Analysis

  • max time kernel
    144s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    30-06-2024 08:20

General

  • Target

    44809186c26c6851b67bd98c5498f3ca.exe

  • Size

    1.9MB

  • MD5

    44809186c26c6851b67bd98c5498f3ca

  • SHA1

    32de1b7315ecf0f684cb5e3f5b6ccc8b77b214f5

  • SHA256

    b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8

  • SHA512

    80c31c6b5bc3dd6c7c6be4301f37748e31906e27d19b217601b105bad092aab11c7a24be7a9ad885b113fa24dc77775df8200e2238c7cd91fca19b9a05f40982

  • SSDEEP

    49152:0vGfBq3ndOzIxgNSqDsslj7MpDtGq4mzX:0vSkozImQqDssRMp7TzX

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

default

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 3 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Identifies Wine through registry keys 2 TTPs 3 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 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\44809186c26c6851b67bd98c5498f3ca.exe
    "C:\Users\Admin\AppData\Local\Temp\44809186c26c6851b67bd98c5498f3ca.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • 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:2952
    • 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
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3028
      • C:\Users\Admin\AppData\Local\Temp\1000006001\6d179b3bee.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\6d179b3bee.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:1148
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FIIEGDBAEB.exe"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1576
          • C:\Users\Admin\AppData\Local\Temp\FIIEGDBAEB.exe
            "C:\Users\Admin\AppData\Local\Temp\FIIEGDBAEB.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:1184
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\GHJKJDAKEH.exe"
          4⤵
            PID:836

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Unsecured Credentials

    3
    T1552

    Credentials In Files

    3
    T1552.001

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1000006001\6d179b3bee.exe
      Filesize

      2.4MB

      MD5

      bc0f1d24f1c98fcd6e2116280b1f3f3d

      SHA1

      af5b3a8688c594f8cea2915decf5dd69ab8af022

      SHA256

      0f3dd40065569d334baa28f67143cec736c0b42dfa265b9034376cadf69acabc

      SHA512

      72fcef84f1e1904049fea465da5c77009bc289e7383dc82c91a7d1b56b0a4d19f220d6ef48ff82e912028ec9906feeb0ae4cf4452d1a38606448d80a7234b4a2

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

      1.9MB

      MD5

      44809186c26c6851b67bd98c5498f3ca

      SHA1

      32de1b7315ecf0f684cb5e3f5b6ccc8b77b214f5

      SHA256

      b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8

      SHA512

      80c31c6b5bc3dd6c7c6be4301f37748e31906e27d19b217601b105bad092aab11c7a24be7a9ad885b113fa24dc77775df8200e2238c7cd91fca19b9a05f40982

    • \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

    • memory/1148-40-0x0000000000CD0000-0x00000000018CE000-memory.dmp
      Filesize

      12.0MB

    • memory/1148-42-0x0000000061E00000-0x0000000061EF3000-memory.dmp
      Filesize

      972KB

    • memory/1148-99-0x0000000000CD0000-0x00000000018CE000-memory.dmp
      Filesize

      12.0MB

    • memory/1184-139-0x0000000000900000-0x0000000000DD5000-memory.dmp
      Filesize

      4.8MB

    • memory/1184-141-0x0000000000900000-0x0000000000DD5000-memory.dmp
      Filesize

      4.8MB

    • memory/2952-5-0x00000000000D0000-0x00000000005A5000-memory.dmp
      Filesize

      4.8MB

    • memory/2952-0-0x00000000000D0000-0x00000000005A5000-memory.dmp
      Filesize

      4.8MB

    • memory/2952-14-0x00000000069C0000-0x0000000006E95000-memory.dmp
      Filesize

      4.8MB

    • memory/2952-17-0x00000000000D0000-0x00000000005A5000-memory.dmp
      Filesize

      4.8MB

    • memory/2952-3-0x00000000000D0000-0x00000000005A5000-memory.dmp
      Filesize

      4.8MB

    • memory/2952-2-0x00000000000D1000-0x00000000000FF000-memory.dmp
      Filesize

      184KB

    • memory/2952-1-0x0000000076F20000-0x0000000076F22000-memory.dmp
      Filesize

      8KB

    • memory/3028-19-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-148-0x0000000005F90000-0x0000000006B8E000-memory.dmp
      Filesize

      12.0MB

    • memory/3028-38-0x0000000005F90000-0x0000000006B8E000-memory.dmp
      Filesize

      12.0MB

    • memory/3028-96-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-21-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-138-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-18-0x00000000002B1000-0x00000000002DF000-memory.dmp
      Filesize

      184KB

    • memory/3028-15-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-145-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-146-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-147-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-41-0x0000000005F90000-0x0000000006B8E000-memory.dmp
      Filesize

      12.0MB

    • memory/3028-149-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-150-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-151-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-152-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-153-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-154-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-155-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-156-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-157-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-158-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-159-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB

    • memory/3028-160-0x00000000002B0000-0x0000000000785000-memory.dmp
      Filesize

      4.8MB