26671 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {1a430295-4195-4744-bbb9-a6def26461f4} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" socket
                  6⤵
                    PID:2144
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2988 -childID 1 -isForBrowser -prefsHandle 3016 -prefMapHandle 2984 -prefsLen 22698 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2d1ed5af-6b4b-44d0-93e0-0e4646adb3c6} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" tab
                    6⤵
                      PID:4988
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4012 -childID 2 -isForBrowser -prefsHandle 4036 -prefMapHandle 4032 -prefsLen 31161 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {aa574f02-ded8-4ae6-98bf-18c586abb713} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" tab
                      6⤵
                        PID:4292
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4840 -parentBuildID 20240401114208 -sandboxingKind 0 -prefsHandle 4900 -prefMapHandle 4896 -prefsLen 31161 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {75d6af0b-792d-4d81-8f8b-4a2bbdc4c4f6} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" utility
                        6⤵
                        • Checks processor information in registry
                        PID:32
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5652 -childID 3 -isForBrowser -prefsHandle 5644 -prefMapHandle 5648 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2392003d-4ea3-42d0-a70b-cc498ce9991f} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" tab
                        6⤵
                          PID:3748
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5596 -childID 4 -isForBrowser -prefsHandle 5772 -prefMapHandle 5776 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ec4354f3-f096-4f1c-8328-6aa3420f0ffe} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" tab
                          6⤵
                            PID:3344
                          • C:\Program Files\Mozilla Firefox\firefox.exe
                            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5932 -childID 5 -isForBrowser -prefsHandle 6032 -prefMapHandle 5940 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {8fcf8773-e805-44af-8a78-ecb8ba175ea7} 1456 "\\.\pipe\gecko-crash-server-pipe.1456" tab
                            6⤵
                              PID:1160
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1572 -ip 1572
                    1⤵
                      PID:4540
                    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
                      C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
                      1⤵
                      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                      • Checks BIOS information in registry
                      • Executes dropped EXE
                      • Identifies Wine through registry keys
                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                      • Suspicious behavior: EnumeratesProcesses
                      PID:3008
                    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
                      C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
                      1⤵
                      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                      • Checks BIOS information in registry
                      • Executes dropped EXE
                      • Identifies Wine through registry keys
                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                      • Suspicious behavior: EnumeratesProcesses
                      PID:4356

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          8A2034D325DC0B5C9E11EDDA3FC70A54C8DC1C0D

                          • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\yz8w575m.default-release\cache2\entries\8A2034D325DC0B5C9E11EDDA3FC70A54C8DC1C0D
                          • Size 13KB
                          • SHA256 4ea8fdb0b3ab83c24b77a4275199a9c39a93aba03e70d0db4939d1b2c65c0e4a
                          • MD5 SHA1 SHA512 SSDEEP

                          d08aa17e0b.exe

                          • Path C:\Users\Admin\AppData\Local\Temp\1000021001\d08aa17e0b.exe
                          • Size 199KB
                          • SHA256 18b8662e5d0b1f00302bbe26ddb5fa099da34a0d3255180d2358d6066bb42348
                          • MD5 SHA1 SHA512 SSDEEP

                          6ad5c5f34b.exe

                          • Path C:\Users\Admin\AppData\Local\Temp\1000022001\6ad5c5f34b.exe
                          • Size 1.2MB
                          • SHA256 fb88e056a84aca29dd61784fa3d87525528b642a52115df448b3cc71cef61f6c
                          • MD5 SHA1 SHA512 SSDEEP

                          explorti.exe

                          • Path C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
                          • Size 1.8MB
                          • SHA256 067ff229884c58ebf87d7519a5cc37ba5d23a14ac02edd77465399f3b98a39e2
                          • MD5 SHA1 SHA512 SSDEEP

                          tmpaddon

                          • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                          • Size 479KB
                          • SHA256 c32efac42faf4b9878fb8917c5e71d89ff40de580c4f52f62e11c6cfab55167f
                          • MD5 SHA1 SHA512 SSDEEP

                          tmpaddon-1

                          • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon-1
                          • Size 13.8MB
                          • SHA256 32d544baf2facc893057a1d97db33207e642f0dacf235d8500a0b5eff934ce03
                          • MD5 SHA1 SHA512 SSDEEP

                          AlternateServices.bin

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\AlternateServices.bin
                          • Size 8KB
                          • SHA256 28dd01a2b32c0f73858f473978839e02a77a9978a490d9724b284e65549d1263
                          • MD5 SHA1 SHA512 SSDEEP

                          AlternateServices.bin

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\AlternateServices.bin
                          • Size 11KB
                          • SHA256 a375b1232130193719d4c1ce10befebee18c9e7085150d0b38ee9a88bd8e1791
                          • MD5 SHA1 SHA512 SSDEEP

                          AlternateServices.bin

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\AlternateServices.bin
                          • Size 13KB
                          • SHA256 8e5aef0e5d39179d8a40e54770278f137219d8635fcbae7c715d5034d694474d
                          • MD5 SHA1 SHA512 SSDEEP

                          data.safe.tmp

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\datareporting\glean\db\data.safe.tmp
                          • Size 22KB
                          • SHA256 48c9924ef2cc16be51593a2aaa59fd8b0cd848f1da5d14bbae1840c90dbb5392
                          • MD5 SHA1 SHA512 SSDEEP

                          data.safe.tmp

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\datareporting\glean\db\data.safe.tmp
                          • Size 25KB
                          • SHA256 10b1877b3fe3c8c4ed3605c1b7ded81ee6db924b2458ca5788a497c570d9153e
                          • MD5 SHA1 SHA512 SSDEEP

                          data.safe.tmp

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\datareporting\glean\db\data.safe.tmp
                          • Size 25KB
                          • SHA256 4cf703f5cdb73aaa64916178093c1dbb86d65d255002ca0de322e11fa7539e08
                          • MD5 SHA1 SHA512 SSDEEP

                          data.safe.tmp

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\datareporting\glean\db\data.safe.tmp
                          • Size 23KB
                          • SHA256 5af1501aac607e5bc296548a6e59e1fa3da34e63b421fb51cd402c51a6cd4de6
                          • MD5 SHA1 SHA512 SSDEEP

                          94daeae5-8cb3-41cf-8d37-a00b4140f698

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\datareporting\glean\pending_pings\94daeae5-8cb3-41cf-8d37-a00b4140f698
                          • Size 659B
                          • SHA256 568a7c0529e7bf6b62f3c727b402f06d4d435da372871e4cd89c08507e4f848e
                          • MD5 SHA1 SHA512

                          9865fea7-346d-4ac9-917c-7d0b65375745

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\datareporting\glean\pending_pings\9865fea7-346d-4ac9-917c-7d0b65375745
                          • Size 982B
                          • SHA256 a4d49afd12644987e97b81cd3cf84ba5b72603d4d3f5fc36fe896026d7fdf5f9
                          • MD5 SHA1 SHA512

                          gmpopenh264.dll

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\gmp-gmpopenh264\2.3.2\gmpopenh264.dll
                          • Size 1.1MB
                          • SHA256 d88dd3bfc4a558bb943f3caa2e376da3942e48a7948763bf9a38f707c2cd0c1c
                          • MD5 SHA1 SHA512 SSDEEP

                          gmpopenh264.info

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\gmp-gmpopenh264\2.3.2\gmpopenh264.info
                          • Size 116B
                          • SHA256 4107f76ba1d9424555f4e8ea0acef69357dfff89dfa5f0ec72aa4f2d489b17bc
                          • MD5 SHA1 SHA512

                          manifest.json

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\gmp-widevinecdm\4.10.2710.0\manifest.json
                          • Size 372B
                          • SHA256 bbab6ca07edbed72a966835c7907b3e60c7aa3d48ddea847e5076bd05f4b1eda
                          • MD5 SHA1 SHA512

                          widevinecdm.dll

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\gmp-widevinecdm\4.10.2710.0\widevinecdm.dll
                          • Size 17.8MB
                          • SHA256 bc40c7821dcd3fea9923c6912ab1183a942c11b7690cfd79ed148ded0228777e
                          • MD5 SHA1 SHA512 SSDEEP

                          prefs-1.js

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\prefs-1.js
                          • Size 13KB
                          • SHA256 64a3a95dcd9035f12e83315d651de738639cb82a03bf88c15e750e872f77798b
                          • MD5 SHA1 SHA512 SSDEEP

                          prefs-1.js

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\prefs-1.js
                          • Size 16KB
                          • SHA256 f09a8e795107985fbcf6fdd3c43e6f06ef8cc5f5d659b262a5f2e6d985e75c94
                          • MD5 SHA1 SHA512 SSDEEP

                          prefs.js

                          • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\yz8w575m.default-release\prefs.js
                          • Size 8KB
                          • SHA256 1dcf1a3b2b38464b40694abcfa6f35ed46c3a6601454f1232ef64f355644878b
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/1572-40-0x0000000000790000-0x0000000000890000-memory.dmp

                          memory/1572-61-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/1572-41-0x0000000000AB0000-0x0000000000AE0000-memory.dmp

                          memory/1572-42-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/1872-18-0x0000000000060000-0x0000000000513000-memory.dmp

                          memory/1872-5-0x0000000000060000-0x0000000000513000-memory.dmp

                          memory/1872-0-0x0000000000060000-0x0000000000513000-memory.dmp

                          memory/1872-3-0x0000000000060000-0x0000000000513000-memory.dmp

                          memory/1872-2-0x0000000000061000-0x000000000008F000-memory.dmp

                          memory/1872-1-0x0000000076F66000-0x0000000076F68000-memory.dmp

                          memory/2788-395-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2584-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-394-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-385-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-376-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-21-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-19-0x0000000000B71000-0x0000000000B9F000-memory.dmp

                          memory/2788-20-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-16-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-1223-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2571-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2598-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2597-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2575-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2581-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2583-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-400-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2585-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2586-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/2788-2588-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/3008-2574-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/3008-2573-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/4356-2589-0x0000000000B70000-0x0000000001023000-memory.dmp

                          memory/4356-2591-0x0000000000B70000-0x0000000001023000-memory.dmp