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General

  • Target
    yuki.exe
  • Size 3.1MB
  • Sample260930-31exnsxvft
  • SHA256 6385ad6321efcfddbbd5664b98ca1b503ef2cef3c7db2bc57dc102eae3e78437
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
yukitrojanspywarequasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • yuki

C2

  • 127.0.0.1:4782

Mutex

  • 33db8075-ea8a-4427-b3f7-997a55a95452

Attributes
  • encryption_key

    ADBC38AF6C8DEF447BE1E08CD277876A050ABBEE

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java Updater

  • subdirectory

    SubDir

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • yuki.exe
    .exe 3.1MB

yuki.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 6385ad6321efcfddbbd5664b98ca1b503ef2cef3c7db2bc57dc102eae3e78437
  • MD5 SHA1 SHA512 SSDEEP TLSH
windows:4windowsx86arch:x86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269582
Magic Number
267
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE
PDB paths