Analysis

  • max time kernel
    135s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/08/2024, 13:57

General

  • Target
    1724421365548437fbee2df8be5f9f2782d09a29d0da43bfe498c7b225b42a47c097d42c7a572.dat-decoded.exe
  • Size 916KB
  • Sample240823-q89e2axgpb
  • SHA256 d4e3e9ccf34249744cc8bbeba02fb11626604b8093edc8d85326b467e6aeb7b1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 2.8.0.1

Botnet
  • Hotels

C2
  • 23.227.193.34:4449

Mutex
  • 5jEbhOzAJJ3VS1IFbs

Attributes
  • encryption_key

    xnJQsQUB6iQCPz2Qqr4i

  • install_name

    cloud.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Startup

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1724421365548437fbee2df8be5f9f2782d09a29d0da43bfe498c7b225b42a47c097d42c7a572.dat-decoded.exe
    "C:\Users\Admin\AppData\Local\Temp\1724421365548437fbee2df8be5f9f2782d09a29d0da43bfe498c7b225b42a47c097d42c7a572.dat-decoded.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3416
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4396,i,6510295916244954942,10164894160290787457,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
    1⤵
      PID:4892

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3416-0-0x000000007511E000-0x000000007511F000-memory.dmp

          memory/3416-1-0x0000000000700000-0x00000000007EC000-memory.dmp

          memory/3416-2-0x00000000057A0000-0x0000000005D44000-memory.dmp

          memory/3416-3-0x00000000052D0000-0x0000000005362000-memory.dmp

          memory/3416-4-0x0000000075110000-0x00000000758C0000-memory.dmp

          memory/3416-5-0x00000000051F0000-0x0000000005256000-memory.dmp

          memory/3416-6-0x0000000006050000-0x0000000006062000-memory.dmp

          memory/3416-7-0x0000000006590000-0x00000000065CC000-memory.dmp

          memory/3416-8-0x0000000006CD0000-0x0000000006CDA000-memory.dmp

          memory/3416-9-0x000000007511E000-0x000000007511F000-memory.dmp

          memory/3416-10-0x0000000075110000-0x00000000758C0000-memory.dmp