General

  • Target

    e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758N.exe

  • Size

    637KB

  • Sample

    241231-1p3s9a1lby

  • MD5

    f1c3e7d4f2ea34ded96047cc76392340

  • SHA1

    60683db56a96afe8ef1557c10fb861ae1081097b

  • SHA256

    e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758

  • SHA512

    9d8cf3b1bc0bb153a364618f0e1038a87549ce9d3c89ae4fd65c24737cb1a07f31a8618fdbb7d66ef9f2e410e3616593f7ba2e2ec4fa1325b8f86147956d4e47

  • SSDEEP

    12288:PFUNDaJTEgdfYe/iKg3qFE4/ywNFpdrdwzTCcdjv:PFOaKUwC5F9ywNFpdJ7cdjv

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

192.168.31.99:4782

2001:4bc9:1f98:a4e::676:4782

255.255.255.0:4782

fe80::cabf:4cff:fe84:9572%17:4782

Mutex

1f65a787-81b8-4955-95e4-b7751e10cd50

Attributes
  • encryption_key

    A0B82A50BBC49EC084E3E53A9E34DF58BD7050B9

  • install_name

    Java Updater.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java Updater

  • subdirectory

    SubDir

Targets

    • Target

      e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758N.exe

    • Size

      637KB

    • MD5

      f1c3e7d4f2ea34ded96047cc76392340

    • SHA1

      60683db56a96afe8ef1557c10fb861ae1081097b

    • SHA256

      e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758

    • SHA512

      9d8cf3b1bc0bb153a364618f0e1038a87549ce9d3c89ae4fd65c24737cb1a07f31a8618fdbb7d66ef9f2e410e3616593f7ba2e2ec4fa1325b8f86147956d4e47

    • SSDEEP

      12288:PFUNDaJTEgdfYe/iKg3qFE4/ywNFpdrdwzTCcdjv:PFOaKUwC5F9ywNFpdJ7cdjv

    • Modifies visiblity of hidden/system files in Explorer

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks