Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2024 05:50

General

  • Target

    0c8130f41b87e0f640f92b76710ec4de133464600b0ab8b52321f7b6966e2335.exe

  • Size

    1.8MB

  • MD5

    4e56fe213eaa056fce294ce958ce2bdd

  • SHA1

    348c8294235c4fdbdd3c59dceed394e7e65de3a2

  • SHA256

    0c8130f41b87e0f640f92b76710ec4de133464600b0ab8b52321f7b6966e2335

  • SHA512

    c444004cbc59f7cd15c47119479efe7ee7bc9570949a142fbf6e204cc954c1f2782d42e02df6ae4748bfa6149feae32e869ee5beac788e4c527dd1e51beb2fa7

  • SSDEEP

    49152:WAflcjuI6KoODIN1IBQ8nHlE/6h8I0NfbG:WAfm/DINq7HC/6+NfC

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 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 web browsers 2 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c8130f41b87e0f640f92b76710ec4de133464600b0ab8b52321f7b6966e2335.exe
    "C:\Users\Admin\AppData\Local\Temp\0c8130f41b87e0f640f92b76710ec4de133464600b0ab8b52321f7b6966e2335.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
    PID:404
  • 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
    • Checks computer location settings
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4920
    • 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:4376
      • 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:436
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:2220
          • 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\808065738166_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2116
      • 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:2104
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4240 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3944

      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

        4e56fe213eaa056fce294ce958ce2bdd

        SHA1

        348c8294235c4fdbdd3c59dceed394e7e65de3a2

        SHA256

        0c8130f41b87e0f640f92b76710ec4de133464600b0ab8b52321f7b6966e2335

        SHA512

        c444004cbc59f7cd15c47119479efe7ee7bc9570949a142fbf6e204cc954c1f2782d42e02df6ae4748bfa6149feae32e869ee5beac788e4c527dd1e51beb2fa7

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_31fxovxm.d0e.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/404-9-0x0000000004E10000-0x0000000004E11000-memory.dmp

        Filesize

        4KB

      • memory/404-11-0x0000000004E30000-0x0000000004E31000-memory.dmp

        Filesize

        4KB

      • memory/404-6-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

        Filesize

        4KB

      • memory/404-7-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

        Filesize

        4KB

      • memory/404-4-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

        Filesize

        4KB

      • memory/404-8-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

        Filesize

        4KB

      • memory/404-10-0x0000000004E40000-0x0000000004E41000-memory.dmp

        Filesize

        4KB

      • memory/404-5-0x0000000004E20000-0x0000000004E21000-memory.dmp

        Filesize

        4KB

      • memory/404-13-0x00000000004A0000-0x000000000095E000-memory.dmp

        Filesize

        4.7MB

      • memory/404-17-0x00000000004A0000-0x000000000095E000-memory.dmp

        Filesize

        4.7MB

      • memory/404-3-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

        Filesize

        4KB

      • memory/404-2-0x00000000004A0000-0x000000000095E000-memory.dmp

        Filesize

        4.7MB

      • memory/404-0-0x00000000004A0000-0x000000000095E000-memory.dmp

        Filesize

        4.7MB

      • memory/404-1-0x0000000077554000-0x0000000077556000-memory.dmp

        Filesize

        8KB

      • memory/2116-65-0x00007FFE5DCD0000-0x00007FFE5E791000-memory.dmp

        Filesize

        10.8MB

      • memory/2116-49-0x000001E9C6890000-0x000001E9C68B2000-memory.dmp

        Filesize

        136KB

      • memory/2116-59-0x000001E9AE320000-0x000001E9AE32A000-memory.dmp

        Filesize

        40KB

      • memory/2116-58-0x000001E9C6A40000-0x000001E9C6A52000-memory.dmp

        Filesize

        72KB

      • memory/2116-55-0x000001E9AE310000-0x000001E9AE320000-memory.dmp

        Filesize

        64KB

      • memory/2116-56-0x000001E9AE310000-0x000001E9AE320000-memory.dmp

        Filesize

        64KB

      • memory/2116-54-0x00007FFE5DCD0000-0x00007FFE5E791000-memory.dmp

        Filesize

        10.8MB

      • memory/4920-57-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-21-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-22-0x00000000050F0000-0x00000000050F1000-memory.dmp

        Filesize

        4KB

      • memory/4920-30-0x0000000005140000-0x0000000005141000-memory.dmp

        Filesize

        4KB

      • memory/4920-23-0x0000000005100000-0x0000000005101000-memory.dmp

        Filesize

        4KB

      • memory/4920-29-0x0000000005150000-0x0000000005151000-memory.dmp

        Filesize

        4KB

      • memory/4920-28-0x0000000005120000-0x0000000005121000-memory.dmp

        Filesize

        4KB

      • memory/4920-26-0x00000000050E0000-0x00000000050E1000-memory.dmp

        Filesize

        4KB

      • memory/4920-24-0x0000000005130000-0x0000000005131000-memory.dmp

        Filesize

        4KB

      • memory/4920-25-0x00000000050C0000-0x00000000050C1000-memory.dmp

        Filesize

        4KB

      • memory/4920-27-0x00000000050D0000-0x00000000050D1000-memory.dmp

        Filesize

        4KB

      • memory/4920-31-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-66-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-20-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-78-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-79-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-80-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-81-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-82-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-83-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-84-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-85-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-86-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB

      • memory/4920-87-0x0000000000540000-0x00000000009FE000-memory.dmp

        Filesize

        4.7MB