Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    31-03-2024 05:50

General

  • Target

    a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b.exe

  • Size

    1.8MB

  • MD5

    84fb0656d2462e97ad88d17212bdf2bc

  • SHA1

    3f7caf3955ff8ebe0fe6c361a61b19971c693fd2

  • SHA256

    a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b

  • SHA512

    3f798c2155a36a84fbb24331704947eec5f7c87e5a52967ef6462486aa41caab24c88889f62e1cdec2ed798c79936593ae7a92c14dce41d03582c885393296ff

  • SSDEEP

    49152:TCN2iuu1xZLOUvScMpOFApbD4cpr6C5wueUiGl:vSc3sqp9GuLPl

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Signatures

  • Amadey

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

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

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

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

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

  • Loads dropped DLL 3 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 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
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b.exe
    "C:\Users\Admin\AppData\Local\Temp\a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b.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
    PID:2520
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.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
    • Suspicious use of WriteProcessMemory
    PID:488
    • C:\Users\Admin\AppData\Local\Temp\1001073001\swiiiii.exe
      "C:\Users\Admin\AppData\Local\Temp\1001073001\swiiiii.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:892
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 880
        3⤵
        • Program crash
        PID:916
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:968
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:4140
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\280069375290_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4264
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:3900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2400 -ip 2400
      1⤵
        PID:1416

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe

        Filesize

        1.8MB

        MD5

        84fb0656d2462e97ad88d17212bdf2bc

        SHA1

        3f7caf3955ff8ebe0fe6c361a61b19971c693fd2

        SHA256

        a3170754eb777ef38d5dd3317ccd766ea1bca03a6e8d445ea26a75c5d68b747b

        SHA512

        3f798c2155a36a84fbb24331704947eec5f7c87e5a52967ef6462486aa41caab24c88889f62e1cdec2ed798c79936593ae7a92c14dce41d03582c885393296ff

      • C:\Users\Admin\AppData\Local\Temp\1001073001\swiiiii.exe

        Filesize

        321KB

        MD5

        1c7d0f34bb1d85b5d2c01367cc8f62ef

        SHA1

        33aedadb5361f1646cffd68791d72ba5f1424114

        SHA256

        e9e09c5e5d03d21fca820bd9b0a0ea7b86ab9e85cdc9996f8f1dc822b0cc801c

        SHA512

        53bf85d2b004f69bbbf7b6dc78e5f021aba71b6f814101c55d3bf76e6d058a973bc58270b6b621b2100c6e02d382f568d1e96024464e8ea81e6db8ccd948679d

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2xygmlvz.b4n.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll

        Filesize

        109KB

        MD5

        2afdbe3b99a4736083066a13e4b5d11a

        SHA1

        4d4856cf02b3123ac16e63d4a448cdbcb1633546

        SHA256

        8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee

        SHA512

        d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f

      • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll

        Filesize

        1.2MB

        MD5

        92fbdfccf6a63acef2743631d16652a7

        SHA1

        971968b1378dd89d59d7f84bf92f16fc68664506

        SHA256

        b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72

        SHA512

        b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117

      • memory/488-321-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-20-0x0000000005100000-0x0000000005101000-memory.dmp

        Filesize

        4KB

      • memory/488-320-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-319-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-318-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-317-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-316-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-22-0x00000000050F0000-0x00000000050F1000-memory.dmp

        Filesize

        4KB

      • memory/488-21-0x0000000005110000-0x0000000005111000-memory.dmp

        Filesize

        4KB

      • memory/488-322-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-19-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-27-0x0000000005140000-0x0000000005141000-memory.dmp

        Filesize

        4KB

      • memory/488-26-0x0000000005150000-0x0000000005151000-memory.dmp

        Filesize

        4KB

      • memory/488-23-0x0000000005130000-0x0000000005131000-memory.dmp

        Filesize

        4KB

      • memory/488-315-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-24-0x00000000050D0000-0x00000000050D1000-memory.dmp

        Filesize

        4KB

      • memory/488-303-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-25-0x00000000050E0000-0x00000000050E1000-memory.dmp

        Filesize

        4KB

      • memory/488-18-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/488-268-0x0000000000010000-0x00000000004D1000-memory.dmp

        Filesize

        4.8MB

      • memory/892-76-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-95-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-59-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-65-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-66-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-64-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-67-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-63-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-68-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-70-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-71-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-69-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-72-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-74-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-75-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-57-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/892-73-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-78-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-77-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-62-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-79-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-80-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-82-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-83-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-86-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-87-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-90-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-91-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-93-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-51-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/892-94-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-92-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-89-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-88-0x00000000038E0000-0x0000000003920000-memory.dmp

        Filesize

        256KB

      • memory/892-85-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-84-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-81-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-61-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-60-0x00000000037E0000-0x00000000038E0000-memory.dmp

        Filesize

        1024KB

      • memory/892-56-0x0000000001490000-0x0000000001491000-memory.dmp

        Filesize

        4KB

      • memory/892-54-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/2400-55-0x0000000003390000-0x0000000005390000-memory.dmp

        Filesize

        32.0MB

      • memory/2400-58-0x0000000072C60000-0x0000000073411000-memory.dmp

        Filesize

        7.7MB

      • memory/2400-48-0x0000000072C60000-0x0000000073411000-memory.dmp

        Filesize

        7.7MB

      • memory/2400-47-0x0000000000D40000-0x0000000000D92000-memory.dmp

        Filesize

        328KB

      • memory/2520-2-0x0000000000920000-0x0000000000DE1000-memory.dmp

        Filesize

        4.8MB

      • memory/2520-7-0x00000000054D0000-0x00000000054D1000-memory.dmp

        Filesize

        4KB

      • memory/2520-8-0x00000000054E0000-0x00000000054E1000-memory.dmp

        Filesize

        4KB

      • memory/2520-4-0x0000000005510000-0x0000000005511000-memory.dmp

        Filesize

        4KB

      • memory/2520-6-0x0000000005530000-0x0000000005531000-memory.dmp

        Filesize

        4KB

      • memory/2520-1-0x00000000772A6000-0x00000000772A8000-memory.dmp

        Filesize

        8KB

      • memory/2520-0-0x0000000000920000-0x0000000000DE1000-memory.dmp

        Filesize

        4.8MB

      • memory/2520-5-0x00000000054F0000-0x00000000054F1000-memory.dmp

        Filesize

        4KB

      • memory/2520-3-0x0000000005500000-0x0000000005501000-memory.dmp

        Filesize

        4KB

      • memory/2520-10-0x0000000005550000-0x0000000005551000-memory.dmp

        Filesize

        4KB

      • memory/2520-9-0x0000000005560000-0x0000000005561000-memory.dmp

        Filesize

        4KB

      • memory/2520-15-0x0000000000920000-0x0000000000DE1000-memory.dmp

        Filesize

        4.8MB