Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-03-2024 13:56

General

  • Target

    9cda0811519068e7105a88e1fa7914172483639769f4088f49abb0ea8f2b53b7.exe

  • Size

    1.8MB

  • MD5

    84f8a62131b758731dac05c1b6ea9354

  • SHA1

    9f4c86697c014d0188f21e27f631692a7c6416f8

  • SHA256

    9cda0811519068e7105a88e1fa7914172483639769f4088f49abb0ea8f2b53b7

  • SHA512

    074b47804c317445e206471d743791714a3bf83ea4f78181f57f0f3643f341bc912e67a78609feaa93fc7a2b46adbec2db1c0cceae323048f0f501fbad35fd89

  • SSDEEP

    24576:0HlG42OZ96DtCN2H5yVEhA6ZGw2AvLVImyJGjuXoCWpIGYdaxamraqY8wJPxbiR/:0HleOZ0BbwMjvg2KflzXd92nAYm

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\9cda0811519068e7105a88e1fa7914172483639769f4088f49abb0ea8f2b53b7.exe
    "C:\Users\Admin\AppData\Local\Temp\9cda0811519068e7105a88e1fa7914172483639769f4088f49abb0ea8f2b53b7.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:2284
  • 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:2780
    • 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:3176
      • 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:1636
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1788
          • 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\497073144238_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4108
      • 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:704

    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

      84f8a62131b758731dac05c1b6ea9354

      SHA1

      9f4c86697c014d0188f21e27f631692a7c6416f8

      SHA256

      9cda0811519068e7105a88e1fa7914172483639769f4088f49abb0ea8f2b53b7

      SHA512

      074b47804c317445e206471d743791714a3bf83ea4f78181f57f0f3643f341bc912e67a78609feaa93fc7a2b46adbec2db1c0cceae323048f0f501fbad35fd89

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vzshmamb.prw.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/2284-5-0x0000000004A00000-0x0000000004A01000-memory.dmp

      Filesize

      4KB

    • memory/2284-3-0x0000000004A10000-0x0000000004A11000-memory.dmp

      Filesize

      4KB

    • memory/2284-7-0x00000000049E0000-0x00000000049E1000-memory.dmp

      Filesize

      4KB

    • memory/2284-6-0x0000000004A40000-0x0000000004A41000-memory.dmp

      Filesize

      4KB

    • memory/2284-8-0x00000000049F0000-0x00000000049F1000-memory.dmp

      Filesize

      4KB

    • memory/2284-9-0x0000000004A70000-0x0000000004A71000-memory.dmp

      Filesize

      4KB

    • memory/2284-10-0x0000000004A60000-0x0000000004A61000-memory.dmp

      Filesize

      4KB

    • memory/2284-15-0x0000000000EE0000-0x00000000013A9000-memory.dmp

      Filesize

      4.8MB

    • memory/2284-0-0x0000000000EE0000-0x00000000013A9000-memory.dmp

      Filesize

      4.8MB

    • memory/2284-4-0x0000000004A20000-0x0000000004A21000-memory.dmp

      Filesize

      4KB

    • memory/2284-2-0x0000000000EE0000-0x00000000013A9000-memory.dmp

      Filesize

      4.8MB

    • memory/2284-1-0x0000000076F64000-0x0000000076F66000-memory.dmp

      Filesize

      8KB

    • memory/2780-25-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

      Filesize

      4KB

    • memory/2780-30-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-23-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

      Filesize

      4KB

    • memory/2780-24-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

      Filesize

      4KB

    • memory/2780-20-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

      Filesize

      4KB

    • memory/2780-26-0x0000000004F20000-0x0000000004F21000-memory.dmp

      Filesize

      4KB

    • memory/2780-27-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-28-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-29-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-65-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-21-0x0000000004EE0000-0x0000000004EE1000-memory.dmp

      Filesize

      4KB

    • memory/2780-19-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-81-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-22-0x0000000004F00000-0x0000000004F01000-memory.dmp

      Filesize

      4KB

    • memory/2780-80-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-79-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-78-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-77-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/2780-18-0x0000000000CB0000-0x0000000001179000-memory.dmp

      Filesize

      4.8MB

    • memory/4108-53-0x00007FFF6B680000-0x00007FFF6C141000-memory.dmp

      Filesize

      10.8MB

    • memory/4108-64-0x00007FFF6B680000-0x00007FFF6C141000-memory.dmp

      Filesize

      10.8MB

    • memory/4108-58-0x00000191752B0000-0x00000191752BA000-memory.dmp

      Filesize

      40KB

    • memory/4108-57-0x0000019177850000-0x0000019177862000-memory.dmp

      Filesize

      72KB

    • memory/4108-56-0x00000191752C0000-0x00000191752D0000-memory.dmp

      Filesize

      64KB

    • memory/4108-54-0x00000191752C0000-0x00000191752D0000-memory.dmp

      Filesize

      64KB

    • memory/4108-55-0x00000191752C0000-0x00000191752D0000-memory.dmp

      Filesize

      64KB

    • memory/4108-43-0x0000019174D20000-0x0000019174D42000-memory.dmp

      Filesize

      136KB