Analysis

  • max time kernel
    174s
  • max time network
    200s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 14:22

General

  • Target

    d13a25f8c9dcf0cd27369a3889e37cfa00801ccaf9ac0a5da9e68d6b9cade24b.exe

  • Size

    348KB

  • MD5

    d554b7ab2ef4f1699f6d77ceb470d01e

  • SHA1

    a77b165e67682ef32c10f9e4dc4a235f4cc9e01c

  • SHA256

    d13a25f8c9dcf0cd27369a3889e37cfa00801ccaf9ac0a5da9e68d6b9cade24b

  • SHA512

    e96539eff34e66ff587c787b90e29181a0167fc0fa2c2ae9fd0208f80fe2b2df2c9ce1f4b2f5c1e65235f3d22b9e02f31ea83357481b23019306120c3fae92c6

  • SSDEEP

    6144:bzNHXf500M2zw/HXLo6K2bXZvWhJzAUKIVZA6:/d50oUHXlKKhvIE6

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

contodapug.con-ip.com:3000

Mutex

QSR_MUTEX_l1M93VuqIyiH8hEQ4I

Attributes
  • encryption_key

    rsiMb9hEmi3ZSrW5tyPG

  • 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 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.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d13a25f8c9dcf0cd27369a3889e37cfa00801ccaf9ac0a5da9e68d6b9cade24b.exe
    "C:\Users\Admin\AppData\Local\Temp\d13a25f8c9dcf0cd27369a3889e37cfa00801ccaf9ac0a5da9e68d6b9cade24b.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4036

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4036-0-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4036-1-0x0000000000710000-0x000000000076E000-memory.dmp

    Filesize

    376KB

  • memory/4036-2-0x0000000005600000-0x0000000005BA4000-memory.dmp

    Filesize

    5.6MB

  • memory/4036-3-0x00000000050F0000-0x0000000005182000-memory.dmp

    Filesize

    584KB

  • memory/4036-4-0x0000000004FA0000-0x0000000004FB0000-memory.dmp

    Filesize

    64KB

  • memory/4036-5-0x0000000005050000-0x00000000050B6000-memory.dmp

    Filesize

    408KB

  • memory/4036-6-0x00000000055D0000-0x00000000055E2000-memory.dmp

    Filesize

    72KB

  • memory/4036-7-0x0000000075220000-0x00000000759D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4036-8-0x00000000063D0000-0x000000000640C000-memory.dmp

    Filesize

    240KB

  • memory/4036-9-0x0000000006580000-0x000000000658A000-memory.dmp

    Filesize

    40KB

  • memory/4036-10-0x0000000004FA0000-0x0000000004FB0000-memory.dmp

    Filesize

    64KB