Analysis

  • max time kernel
    143s
  • max time network
    139s
  • 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 15:53

General

  • Target

    f20be87e9914ae3b7f6043cc3486a0341ee4a7c3cf77775173a3f5a76bbc1349.exe

  • Size

    1.8MB

  • MD5

    4e12569d3c3e421f624fd7560ac127a2

  • SHA1

    26f8c2a60857610d52a0059d77ade380ffab43e3

  • SHA256

    f20be87e9914ae3b7f6043cc3486a0341ee4a7c3cf77775173a3f5a76bbc1349

  • SHA512

    d5889cbe06fafb6ba5aaec3c144b3adf9dfdfa1567474c65f7d4470a71b0134e40ce675ec338701dfe619faf6d74a5b0ad745ed11fbbd5f757b0e430f1e262ae

  • SSDEEP

    24576:QeYfsNZDecs30G1mI9DBDUZi9dEoQE+0PzxXPjXpMW09LGtQPIamK9xdvoUWV:QeFzaSId2od+0dfLryLMazNob

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 7 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\f20be87e9914ae3b7f6043cc3486a0341ee4a7c3cf77775173a3f5a76bbc1349.exe
    "C:\Users\Admin\AppData\Local\Temp\f20be87e9914ae3b7f6043cc3486a0341ee4a7c3cf77775173a3f5a76bbc1349.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:4940
    • 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:1076
      • C:\Users\Admin\AppData\Local\Temp\1000006001\f212e20ae1.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\f212e20ae1.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:1936
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\GCBKFIEBGC.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4848
          • C:\Users\Admin\AppData\Local\Temp\GCBKFIEBGC.exe
            "C:\Users\Admin\AppData\Local\Temp\GCBKFIEBGC.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:816
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CBAKFCBFHJ.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:3380
  • 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:3912
  • 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:952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\f212e20ae1.exe

    Filesize

    2.4MB

    MD5

    05dda1c444fe4feda4771f75598d55d7

    SHA1

    3369deefd76ea12c621aad635547be857720d7d8

    SHA256

    9a501e3c19a488ab6672598e26af59a019c471aaf67adcd1dba4734d7a2b9e48

    SHA512

    01c7897fa5995332c466035f62e45faf12ff0cead90655df53c0b493833656c177b53594a0d8300c792fc43d2f6daa577e3f949f6e9118c950472d1a85ac6160

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

    Filesize

    1.8MB

    MD5

    4e12569d3c3e421f624fd7560ac127a2

    SHA1

    26f8c2a60857610d52a0059d77ade380ffab43e3

    SHA256

    f20be87e9914ae3b7f6043cc3486a0341ee4a7c3cf77775173a3f5a76bbc1349

    SHA512

    d5889cbe06fafb6ba5aaec3c144b3adf9dfdfa1567474c65f7d4470a71b0134e40ce675ec338701dfe619faf6d74a5b0ad745ed11fbbd5f757b0e430f1e262ae

  • memory/816-113-0x0000000000B10000-0x0000000000FDF000-memory.dmp

    Filesize

    4.8MB

  • memory/816-112-0x0000000000B10000-0x0000000000FDF000-memory.dmp

    Filesize

    4.8MB

  • memory/952-130-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/952-129-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-20-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-118-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-21-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-19-0x0000000000A71000-0x0000000000A9F000-memory.dmp

    Filesize

    184KB

  • memory/1076-135-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-134-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-80-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-133-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-16-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-132-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-131-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-128-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-114-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-115-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-116-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-126-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-125-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-124-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-122-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1076-123-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/1936-108-0x0000000000770000-0x000000000136B000-memory.dmp

    Filesize

    12.0MB

  • memory/1936-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1936-37-0x0000000000770000-0x000000000136B000-memory.dmp

    Filesize

    12.0MB

  • memory/3912-121-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/3912-119-0x0000000000A70000-0x0000000000F3F000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-0-0x00000000006B0000-0x0000000000B7F000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-2-0x00000000006B1000-0x00000000006DF000-memory.dmp

    Filesize

    184KB

  • memory/4940-3-0x00000000006B0000-0x0000000000B7F000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-1-0x0000000077CD6000-0x0000000077CD8000-memory.dmp

    Filesize

    8KB

  • memory/4940-5-0x00000000006B0000-0x0000000000B7F000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-18-0x00000000006B0000-0x0000000000B7F000-memory.dmp

    Filesize

    4.8MB