Analysis

  • max time kernel
    299s
  • max time network
    330s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2022, 04:01

General

  • Target

    12db007413571ceab4f4e4aecd5270f015b027a671c17efbc07db4967167b46b.exe

  • Size

    1.7MB

  • MD5

    aba4aae2a1f0ab9149cce695d254782e

  • SHA1

    41b5ef7a15aa23bbb43e4ca9349a87529bd6a49c

  • SHA256

    12db007413571ceab4f4e4aecd5270f015b027a671c17efbc07db4967167b46b

  • SHA512

    7ebb27e2b7ec50506421eecd95babb4ae8e1aef92eb0f79136ca29b0323d80c5a41b452fc05c9395097406d2413cd558e9bc02899247a4eda19f8da5931741a3

  • SSDEEP

    24576:PUxJIRCRoenYQb6VOJ8Kgn1beVuumyEU:

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Cio

C2

162.19.131.197:4782

Mutex

c5fdf017-8f44-47ea-a69e-0b82e4044ca7

Attributes
  • encryption_key

    59A92039F951E5069C9F50FD9F340E759713B058

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\12db007413571ceab4f4e4aecd5270f015b027a671c17efbc07db4967167b46b.exe
    "C:\Users\Admin\AppData\Local\Temp\12db007413571ceab4f4e4aecd5270f015b027a671c17efbc07db4967167b46b.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:912
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1316
    • C:\Users\Admin\AppData\Local\Temp\12db007413571ceab4f4e4aecd5270f015b027a671c17efbc07db4967167b46b.exe
      C:\Users\Admin\AppData\Local\Temp\12db007413571ceab4f4e4aecd5270f015b027a671c17efbc07db4967167b46b.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:784

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/784-67-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/784-65-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/784-72-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/784-70-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/784-66-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/784-62-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/784-63-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/912-55-0x0000000000D70000-0x0000000000E52000-memory.dmp

    Filesize

    904KB

  • memory/912-54-0x0000000001020000-0x00000000011E0000-memory.dmp

    Filesize

    1.8MB

  • memory/912-56-0x00000000048B0000-0x0000000004942000-memory.dmp

    Filesize

    584KB

  • memory/1316-61-0x000000006F940000-0x000000006FEEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1316-60-0x000000006F940000-0x000000006FEEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1316-59-0x000000006F940000-0x000000006FEEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1316-58-0x0000000076091000-0x0000000076093000-memory.dmp

    Filesize

    8KB