General

  • Target
    shellcode_pack.exe
  • Size 50.6MB
  • Sample261031-3wvsbs1vdy
  • SHA256 70bc7c91943ed1f012ce4aa7918afd3a62379403e8920c24d065e981e602ce00
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • 34.51.206.15:4444

Mutex
  • 0UFRbhO0Gv3m

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • njrat

Version
  • 0.7d

Botnet
  • HacKed

C2
  • dllsys.duckdns.org:3202

Mutex
  • 3b570ffeeb3d34249b9a5ce0ee58a328

Attributes
  • reg_key

    3b570ffeeb3d34249b9a5ce0ee58a328

  • splitter

    svchost

Targets

    • Target
      shellcode_pack.exe
    • Size 50.6MB
    • SHA256 70bc7c91943ed1f012ce4aa7918afd3a62379403e8920c24d065e981e602ce00
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Async RAT payload

    • Detects Shellter Trojan

    • Family: AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Family: Shellter Trojan

      Shellter is a dynamic shellcode injector used to hide malicious payloads within existing PE files for evasion.

    • Family: njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Executes a file named after a Windows system binary

      The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

    • Executes dropped EXE

    • Loads dropped DLL

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks