Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04-07-2024 01:25

General

  • Target

    a2af4191c71b061b4869588d8e64911f1934b784675fc40018ff40333fbd8540.exe

  • Size

    1.8MB

  • MD5

    d7695d73a7f4b98447dbebff21720788

  • SHA1

    38d17f524b7e0e4e15c03ab808ee79dff618e088

  • SHA256

    a2af4191c71b061b4869588d8e64911f1934b784675fc40018ff40333fbd8540

  • SHA512

    f7b5d31cbb5ef533392afc19e0364185bd14f8e1c1536f55d9a04e79ea8226b053e9c1529f4ebc22ccd6ea015efd793aa2fe6885c94716704b965d8a25a8bc5c

  • SSDEEP

    49152:0gHzmsGO9B066nQR+0VL/ecW08wwPPqp4YVTuEwXU:5msbB0twvL/12pPSp4fEwXU

Malware Config

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

jony

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Signatures

  • Amadey

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

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 10 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Identifies Wine through registry keys 2 TTPs 5 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 8 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2af4191c71b061b4869588d8e64911f1934b784675fc40018ff40333fbd8540.exe
    "C:\Users\Admin\AppData\Local\Temp\a2af4191c71b061b4869588d8e64911f1934b784675fc40018ff40333fbd8540.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 WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
      2⤵
      • 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:4940
      • C:\Users\Admin\AppData\Local\Temp\1000006001\8aa2fb95cf.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\8aa2fb95cf.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2440
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HIIEBAFCBK.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4816
          • C:\Users\Admin\AppData\Local\Temp\HIIEBAFCBK.exe
            "C:\Users\Admin\AppData\Local\Temp\HIIEBAFCBK.exe"
            5⤵
            • 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
            PID:3508
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FCFBFBFBKF.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:4320
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
    PID:3456
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
    PID:4900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\Temp\1000006001\8aa2fb95cf.exe

    Filesize

    2.4MB

    MD5

    1323616c7b4228edd3735c144d4632c2

    SHA1

    34c45567ebdfcfeeb9d950aa527bf3bac2709a41

    SHA256

    96a32d13cd84073e06f1b0c27c7daf3192bbce58278fbf5c1270bcae4c0eba37

    SHA512

    d023ba0ec57b3a80fdba972c259b60f4f3779a0d9692317e3e009507b8adf9bb66b63aa09214677dd8294750d7e8d6250722b5687fcca1e9eb7da16718c6a079

  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe

    Filesize

    1.8MB

    MD5

    d7695d73a7f4b98447dbebff21720788

    SHA1

    38d17f524b7e0e4e15c03ab808ee79dff618e088

    SHA256

    a2af4191c71b061b4869588d8e64911f1934b784675fc40018ff40333fbd8540

    SHA512

    f7b5d31cbb5ef533392afc19e0364185bd14f8e1c1536f55d9a04e79ea8226b053e9c1529f4ebc22ccd6ea015efd793aa2fe6885c94716704b965d8a25a8bc5c

  • memory/1500-0-0x0000000000640000-0x0000000000B0B000-memory.dmp

    Filesize

    4.8MB

  • memory/1500-1-0x0000000077196000-0x0000000077198000-memory.dmp

    Filesize

    8KB

  • memory/1500-16-0x0000000000640000-0x0000000000B0B000-memory.dmp

    Filesize

    4.8MB

  • memory/1500-2-0x0000000000641000-0x000000000066F000-memory.dmp

    Filesize

    184KB

  • memory/1500-5-0x0000000000640000-0x0000000000B0B000-memory.dmp

    Filesize

    4.8MB

  • memory/1500-3-0x0000000000640000-0x0000000000B0B000-memory.dmp

    Filesize

    4.8MB

  • memory/2440-37-0x0000000000A90000-0x0000000001689000-memory.dmp

    Filesize

    12.0MB

  • memory/2440-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2440-105-0x0000000000A90000-0x0000000001689000-memory.dmp

    Filesize

    12.0MB

  • memory/2440-109-0x0000000000A90000-0x0000000001689000-memory.dmp

    Filesize

    12.0MB

  • memory/3456-121-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/3456-120-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/3508-114-0x00000000002F0000-0x00000000007BB000-memory.dmp

    Filesize

    4.8MB

  • memory/3508-115-0x00000000002F0000-0x00000000007BB000-memory.dmp

    Filesize

    4.8MB

  • memory/4900-130-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4900-132-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-21-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-113-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-116-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-117-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-118-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-80-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-20-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-122-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-123-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-124-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-125-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-126-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-127-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-19-0x0000000000D91000-0x0000000000DBF000-memory.dmp

    Filesize

    184KB

  • memory/4940-129-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-18-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-133-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-134-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-135-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-136-0x0000000000D90000-0x000000000125B000-memory.dmp

    Filesize

    4.8MB