Analysis

  • max time kernel
    143s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    03-07-2024 09:48

General

  • Target

    file.exe

  • Size

    2.4MB

  • MD5

    43a78a6987bf599db55f41bd3cd1d011

  • SHA1

    b55a8d60de946c9151de60df2225dce89c95be43

  • SHA256

    ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420

  • SHA512

    808312620b6c2517876aa4f744a53be817fa9b0b5cdcb681943da060652957519c20e9f533f602dc6cdc8a0068a01e526cff797156f67b0f350f38c7b55bbbf4

  • SSDEEP

    49152:Temt0UCcKZDPedhvpY6aUOisJzakKlfpazVxg4F2OhRoZqiwIG:NucKVERevisqlfMv1QO/oZJq

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

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

  • Executes dropped EXE 3 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

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

  • Loads dropped DLL 6 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 5 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 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.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:2172
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\IIEBKJECFC.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Users\Admin\AppData\Local\Temp\IIEBKJECFC.exe
        "C:\Users\Admin\AppData\Local\Temp\IIEBKJECFC.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2712
        • 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
          • Loads dropped DLL
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1596
          • C:\Users\Admin\AppData\Local\Temp\1000006001\9fed913d31.exe
            "C:\Users\Admin\AppData\Local\Temp\1000006001\9fed913d31.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CFIEHCFIEC.exe"
      2⤵
        PID:2136

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1000006001\9fed913d31.exe

      Filesize

      2.4MB

      MD5

      43a78a6987bf599db55f41bd3cd1d011

      SHA1

      b55a8d60de946c9151de60df2225dce89c95be43

      SHA256

      ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420

      SHA512

      808312620b6c2517876aa4f744a53be817fa9b0b5cdcb681943da060652957519c20e9f533f602dc6cdc8a0068a01e526cff797156f67b0f350f38c7b55bbbf4

    • \ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • \ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • \Users\Admin\AppData\Local\Temp\IIEBKJECFC.exe

      Filesize

      1.8MB

      MD5

      0f767ab9de8f50d18c8506f5f0d567fa

      SHA1

      491a38357ee3a44aad8c129d41271fcbfe3c5a62

      SHA256

      17d4e9b1afe9f6dfac2d3598a4e90b553c52102965957686504f3d5e6aa8d5c6

      SHA512

      78d424661ac8ecc42a66f561ece458d2588017f7d2e4b854abe84ca9a6afb253aef90ce2eae613a01606137836f9274985a0eeb78ebed5980fe59497ef467eb9

    • memory/832-143-0x00000000011C0000-0x0000000001DA1000-memory.dmp

      Filesize

      11.9MB

    • memory/832-140-0x00000000011C0000-0x0000000001DA1000-memory.dmp

      Filesize

      11.9MB

    • memory/1596-144-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-147-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-117-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-159-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-158-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-157-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-137-0x0000000006D90000-0x0000000007971000-memory.dmp

      Filesize

      11.9MB

    • memory/1596-139-0x0000000006D90000-0x0000000007971000-memory.dmp

      Filesize

      11.9MB

    • memory/1596-156-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-155-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-154-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-153-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-146-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-152-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-148-0x0000000006D90000-0x0000000007971000-memory.dmp

      Filesize

      11.9MB

    • memory/1596-149-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-150-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/1596-151-0x0000000000A10000-0x0000000000EC2000-memory.dmp

      Filesize

      4.7MB

    • memory/2172-0-0x0000000000B60000-0x0000000001741000-memory.dmp

      Filesize

      11.9MB

    • memory/2172-1-0x0000000000B60000-0x0000000001741000-memory.dmp

      Filesize

      11.9MB

    • memory/2172-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2172-65-0x0000000000B60000-0x0000000001741000-memory.dmp

      Filesize

      11.9MB

    • memory/2584-99-0x00000000022C0000-0x0000000002772000-memory.dmp

      Filesize

      4.7MB

    • memory/2712-145-0x0000000007030000-0x00000000074E2000-memory.dmp

      Filesize

      4.7MB

    • memory/2712-116-0x0000000007030000-0x00000000074E2000-memory.dmp

      Filesize

      4.7MB

    • memory/2712-115-0x0000000000240000-0x00000000006F2000-memory.dmp

      Filesize

      4.7MB