Analysis

  • max time kernel
    143s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 22:18

General

  • Target

    49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

  • Size

    1.6MB

  • MD5

    18b01b395414f9e1108aa08e0c12fc21

  • SHA1

    b96c252cfff68e7a8af09b02770b44010584eb78

  • SHA256

    49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e

  • SHA512

    61a7855cc9cb9ecba8435d9c73d676ccbc6d3fb828c7b73fd7c696bf0d06f7fc8fe64188d54d87ffb35b16393b39ecf1f85596c811eb717e4b49aae8fbae0963

  • SSDEEP

    49152:XlErwK1a3W4u1+ZA/WbBPlB8huaDa2nv+4PEknY:SrwKo3lu+yujIuaDaYPP3Y

Malware Config

Extracted

Family

amadey

Version

4.20

Botnet

18befc

C2

http://5.42.96.141

Attributes
  • install_dir

    908f070dff

  • install_file

    explorku.exe

  • strings_key

    b25a9385246248a95c600f9a061438e1

  • url_paths

    /go34ko8/index.php

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detects executables packed with Themida 49 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Checks BIOS information in registry 2 TTPs 10 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Themida packer 49 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe
    "C:\Users\Admin\AppData\Local\Temp\49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3964
    • C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
      "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      PID:4304
  • C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:1892
  • C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:3352
  • C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:4960

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    Filesize

    1.6MB

    MD5

    18b01b395414f9e1108aa08e0c12fc21

    SHA1

    b96c252cfff68e7a8af09b02770b44010584eb78

    SHA256

    49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e

    SHA512

    61a7855cc9cb9ecba8435d9c73d676ccbc6d3fb828c7b73fd7c696bf0d06f7fc8fe64188d54d87ffb35b16393b39ecf1f85596c811eb717e4b49aae8fbae0963

  • memory/1892-33-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-41-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-32-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-34-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-35-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-36-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-40-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-39-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-38-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/1892-37-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-53-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-49-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-58-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-50-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-52-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-55-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-56-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-54-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3352-51-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-21-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-2-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-6-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-5-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-7-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-8-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-4-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-1-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-3-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/3964-0-0x0000000000E10000-0x0000000001342000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-26-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-30-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-22-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-23-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-28-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-25-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-42-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-27-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-29-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4304-24-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-70-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-72-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-73-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-71-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-69-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-68-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-67-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-66-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB

  • memory/4960-75-0x0000000000FD0000-0x0000000001502000-memory.dmp
    Filesize

    5.2MB