Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 01:36

General

  • Target

    58a33e0f77235b76006f2d94b21377c3c259afc612cd44df0d707d70645cc194.exe

  • Size

    1.8MB

  • MD5

    98a30293d97ff1b2f0ce8daaded19581

  • SHA1

    1df329a7a3b12c7e3ec9a7c1906be6db82c1aa8e

  • SHA256

    58a33e0f77235b76006f2d94b21377c3c259afc612cd44df0d707d70645cc194

  • SHA512

    fea45608c22986e814154c98a6ee30b3a99360e337d7bb3c3d344a36a4d89d756dc68ffa3d60152fd3f1e63f9fa4ef1ac8b0d5193648f3781a49dce4a47e6de7

  • SSDEEP

    24576:hHp1iKHep8p+qTwp07IXRMGIyOpL5aaNPGlUN1Z9cnywODwkE2fqPva:8KK8pHTw27GfIyOpNa6rSyDPE5

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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58a33e0f77235b76006f2d94b21377c3c259afc612cd44df0d707d70645cc194.exe
    "C:\Users\Admin\AppData\Local\Temp\58a33e0f77235b76006f2d94b21377c3c259afc612cd44df0d707d70645cc194.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:1164
  • 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:4332
    • 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:3624
      • 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:1376
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:2948
          • 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\660967641992_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4704
      • 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:4520

    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

      98a30293d97ff1b2f0ce8daaded19581

      SHA1

      1df329a7a3b12c7e3ec9a7c1906be6db82c1aa8e

      SHA256

      58a33e0f77235b76006f2d94b21377c3c259afc612cd44df0d707d70645cc194

      SHA512

      fea45608c22986e814154c98a6ee30b3a99360e337d7bb3c3d344a36a4d89d756dc68ffa3d60152fd3f1e63f9fa4ef1ac8b0d5193648f3781a49dce4a47e6de7

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1h4x1tew.0bu.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/1164-8-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

      Filesize

      4KB

    • memory/1164-7-0x0000000004B90000-0x0000000004B91000-memory.dmp

      Filesize

      4KB

    • memory/1164-6-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

      Filesize

      4KB

    • memory/1164-5-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

      Filesize

      4KB

    • memory/1164-3-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

      Filesize

      4KB

    • memory/1164-9-0x0000000004C20000-0x0000000004C21000-memory.dmp

      Filesize

      4KB

    • memory/1164-10-0x0000000004C10000-0x0000000004C11000-memory.dmp

      Filesize

      4KB

    • memory/1164-15-0x0000000000FC0000-0x0000000001458000-memory.dmp

      Filesize

      4.6MB

    • memory/1164-0-0x0000000000FC0000-0x0000000001458000-memory.dmp

      Filesize

      4.6MB

    • memory/1164-4-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

      Filesize

      4KB

    • memory/1164-2-0x0000000000FC0000-0x0000000001458000-memory.dmp

      Filesize

      4.6MB

    • memory/1164-1-0x0000000077E64000-0x0000000077E66000-memory.dmp

      Filesize

      8KB

    • memory/4332-28-0x0000000004A30000-0x0000000004A31000-memory.dmp

      Filesize

      4KB

    • memory/4332-80-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-22-0x00000000049D0000-0x00000000049D1000-memory.dmp

      Filesize

      4KB

    • memory/4332-21-0x00000000049F0000-0x00000000049F1000-memory.dmp

      Filesize

      4KB

    • memory/4332-20-0x00000000049E0000-0x00000000049E1000-memory.dmp

      Filesize

      4KB

    • memory/4332-19-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-27-0x0000000004A40000-0x0000000004A41000-memory.dmp

      Filesize

      4KB

    • memory/4332-24-0x00000000049B0000-0x00000000049B1000-memory.dmp

      Filesize

      4KB

    • memory/4332-29-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-25-0x00000000049C0000-0x00000000049C1000-memory.dmp

      Filesize

      4KB

    • memory/4332-26-0x0000000004A10000-0x0000000004A11000-memory.dmp

      Filesize

      4KB

    • memory/4332-88-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-87-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-86-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-85-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-55-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-84-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-83-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-82-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-81-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-65-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-66-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-18-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-78-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-79-0x0000000000080000-0x0000000000518000-memory.dmp

      Filesize

      4.6MB

    • memory/4332-23-0x0000000004A20000-0x0000000004A21000-memory.dmp

      Filesize

      4KB

    • memory/4704-64-0x00007FFC6DFB0000-0x00007FFC6EA71000-memory.dmp

      Filesize

      10.8MB

    • memory/4704-58-0x000001D7B02A0000-0x000001D7B02AA000-memory.dmp

      Filesize

      40KB

    • memory/4704-57-0x000001D7B02C0000-0x000001D7B02D2000-memory.dmp

      Filesize

      72KB

    • memory/4704-56-0x000001D795F10000-0x000001D795F20000-memory.dmp

      Filesize

      64KB

    • memory/4704-54-0x000001D795F10000-0x000001D795F20000-memory.dmp

      Filesize

      64KB

    • memory/4704-53-0x000001D795F10000-0x000001D795F20000-memory.dmp

      Filesize

      64KB

    • memory/4704-52-0x00007FFC6DFB0000-0x00007FFC6EA71000-memory.dmp

      Filesize

      10.8MB

    • memory/4704-51-0x000001D795F20000-0x000001D795F42000-memory.dmp

      Filesize

      136KB