Resubmissions

13-12-2024 15:32

241213-sylmbsvkap 10

13-12-2024 15:20

241213-sqz5ratrbm 10

Analysis

  • max time kernel
    132s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 15:20

General

  • Target

    R5ALE_Client-built.exe

  • Size

    3.1MB

  • MD5

    cafaa2094366a156294df6341237e491

  • SHA1

    49868d99bb2252ce9911f8b6c94015cd87f24b01

  • SHA256

    9d7cd0429734cb72bc0205287461e459c51cee40f34e5e54513da2315bf8e84a

  • SHA512

    be176c9d7080b522c8a5dc9d219d47ee71ef507473348825073928142b9e9175287140fce137a5fc16d4d5ec0eb96bcc26bbeacf86dd328f9b5492f66b6af675

  • SSDEEP

    49152:zvbI22SsaNYfdPBldt698dBcjHKVE7uo+vJgBoGdBTHHB72eh2NT:zvk22SsaNYfdPBldt6+dBcjHqoj

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

Waix-40247.portmap.host:40247

Mutex

9d84e220-c4b7-4f5c-b179-163c03154a8f

Attributes
  • encryption_key

    B963B2000CDCB4E83B2966F1E1C703720463EE18

  • 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 family
  • Quasar payload 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\R5ALE_Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\R5ALE_Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2000-0-0x000007FEF5E13000-0x000007FEF5E14000-memory.dmp

    Filesize

    4KB

  • memory/2000-1-0x00000000008F0000-0x0000000000C14000-memory.dmp

    Filesize

    3.1MB

  • memory/2000-2-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

    Filesize

    9.9MB

  • memory/2000-3-0x000007FEF5E13000-0x000007FEF5E14000-memory.dmp

    Filesize

    4KB

  • memory/2000-4-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

    Filesize

    9.9MB