General

  • Target

    new.bat

  • Size

    33KB

  • Sample

    250109-xkbmesxngs

  • MD5

    878627c4bca0ba302c23e3cda27b71f6

  • SHA1

    b530ab3d16cf53c9a397586c2d71e7374ad80e89

  • SHA256

    f70797c423c2807efbb81828b6a179099bc12a8adf852c02128cca7c67d4172b

  • SHA512

    f5e073b50b4042540e096f6ec691941b25f22f5fe3c3dd252a064a2672ac091910ef5711bd6f6c17b7af222d9f93063fc3f94be08eed57558c2f77d1917f318c

  • SSDEEP

    192:b+OyBLHo3fzcQD889AANVsoVVCB0+VZ3zdYxDcis:b+WN489AU+oTCB0YZ3uxDcL

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

fvanach.duckdns.org:7878

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

gvasync.duckdns.org:8797

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

ybvenomg.duckdns.org:8890

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

xworm

Version

3.1

C2

hjxwrm3.duckdns.org:8895

novxwor9402.duckdns.org:9402

Mutex

SftRwoP5yGpHaEZd

Attributes
  • install_file

    USB.exe

aes.plain
aes.plain

Extracted

Family

xworm

Version

5.0

C2

gvxwrm5.duckdns.org:8896

Mutex

3I9i4htBzR3bPWXw

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    Spotify.exe

aes.plain

Extracted

Family

remcos

Botnet

RemoteHost

C2

rec8100nov.duckdns.org:8100

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-DSVPV7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      new.bat

    • Size

      33KB

    • MD5

      878627c4bca0ba302c23e3cda27b71f6

    • SHA1

      b530ab3d16cf53c9a397586c2d71e7374ad80e89

    • SHA256

      f70797c423c2807efbb81828b6a179099bc12a8adf852c02128cca7c67d4172b

    • SHA512

      f5e073b50b4042540e096f6ec691941b25f22f5fe3c3dd252a064a2672ac091910ef5711bd6f6c17b7af222d9f93063fc3f94be08eed57558c2f77d1917f318c

    • SSDEEP

      192:b+OyBLHo3fzcQD889AANVsoVVCB0+VZ3zdYxDcis:b+WN489AU+oTCB0YZ3uxDcL

    • AsyncRat

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

    • Asyncrat family

    • Detect Xworm Payload

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Remcos family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Enumerates processes with tasklist

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks