Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    20/07/2024, 02:38

General

  • Target
    de2f3b21830228e66a0d8f3d345985bcb3282255c221cf7a47cafb7ff5b9472e.exe
  • Size 1.8MB
  • Sample240720-c443vswdrc
  • SHA256 de2f3b21830228e66a0d8f3d345985bcb3282255c221cf7a47cafb7ff5b9472e
  • 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
  • default

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 5 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 10 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Identifies Wine through registry keys 2 TTPs 5 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 2 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 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\de2f3b21830228e66a0d8f3d345985bcb3282255c221cf7a47cafb7ff5b9472e.exe
    "C:\Users\Admin\AppData\Local\Temp\de2f3b21830228e66a0d8f3d345985bcb3282255c221cf7a47cafb7ff5b9472e.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:4048
    • 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:2772
      • C:\Users\Admin\AppData\Local\Temp\1000015001\cdb6d60c20.exe
        "C:\Users\Admin\AppData\Local\Temp\1000015001\cdb6d60c20.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3420
      • C:\Users\Admin\AppData\Local\Temp\1000016001\808b66f68e.exe
        "C:\Users\Admin\AppData\Local\Temp\1000016001\808b66f68e.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:1432
        • 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:1924
          • 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:3224
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2004 -parentBuildID 20240401114208 -prefsHandle 1920 -prefMapHandle 1912 -prefsLen 25751 -prefMapSize 244658 -appDir "C:\Program Files\Mozilla Firefox\browser" - {0dc4df72-36b9-4676-85a4-951fd2d50327} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" gpu
              6⤵
                PID:2952
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2412 -parentBuildID 20240401114208 -prefsHandle 2404 -prefMapHandle 2400 -prefsLen 26671 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {fc7dc23d-fc03-4309-98d0-873f10a0186f} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" socket
                6⤵
                  PID:4456
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=1704 -childID 1 -isForBrowser -prefsHandle 1524 -prefMapHandle 2928 -prefsLen 22698 -prefMapSize 244658 -jsInitHandle 1316 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {99000720-f317-41a7-8bcd-4aac39cd9dee} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" tab
                  6⤵
                    PID:1088
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3544 -childID 2 -isForBrowser -prefsHandle 3536 -prefMapHandle 3532 -prefsLen 31161 -prefMapSize 244658 -jsInitHandle 1316 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {83ef58e0-864e-4328-a63d-2ed90136b825} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" tab
                    6⤵
                      PID:1404
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4804 -parentBuildID 20240401114208 -sandboxingKind 0 -prefsHandle 4828 -prefMapHandle 4824 -prefsLen 31161 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b0b15de3-e52d-4184-a396-6f3c264306eb} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" utility
                      6⤵
                      • Checks processor information in registry
                      PID:1052
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3352 -childID 3 -isForBrowser -prefsHandle 5596 -prefMapHandle 5592 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 1316 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7d00440a-89e9-4704-a62a-6b9c099ac2f2} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" tab
                      6⤵
                        PID:3084
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5788 -childID 4 -isForBrowser -prefsHandle 5708 -prefMapHandle 5712 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 1316 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {510ae66b-5dab-4f63-97f5-d082d859a18d} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" tab
                        6⤵
                          PID:1224
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5988 -childID 5 -isForBrowser -prefsHandle 5908 -prefMapHandle 5916 -prefsLen 27132 -prefMapSize 244658 -jsInitHandle 1316 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {e357ccc0-4266-4fe3-8a2b-0d9154aa7474} 3224 "\\.\pipe\gecko-crash-server-pipe.3224" tab
                          6⤵
                            PID:4492
                • 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:2996
                • 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:3204
                • 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:4028

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      activity-stream.discovery_stream.json

                      • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\activity-stream.discovery_stream.json
                      • Size 18KB
                      • SHA256 72e2aa02a3f7ded0dc9414f25efabdcae0ab09f5052f623cd76424dec236f3f0
                      • MD5 SHA1 SHA512 SSDEEP

                      8A2034D325DC0B5C9E11EDDA3FC70A54C8DC1C0D

                      • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\cache2\entries\8A2034D325DC0B5C9E11EDDA3FC70A54C8DC1C0D
                      • Size 13KB
                      • SHA256 106384c65b08e5a8db9ed9d32329fa08368f62cc3521472ca89bc8d9a520f754
                      • MD5 SHA1 SHA512 SSDEEP

                      cdb6d60c20.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000015001\cdb6d60c20.exe
                      • Size 679KB
                      • SHA256 a04eed72375bdd8a6ce118e30e79cf6dc4618e4c748873c0da29cf0e9f9f031c
                      • MD5 SHA1 SHA512 SSDEEP

                      808b66f68e.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000016001\808b66f68e.exe
                      • Size 1.2MB
                      • SHA256 9d3f70e99c2b3ac6ab8600c6abf759403beb272815e60a08967f122b350184b5
                      • MD5 SHA1 SHA512 SSDEEP

                      explorti.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
                      • Size 1.8MB
                      • SHA256 de2f3b21830228e66a0d8f3d345985bcb3282255c221cf7a47cafb7ff5b9472e
                      • 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\tu0k8f5w.default-release\AlternateServices.bin
                      • Size 12KB
                      • SHA256 3a7369ba01bb685f6193f33b40b7c025efecd6244b362b44a010d2f21a7ec80a
                      • MD5 SHA1 SHA512 SSDEEP

                      data.safe.tmp

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\datareporting\glean\db\data.safe.tmp
                      • Size 22KB
                      • SHA256 148444cbce078f368d3210e6ff945d96fac4489e3009cd641ce8e717088e165e
                      • MD5 SHA1 SHA512 SSDEEP

                      data.safe.tmp

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\datareporting\glean\db\data.safe.tmp
                      • Size 23KB
                      • SHA256 d6136d170e05a0300ee7d2e1565ac78e93863c3a382d003e10a15ca81c3d2ea7
                      • MD5 SHA1 SHA512 SSDEEP

                      data.safe.tmp

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\datareporting\glean\db\data.safe.tmp
                      • Size 25KB
                      • SHA256 cf91f5f5724d31baeb212b85b7cf9862479e47bddefcb6d2d93783762f18cfa9
                      • MD5 SHA1 SHA512 SSDEEP

                      123e60be-83e1-41dd-907a-e5bd9e031a40

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\datareporting\glean\pending_pings\123e60be-83e1-41dd-907a-e5bd9e031a40
                      • Size 659B
                      • SHA256 30aafb3f83ce79398f76dc00bdf4cb3e207d3123eba98ba9d55e635dd97cfa10
                      • MD5 SHA1 SHA512

                      6f2ab6fa-6d01-4f83-8afc-ee0114820648

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\datareporting\glean\pending_pings\6f2ab6fa-6d01-4f83-8afc-ee0114820648
                      • Size 982B
                      • SHA256 e5b3e8746696eb3d7c9166a8a85363d20c699c2756841cb07fcdbcbea1f8e824
                      • MD5 SHA1 SHA512

                      gmpopenh264.dll

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.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\tu0k8f5w.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\tu0k8f5w.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\tu0k8f5w.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\tu0k8f5w.default-release\prefs-1.js
                      • Size 12KB
                      • SHA256 1990287841b42387acba9a55e98f49b5752df926f45e34c4471ecaa589fc72ac
                      • MD5 SHA1 SHA512 SSDEEP

                      prefs-1.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\tu0k8f5w.default-release\prefs-1.js
                      • Size 16KB
                      • SHA256 f33db3f04f356a53a2da68d10ee420a9467bcac7f863a7f065788410ec79a84e
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/2772-2583-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-20-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2586-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2611-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-358-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-385-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-394-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-395-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-400-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2597-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-21-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2595-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-19-0x00000000007A1000-0x00000000007CF000-memory.dmp

                      memory/2772-2605-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-17-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2601-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2600-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2599-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-2598-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2772-1335-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2996-60-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/2996-59-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/3204-2590-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/3204-2591-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/3420-37-0x00000000009F0000-0x0000000000FC8000-memory.dmp

                      memory/3420-39-0x00000000009F0000-0x0000000000FC8000-memory.dmp

                      memory/4028-2603-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/4028-2604-0x00000000007A0000-0x0000000000C65000-memory.dmp

                      memory/4048-0-0x0000000000530000-0x00000000009F5000-memory.dmp

                      memory/4048-1-0x0000000077056000-0x0000000077058000-memory.dmp

                      memory/4048-2-0x0000000000531000-0x000000000055F000-memory.dmp

                      memory/4048-3-0x0000000000530000-0x00000000009F5000-memory.dmp

                      memory/4048-4-0x0000000000530000-0x00000000009F5000-memory.dmp

                      memory/4048-18-0x0000000000530000-0x00000000009F5000-memory.dmp