Analysis

  • max time kernel
    147s
  • 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 19:03

General

  • Target

    bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe

  • Size

    2.4MB

  • MD5

    f7f2373c7005d9978782be75bef6a1c4

  • SHA1

    24523818e79c6ccc38c90de912743552e98be2be

  • SHA256

    bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13

  • SHA512

    26e4a9ba65207c91dd181c5010d051838d6172dcbfc165aa750cbe72297dde0b0c0e54b024a6cba070089f3ac5f943d67ba779ee64f78a8f37b425f274f607d8

  • SSDEEP

    49152:IK08+UO8Ajkw2s5uNuuiV/0H31F7AqxxJ/PgWAOEIm9B1:/V+UTwDl5eiGXPNxxJQxIm

Malware Config

Extracted

Family

stealc

Botnet

jony

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

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

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 4 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 8 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Identifies Wine through registry keys 2 TTPs 4 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 12 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe
    "C:\Users\Admin\AppData\Local\Temp\bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe
        "C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe"
        3⤵
        • 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
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1432
        • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
          "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
          4⤵
          • 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:1384
          • C:\Users\Admin\AppData\Local\Temp\1000006001\f68583d236.exe
            "C:\Users\Admin\AppData\Local\Temp\1000006001\f68583d236.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:4176
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FHJEGIIEGI.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:3416
  • 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:2760
  • 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:3036

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\f68583d236.exe

    Filesize

    2.4MB

    MD5

    05dda1c444fe4feda4771f75598d55d7

    SHA1

    3369deefd76ea12c621aad635547be857720d7d8

    SHA256

    9a501e3c19a488ab6672598e26af59a019c471aaf67adcd1dba4734d7a2b9e48

    SHA512

    01c7897fa5995332c466035f62e45faf12ff0cead90655df53c0b493833656c177b53594a0d8300c792fc43d2f6daa577e3f949f6e9118c950472d1a85ac6160

  • C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe

    Filesize

    1.8MB

    MD5

    5e33887744d5344a28c8d5f16702af26

    SHA1

    75a1791a1819ebaa602202a82e8e969081cee2e4

    SHA256

    c07406805d442d5d9cdf4b80f9568d8b0e16652292e3c7a0eb0487dc0ede8721

    SHA512

    de95b45ab2cdf2090f18065bfadb72b9d581eb2c59045b02127329d31364ca8de63371f34dc0c5f6dab00f36c2ebb213de5225a3d63e4535bc9b397d522554ab

  • memory/1384-112-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-122-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-130-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-129-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-128-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-124-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-94-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-123-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-121-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-120-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-119-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-113-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-114-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1384-115-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/1432-92-0x00000000007A0000-0x0000000000C46000-memory.dmp

    Filesize

    4.6MB

  • memory/1432-81-0x00000000007A0000-0x0000000000C46000-memory.dmp

    Filesize

    4.6MB

  • memory/2760-118-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/2760-117-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/3036-127-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/3036-126-0x0000000000040000-0x00000000004E6000-memory.dmp

    Filesize

    4.6MB

  • memory/4176-111-0x0000000000640000-0x000000000123B000-memory.dmp

    Filesize

    12.0MB

  • memory/4176-110-0x0000000000640000-0x000000000123B000-memory.dmp

    Filesize

    12.0MB

  • memory/4460-1-0x000000007EAD0000-0x000000007EEA1000-memory.dmp

    Filesize

    3.8MB

  • memory/4460-76-0x0000000000510000-0x00000000010EF000-memory.dmp

    Filesize

    11.9MB

  • memory/4460-0-0x0000000000510000-0x00000000010EF000-memory.dmp

    Filesize

    11.9MB

  • memory/4460-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4460-77-0x000000007EAD0000-0x000000007EEA1000-memory.dmp

    Filesize

    3.8MB