Analysis

  • max time kernel
    143s
  • max time network
    117s
  • 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 10:54

General

  • Target

    b8763ae0f7c36cf431cbdcbdae0e26d32397a6d6504be149033349edb946ef76.exe

  • Size

    1.8MB

  • MD5

    b14355d46d70554875d9f725cd2f39ee

  • SHA1

    07bb1d46406f12b45dfb11014d83668d5efb5fce

  • SHA256

    b8763ae0f7c36cf431cbdcbdae0e26d32397a6d6504be149033349edb946ef76

  • SHA512

    b29a554871d465a31103ba68547cc3c42803d7a895b1ef9a287d58355b4ae708dcbfa84ca417f330d71e44c3237797ba095c6c7a1ce5d20e633a5db16568de2e

  • SSDEEP

    49152:zBQLNn13aqFIzfDfjJS1fQjWAC7odZJAJMVgB:luaqKJRjhrAJMV4

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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8763ae0f7c36cf431cbdcbdae0e26d32397a6d6504be149033349edb946ef76.exe
    "C:\Users\Admin\AppData\Local\Temp\b8763ae0f7c36cf431cbdcbdae0e26d32397a6d6504be149033349edb946ef76.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:4008
    • 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:244
      • C:\Users\Admin\AppData\Local\Temp\1000006001\c43be90733.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\c43be90733.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:4488
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2304
          • C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.exe
            "C:\Users\Admin\AppData\Local\Temp\BFCFBFBFBK.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:4544
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\ECGHJJEHDH.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:4960
  • 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:5040
  • 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:2392

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\c43be90733.exe

    Filesize

    2.4MB

    MD5

    43a78a6987bf599db55f41bd3cd1d011

    SHA1

    b55a8d60de946c9151de60df2225dce89c95be43

    SHA256

    ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420

    SHA512

    808312620b6c2517876aa4f744a53be817fa9b0b5cdcb681943da060652957519c20e9f533f602dc6cdc8a0068a01e526cff797156f67b0f350f38c7b55bbbf4

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

    Filesize

    1.8MB

    MD5

    b14355d46d70554875d9f725cd2f39ee

    SHA1

    07bb1d46406f12b45dfb11014d83668d5efb5fce

    SHA256

    b8763ae0f7c36cf431cbdcbdae0e26d32397a6d6504be149033349edb946ef76

    SHA512

    b29a554871d465a31103ba68547cc3c42803d7a895b1ef9a287d58355b4ae708dcbfa84ca417f330d71e44c3237797ba095c6c7a1ce5d20e633a5db16568de2e

  • memory/244-114-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-129-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-135-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-134-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-19-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-20-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-21-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-133-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-119-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-118-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-77-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-120-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-128-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-127-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-106-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-126-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-18-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-125-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-124-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/244-117-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/2392-131-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/2392-132-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/4008-15-0x00000000006E0000-0x0000000000B9E000-memory.dmp

    Filesize

    4.7MB

  • memory/4008-1-0x0000000077206000-0x0000000077208000-memory.dmp

    Filesize

    8KB

  • memory/4008-0-0x00000000006E0000-0x0000000000B9E000-memory.dmp

    Filesize

    4.7MB

  • memory/4008-5-0x00000000006E0000-0x0000000000B9E000-memory.dmp

    Filesize

    4.7MB

  • memory/4008-3-0x00000000006E0000-0x0000000000B9E000-memory.dmp

    Filesize

    4.7MB

  • memory/4008-2-0x00000000006E1000-0x000000000070F000-memory.dmp

    Filesize

    184KB

  • memory/4488-37-0x0000000000280000-0x0000000000E61000-memory.dmp

    Filesize

    11.9MB

  • memory/4488-100-0x0000000000280000-0x0000000000E61000-memory.dmp

    Filesize

    11.9MB

  • memory/4488-110-0x0000000000280000-0x0000000000E61000-memory.dmp

    Filesize

    11.9MB

  • memory/4488-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4544-116-0x00000000003D0000-0x000000000088E000-memory.dmp

    Filesize

    4.7MB

  • memory/4544-115-0x00000000003D0000-0x000000000088E000-memory.dmp

    Filesize

    4.7MB

  • memory/5040-122-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB

  • memory/5040-123-0x0000000000400000-0x00000000008BE000-memory.dmp

    Filesize

    4.7MB