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
    03-07-2024 21:04

General

  • Target

    80de317f2f3f6db2e0dab1b9b4cd3304a9fbb9bf9ecc300334450c445a6e8583.exe

  • Size

    1.8MB

  • MD5

    175ccb16cffddf9a2e684b87464e850b

  • SHA1

    199136921c7cfaf2d68df193a8486a854c923f64

  • SHA256

    80de317f2f3f6db2e0dab1b9b4cd3304a9fbb9bf9ecc300334450c445a6e8583

  • SHA512

    70e5a3bafd0a4b294f2c651511e2c0b360f4665c2b8b9c0fb49b1e33b84215a2acd5c37593f82976a09c69db8271265c0f0901bab3bf05ce695ef465943814e4

  • SSDEEP

    49152:YC2lX/901uBKjAB4evZTo/dp81mu+G/wSkzcu7lJq:YHx/AdzevZw4aG4RcYJq

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 FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\80de317f2f3f6db2e0dab1b9b4cd3304a9fbb9bf9ecc300334450c445a6e8583.exe
    "C:\Users\Admin\AppData\Local\Temp\80de317f2f3f6db2e0dab1b9b4cd3304a9fbb9bf9ecc300334450c445a6e8583.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
    • Suspicious use of WriteProcessMemory
    PID:2436
    • 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:3516
      • C:\Users\Admin\AppData\Local\Temp\1000006001\88f750d3f1.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\88f750d3f1.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:1412
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKECBAKFBG.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:8
          • C:\Users\Admin\AppData\Local\Temp\BKECBAKFBG.exe
            "C:\Users\Admin\AppData\Local\Temp\BKECBAKFBG.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:944
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HDGDGHCAAK.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:4952
  • 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:2476
  • 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:3872

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\88f750d3f1.exe

    Filesize

    2.4MB

    MD5

    f7f2373c7005d9978782be75bef6a1c4

    SHA1

    24523818e79c6ccc38c90de912743552e98be2be

    SHA256

    bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13

    SHA512

    26e4a9ba65207c91dd181c5010d051838d6172dcbfc165aa750cbe72297dde0b0c0e54b024a6cba070089f3ac5f943d67ba779ee64f78a8f37b425f274f607d8

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

    Filesize

    1.8MB

    MD5

    175ccb16cffddf9a2e684b87464e850b

    SHA1

    199136921c7cfaf2d68df193a8486a854c923f64

    SHA256

    80de317f2f3f6db2e0dab1b9b4cd3304a9fbb9bf9ecc300334450c445a6e8583

    SHA512

    70e5a3bafd0a4b294f2c651511e2c0b360f4665c2b8b9c0fb49b1e33b84215a2acd5c37593f82976a09c69db8271265c0f0901bab3bf05ce695ef465943814e4

  • memory/944-123-0x0000000000F20000-0x00000000013D2000-memory.dmp

    Filesize

    4.7MB

  • memory/944-121-0x0000000000F20000-0x00000000013D2000-memory.dmp

    Filesize

    4.7MB

  • memory/1412-116-0x0000000000F40000-0x0000000001B1F000-memory.dmp

    Filesize

    11.9MB

  • memory/1412-43-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1412-42-0x0000000000F40000-0x0000000001B1F000-memory.dmp

    Filesize

    11.9MB

  • memory/2436-5-0x00000000001D0000-0x0000000000682000-memory.dmp

    Filesize

    4.7MB

  • memory/2436-0-0x00000000001D0000-0x0000000000682000-memory.dmp

    Filesize

    4.7MB

  • memory/2436-18-0x00000000001D0000-0x0000000000682000-memory.dmp

    Filesize

    4.7MB

  • memory/2436-3-0x00000000001D0000-0x0000000000682000-memory.dmp

    Filesize

    4.7MB

  • memory/2436-2-0x00000000001D1000-0x00000000001FF000-memory.dmp

    Filesize

    184KB

  • memory/2436-1-0x0000000077DB6000-0x0000000077DB8000-memory.dmp

    Filesize

    8KB

  • memory/2476-111-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/2476-110-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-20-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-125-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-25-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-24-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-23-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-22-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-21-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-120-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-19-0x00000000008D1000-0x00000000008FF000-memory.dmp

    Filesize

    184KB

  • memory/3516-16-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-124-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-36-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-126-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-127-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-128-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-130-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-137-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-136-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-134-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3516-135-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3872-133-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB

  • memory/3872-131-0x00000000008D0000-0x0000000000D82000-memory.dmp

    Filesize

    4.7MB