Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/07/2024, 15:44

General

  • Target
    file.exe
  • Size 1.1MB
  • Sample240716-s6gckssdpf
  • SHA256 a84519749f8ad340ae767ffce46acc77280b130fcf079a0a089a18f1428dc747
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • funny

C2
  • http://85.28.47.30

Attributes
  • url_path

    /920475a59bac849d.php

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

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.

  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Executes dropped EXE 6 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.

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKKJKFBKKE.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Users\Admin\AppData\Local\Temp\BKKJKFBKKE.exe
        "C:\Users\Admin\AppData\Local\Temp\BKKJKFBKKE.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Checks computer location settings
        • Executes dropped EXE
        • 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:980
        • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
          "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Checks computer location settings
          • Executes dropped EXE
          • Identifies Wine through registry keys
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:456
          • C:\Users\Admin\AppData\Local\Temp\1000006001\4a27896fe4.exe
            "C:\Users\Admin\AppData\Local\Temp\1000006001\4a27896fe4.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:3692
          • C:\Users\Admin\AppData\Local\Temp\1000011001\da8557d4cc.exe
            "C:\Users\Admin\AppData\Local\Temp\1000011001\da8557d4cc.exe"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of WriteProcessMemory
            PID:2784
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" https://www.youtube.com/account
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:4712
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" https://www.youtube.com/account
                7⤵
                • Checks processor information in registry
                • Modifies registry class
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:5000
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.0.1419433025\428905032" -parentBuildID 20230214051806 -prefsHandle 1756 -prefMapHandle 1748 -prefsLen 22076 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {fd66f43f-f811-407b-bca4-7e0c49191d80} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 1836 1e288220a58 gpu
                  8⤵
                    PID:860
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.1.394626659\74917611" -parentBuildID 20230214051806 -prefsHandle 2400 -prefMapHandle 2396 -prefsLen 22927 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {59dab083-9cfc-44f8-9498-8b562915b61c} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 2428 1e2888ac858 socket
                    8⤵
                      PID:4628
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.2.1394501443\2131654673" -childID 1 -isForBrowser -prefsHandle 2648 -prefMapHandle 2812 -prefsLen 22965 -prefMapSize 235121 -jsInitHandle 1292 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ae619943-d6b6-4d53-bde2-1e14ad3eba30} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 2808 1e28b352258 tab
                      8⤵
                        PID:3532
                      • C:\Program Files\Mozilla Firefox\firefox.exe
                        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.3.1500330283\431536645" -childID 2 -isForBrowser -prefsHandle 3392 -prefMapHandle 3644 -prefsLen 27616 -prefMapSize 235121 -jsInitHandle 1292 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2b585351-e997-41f6-9e1d-f747a1b6af97} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 3568 1e28d11df58 tab
                        8⤵
                          PID:636
                        • C:\Program Files\Mozilla Firefox\firefox.exe
                          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.4.1036696745\1236909605" -childID 3 -isForBrowser -prefsHandle 5408 -prefMapHandle 5308 -prefsLen 27697 -prefMapSize 235121 -jsInitHandle 1292 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {9586a1ed-362a-45ba-98b3-871e9c537025} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 5300 1e28b355258 tab
                          8⤵
                            PID:1020
                          • C:\Program Files\Mozilla Firefox\firefox.exe
                            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.5.1315393633\168473035" -childID 4 -isForBrowser -prefsHandle 5552 -prefMapHandle 5556 -prefsLen 27697 -prefMapSize 235121 -jsInitHandle 1292 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {451ad47b-458a-4a79-95d8-03f0f6b4ccb1} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 5544 1e28f169558 tab
                            8⤵
                              PID:2856
                            • C:\Program Files\Mozilla Firefox\firefox.exe
                              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="5000.6.221237011\519640032" -childID 5 -isForBrowser -prefsHandle 5744 -prefMapHandle 5748 -prefsLen 27697 -prefMapSize 235121 -jsInitHandle 1292 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {c890696a-c3c1-4354-b4c9-4615e764ac59} 5000 "\\.\pipe\gecko-crash-server-pipe.5000" 5828 1e28f17ec58 tab
                              8⤵
                                PID:4212
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KJDGDBFBGI.exe"
                    2⤵
                    • Checks computer location settings
                    • Suspicious use of SetWindowsHookEx
                    PID:4084
                • 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:5936
                • 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:812

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      mozglue.dll

                      • Path C:\ProgramData\mozglue.dll
                      • Size 593KB
                      • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
                      • MD5 SHA1 SHA512 SSDEEP

                      nss3.dll

                      • Path C:\ProgramData\nss3.dll
                      • Size 2.0MB
                      • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
                      • MD5 SHA1 SHA512 SSDEEP

                      activity-stream.discovery_stream.json.tmp

                      • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\q38sqp1f.default-release\activity-stream.discovery_stream.json.tmp
                      • Size 23KB
                      • SHA256 cb3d06d926c75316634895ee403524828d6a1449d696863d7c8e86116809f6e2
                      • MD5 SHA1 SHA512 SSDEEP

                      8A2034D325DC0B5C9E11EDDA3FC70A54C8DC1C0D

                      • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\q38sqp1f.default-release\cache2\entries\8A2034D325DC0B5C9E11EDDA3FC70A54C8DC1C0D
                      • Size 13KB
                      • SHA256 2e731d9364c674699a2e1de8ade02ceeb452f9a2e1cb5b04ed6c3a2d7440345d
                      • MD5 SHA1 SHA512 SSDEEP

                      4a27896fe4.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000006001\4a27896fe4.exe
                      • Size 1.1MB
                      • SHA256 a84519749f8ad340ae767ffce46acc77280b130fcf079a0a089a18f1428dc747
                      • MD5 SHA1 SHA512 SSDEEP

                      da8557d4cc.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\1000011001\da8557d4cc.exe
                      • Size 1.2MB
                      • SHA256 1ba88764eab20691524d8ed9cea61601b53d762eb94c4a78cf72071dc17627d8
                      • MD5 SHA1 SHA512 SSDEEP

                      BKKJKFBKKE.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\BKKJKFBKKE.exe
                      • Size 1.8MB
                      • SHA256 b7d6f48f1394d606af1d8afebec9d8510873672ab453fb787cff3a7faf65a6b2
                      • MD5 SHA1 SHA512 SSDEEP

                      tmpaddon

                      • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                      • Size 442KB
                      • SHA256 a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e
                      • MD5 SHA1 SHA512 SSDEEP

                      tmpaddon-1

                      • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon-1
                      • Size 8.0MB
                      • SHA256 345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42
                      • MD5 SHA1 SHA512 SSDEEP

                      gmpopenh264.dll

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll
                      • Size 997KB
                      • SHA256 1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e
                      • MD5 SHA1 SHA512 SSDEEP

                      gmpopenh264.info

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info
                      • Size 116B
                      • SHA256 f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b
                      • MD5 SHA1 SHA512

                      LICENSE.txt

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt
                      • Size 479B
                      • SHA256 2af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539
                      • MD5 SHA1 SHA512

                      manifest.json

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json
                      • Size 372B
                      • SHA256 e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd
                      • MD5 SHA1 SHA512

                      widevinecdm.dll

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll
                      • Size 11.8MB
                      • SHA256 8ee42d9258e20bbc5bfdfae61605429beb5421ffeaaa0d02b86d4978f4b4ac4e
                      • MD5 SHA1 SHA512 SSDEEP

                      widevinecdm.dll.lib

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib
                      • Size 1KB
                      • SHA256 33899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237
                      • MD5 SHA1 SHA512

                      widevinecdm.dll.sig

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig
                      • Size 1KB
                      • SHA256 68a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81
                      • MD5 SHA1 SHA512

                      prefs-1.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\prefs-1.js
                      • Size 8KB
                      • SHA256 2737f9fff23caf399dce3d78ae677368259cd4505cad2f3320573c77ca20b81c
                      • MD5 SHA1 SHA512 SSDEEP

                      prefs-1.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\prefs-1.js
                      • Size 10KB
                      • SHA256 791325ef07cee8e7e919347611f1e78a8b07726f07647a07945eca2c6bf49537
                      • MD5 SHA1 SHA512 SSDEEP

                      prefs.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\prefs.js
                      • Size 6KB
                      • SHA256 a0c433d0996db6e49a6a97c38a5062da60c13f84ac81916a7fb88aa8affeeef3
                      • MD5 SHA1 SHA512 SSDEEP

                      recovery.jsonlz4

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\q38sqp1f.default-release\sessionstore-backups\recovery.jsonlz4
                      • Size 4KB
                      • SHA256 5b031d6650c9349c633f9464d62f6dfa394b422a9aac3245928508d53e07216e
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/456-215-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2224-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2220-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2231-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2230-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2229-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2204-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-95-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-1552-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-477-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-234-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-225-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/456-2225-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/812-2227-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/812-2228-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/980-81-0x0000000000930000-0x0000000000DFA000-memory.dmp

                      memory/980-94-0x0000000000930000-0x0000000000DFA000-memory.dmp

                      memory/1984-77-0x0000000000C80000-0x0000000001211000-memory.dmp

                      memory/1984-0-0x0000000000C80000-0x0000000001211000-memory.dmp

                      memory/1984-1-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                      memory/1984-52-0x0000000000C80000-0x0000000001211000-memory.dmp

                      memory/3692-111-0x0000000000270000-0x0000000000801000-memory.dmp

                      memory/3692-112-0x0000000000270000-0x0000000000801000-memory.dmp

                      memory/5936-286-0x0000000000740000-0x0000000000C0A000-memory.dmp

                      memory/5936-236-0x0000000000740000-0x0000000000C0A000-memory.dmp