General

  • Target
    AgentSetup.exe
  • Size 213.4MB
  • Sample240323-snmrmsbe6s
  • SHA256 72ec6f81b0de47f93bb8941bd86a10377a0bd6e5f188120679396ede0886a4b3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet
  • Default

C2
  • inteldns.ddns.me:4449

Mutex
  • lofeuunpwty

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      AgentSetup.exe
    • Size 213.4MB
    • SHA256 72ec6f81b0de47f93bb8941bd86a10377a0bd6e5f188120679396ede0886a4b3
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

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

    • UAC bypass

    • Windows security bypass

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

    • Target
      $TEMP/AgentSetup.exe
    • Size 215.8MB
    • SHA256 84372730101078190450b74595424f2cee64e2563ce8f024fce69e9206ba42e4
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Target
      $TEMP/WindowsUpdates.exe
    • Size 487KB
    • SHA256 8d2f5e538fecbbc4e1b210e46a3ff23e83d3e5d41889620a152d64e5837664f9
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

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

    • UAC bypass

    • Windows security bypass

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks