Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240214-en
  • resource tags

    arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-03-2024 14:05

General

  • Target

    8936192ea7d48b269cd973461e52017eef18deaa14ad6fdd1bb38f78b945e668.exe

  • Size

    1.8MB

  • MD5

    6a9790598a40ba512d686dc2ed2bdc37

  • SHA1

    80864d90e09bbcd59e939f0f4fe3e5c0ea6fbadd

  • SHA256

    8936192ea7d48b269cd973461e52017eef18deaa14ad6fdd1bb38f78b945e668

  • SHA512

    3ce7bcc5b004712b7a5ae80884af9f01fffc42295d057905c7b748c678076cffd670bea767e67e32d16c302389149f39d27968f847e75f1be2b8666cd8466251

  • SSDEEP

    49152:8jPbj3wnDqgfNdaIS/IfgXdU5m5wuOlHCYS:8vjKTV0rI45jsi7

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 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\8936192ea7d48b269cd973461e52017eef18deaa14ad6fdd1bb38f78b945e668.exe
    "C:\Users\Admin\AppData\Local\Temp\8936192ea7d48b269cd973461e52017eef18deaa14ad6fdd1bb38f78b945e668.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:5096
  • 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:1784
    • 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:3468
      • 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:3068
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:3172
          • 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\567984660271_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1020
      • 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:1668

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      425KB

      MD5

      951f3fbdf6f651f796f5826981682f64

      SHA1

      d94e667980510113222406960680b3bf703ac055

      SHA256

      77c13d3824de0de2e764697365262efb1745582fe158ab516bec51060177263f

      SHA512

      43e863d85fa47c95d400e6c884699bc61618ce84a5422a9aa497202492f63306e845e9a4c85adbafdd44eb91fde6f9278056ef89416a99bfed71482df9b7ac73

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

      Filesize

      1.8MB

      MD5

      6a9790598a40ba512d686dc2ed2bdc37

      SHA1

      80864d90e09bbcd59e939f0f4fe3e5c0ea6fbadd

      SHA256

      8936192ea7d48b269cd973461e52017eef18deaa14ad6fdd1bb38f78b945e668

      SHA512

      3ce7bcc5b004712b7a5ae80884af9f01fffc42295d057905c7b748c678076cffd670bea767e67e32d16c302389149f39d27968f847e75f1be2b8666cd8466251

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mls040on.0hr.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/1020-62-0x00007FFD1CA90000-0x00007FFD1D552000-memory.dmp

      Filesize

      10.8MB

    • memory/1020-56-0x0000024DB43C0000-0x0000024DB43CA000-memory.dmp

      Filesize

      40KB

    • memory/1020-55-0x0000024DB43D0000-0x0000024DB43E2000-memory.dmp

      Filesize

      72KB

    • memory/1020-54-0x0000024DB3F40000-0x0000024DB3F50000-memory.dmp

      Filesize

      64KB

    • memory/1020-53-0x0000024DB3F40000-0x0000024DB3F50000-memory.dmp

      Filesize

      64KB

    • memory/1020-52-0x00007FFD1CA90000-0x00007FFD1D552000-memory.dmp

      Filesize

      10.8MB

    • memory/1020-45-0x0000024DB3FF0000-0x0000024DB4012000-memory.dmp

      Filesize

      136KB

    • memory/1784-28-0x0000000004C00000-0x0000000004C01000-memory.dmp

      Filesize

      4KB

    • memory/1784-77-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-18-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-19-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-21-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

      Filesize

      4KB

    • memory/1784-25-0x0000000004B90000-0x0000000004B91000-memory.dmp

      Filesize

      4KB

    • memory/1784-24-0x0000000004B80000-0x0000000004B81000-memory.dmp

      Filesize

      4KB

    • memory/1784-26-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

      Filesize

      4KB

    • memory/1784-23-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

      Filesize

      4KB

    • memory/1784-22-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

      Filesize

      4KB

    • memory/1784-20-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

      Filesize

      4KB

    • memory/1784-27-0x0000000004C10000-0x0000000004C11000-memory.dmp

      Filesize

      4KB

    • memory/1784-86-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-29-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-85-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-42-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-84-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-83-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-82-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-81-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-80-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-79-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-78-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-76-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-63-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/1784-64-0x0000000000B40000-0x000000000100C000-memory.dmp

      Filesize

      4.8MB

    • memory/5096-1-0x0000000077C36000-0x0000000077C38000-memory.dmp

      Filesize

      8KB

    • memory/5096-2-0x0000000000550000-0x0000000000A1C000-memory.dmp

      Filesize

      4.8MB

    • memory/5096-15-0x0000000000550000-0x0000000000A1C000-memory.dmp

      Filesize

      4.8MB

    • memory/5096-4-0x0000000004E90000-0x0000000004E91000-memory.dmp

      Filesize

      4KB

    • memory/5096-3-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

      Filesize

      4KB

    • memory/5096-7-0x0000000004E80000-0x0000000004E81000-memory.dmp

      Filesize

      4KB

    • memory/5096-8-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

      Filesize

      4KB

    • memory/5096-6-0x0000000004E70000-0x0000000004E71000-memory.dmp

      Filesize

      4KB

    • memory/5096-5-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

      Filesize

      4KB

    • memory/5096-9-0x0000000004F00000-0x0000000004F01000-memory.dmp

      Filesize

      4KB

    • memory/5096-10-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

      Filesize

      4KB

    • memory/5096-0-0x0000000000550000-0x0000000000A1C000-memory.dmp

      Filesize

      4.8MB