General

  • Target

    Synaptics.exe

  • Size

    764KB

  • Sample

    250201-la6h9syjbp

  • MD5

    85e3d4ac5a6ef32fb93764c090ef32b7

  • SHA1

    adedb0aab26d15cf96f66fda8b4cfbbdcc15ef52

  • SHA256

    4e5cc8cb98584335400d00f0a0803c3e0202761f3fbe50bcab3858a80df255e1

  • SHA512

    a7a037bde41bcd425be18a712e27a793185f7fde638e139bbd9d253c371cd9622385eda39cf91ab715ead2591cff5b8c9f5b31d903f138d8af7bab6a9001ccab

  • SSDEEP

    12288:6MSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9Ufbj:6nsJ39LyjbJkQFMhmC+6GD9mH

Malware Config

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Extracted

Family

xworm

C2

127.0.0.1:48990

147.185.221.22:48990

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:8080

Mutex

WlO6Om8yfxIARVE4

Attributes
  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/7G6zzQwJ

aes.plain
aes.plain

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

0.tcp.in.ngrok.io:14296

Mutex

cc827307-beb6-456e-b5dd-e28a204ebd45

Attributes
  • encryption_key

    93486CAE624EBAD6626412E4A7DC6221B139DAA8

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Synaptics.exe

    • Size

      764KB

    • MD5

      85e3d4ac5a6ef32fb93764c090ef32b7

    • SHA1

      adedb0aab26d15cf96f66fda8b4cfbbdcc15ef52

    • SHA256

      4e5cc8cb98584335400d00f0a0803c3e0202761f3fbe50bcab3858a80df255e1

    • SHA512

      a7a037bde41bcd425be18a712e27a793185f7fde638e139bbd9d253c371cd9622385eda39cf91ab715ead2591cff5b8c9f5b31d903f138d8af7bab6a9001ccab

    • SSDEEP

      12288:6MSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9Ufbj:6nsJ39LyjbJkQFMhmC+6GD9mH

    • Detect Xworm Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Xred

      Xred is backdoor written in Delphi.

    • Xred family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

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

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks