General

  • Target

    cb8c4074612cd630a1907bf5aeb4c2ec70bd8ecff6dac5ef1f4704a36abc38c7.exe

  • Size

    1.7MB

  • Sample

    240807-cma4fsyakl

  • MD5

    b770d62550d8ff48c7fd45dd04d790f2

  • SHA1

    3c4747ad182898466a9314e536fda1fe5983db42

  • SHA256

    cb8c4074612cd630a1907bf5aeb4c2ec70bd8ecff6dac5ef1f4704a36abc38c7

  • SHA512

    602a3f853fad15269234257501386a12d8992b0390ae8f2808c2f31ab56c75746cde5b913843fa82277fbe6837a1eb0feb7df636d1bc6026d359f578e5154413

  • SSDEEP

    49152:cKJU9ltTMMRYpY4TJtqjv7KtGQdHyedH7:zi5TMM+Dg7K0WHj7

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

o7lab

C2

154.216.20.242:5000

gia.o7lab.me:5000

Mutex

GpMiIzUX7KoW

Attributes
  • delay

    3

  • install

    false

  • install_file

    $77svchost.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

0.5.8

C2

blue.o7lab.me:7777

server.underground-cheat.xyz:7777

Mutex

dtDtRWyW1m1g

Attributes
  • delay

    3

  • install

    false

  • install_file

    $77WinUpdate.exe

  • install_folder

    %AppData%

aes.plain
aes.plain

Extracted

Family

redline

Botnet

gia.o7lab.me:26644

C2

gia.o7lab.me:26644

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

o7lab

C2

154.216.20.242:4449

Mutex

voddalsrlcsfjcxz

Attributes
  • delay

    4

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      cb8c4074612cd630a1907bf5aeb4c2ec70bd8ecff6dac5ef1f4704a36abc38c7.exe

    • Size

      1.7MB

    • MD5

      b770d62550d8ff48c7fd45dd04d790f2

    • SHA1

      3c4747ad182898466a9314e536fda1fe5983db42

    • SHA256

      cb8c4074612cd630a1907bf5aeb4c2ec70bd8ecff6dac5ef1f4704a36abc38c7

    • SHA512

      602a3f853fad15269234257501386a12d8992b0390ae8f2808c2f31ab56c75746cde5b913843fa82277fbe6837a1eb0feb7df636d1bc6026d359f578e5154413

    • SSDEEP

      49152:cKJU9ltTMMRYpY4TJtqjv7KtGQdHyedH7:zi5TMM+Dg7K0WHj7

    • AsyncRat

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

    • Detect Neshta payload

    • Modifies security service

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • 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.

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

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

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks