Resubmissions

04-12-2024 07:47

241204-jmh8dsyjgs 10

03-12-2024 09:46

241203-lrs99szmav 10

General

  • Target

    H-Malware Builder V5.exe

  • Size

    407KB

  • Sample

    241203-lrs99szmav

  • MD5

    c8f6d76b4ae82978272bde392561c4f4

  • SHA1

    80447d36fcf88cc9caa806db53e22d9468cc31ee

  • SHA256

    c981ebcf0c0cf857162ae35b9385c22d3198c2ec9ea00e37fcfe74a79eb3510e

  • SHA512

    10fa87f050a9ceb658e443317158ef8b1dbaa9e183ec61b5e5e42adb562f7918d996134aba7f0bbad852def4d6b0824c7b9716628b554194d0fd95974de6b2ad

  • SSDEEP

    12288:r5p4UNBN3aqeKNoRfwoZrHMBV9EwEcb8+DvtuWUb:r9N3aqPCRooZwBjEhcYcvYWUb

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://github.com/MalwareTeam/SecurityHealthService/raw/main/SecurityHealthService.exe

exe.dropper

https://raw.githubusercontent.com/ninhpn1337/Disable-Windows-Defender/main/source.bat

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

bay-helps.gl.at.ply.gg:36538

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      H-Malware Builder V5.exe

    • Size

      407KB

    • MD5

      c8f6d76b4ae82978272bde392561c4f4

    • SHA1

      80447d36fcf88cc9caa806db53e22d9468cc31ee

    • SHA256

      c981ebcf0c0cf857162ae35b9385c22d3198c2ec9ea00e37fcfe74a79eb3510e

    • SHA512

      10fa87f050a9ceb658e443317158ef8b1dbaa9e183ec61b5e5e42adb562f7918d996134aba7f0bbad852def4d6b0824c7b9716628b554194d0fd95974de6b2ad

    • SSDEEP

      12288:r5p4UNBN3aqeKNoRfwoZrHMBV9EwEcb8+DvtuWUb:r9N3aqPCRooZwBjEhcYcvYWUb

    • AsyncRat

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

    • Asyncrat family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks