Analysis

  • max time kernel
    120s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    28-06-2024 11:28

General

  • Target

    1719574025627b073e3a8c5305f96b035036cfec7704e9460be5cfb9ab2884f98b23595163302.dat-decoded.exe

  • Size

    916KB

  • MD5

    fb57053d7202dbaca1e71a649047597f

  • SHA1

    b5c39ce77aa7c9a0f5f044eb887fb4baec3ce0db

  • SHA256

    a53a585de940ceb15a7b30f6d6157b0e9722d7b81cea4a2dadb1f0c7410fae87

  • SHA512

    fe4f64695c0121180b2a0829f82cee6de42170d17b34125f1ac0741580e58c1c282ea1bc5d1a0c8a3ae597f3e2dc014c8980416a2bfdcf30db98df984cf1ab43

  • SSDEEP

    24576:tmkdueXjq0OQKc2YSEegpQRDLusJLK1lkyoLP:IkdueXjq0OQKc2YSEegpshk1lk

Malware Config

Extracted

Family

quasar

Version

2.8.0.1

Botnet

backup

C2

45.40.96.164:5552

Mutex

4zqoNUTZKMvnLHkoUD

Attributes
  • encryption_key

    S2EJJjFXQqrAnFg7XBWE

  • install_name

    Registry.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Hotels Client 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.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1719574025627b073e3a8c5305f96b035036cfec7704e9460be5cfb9ab2884f98b23595163302.dat-decoded.exe
    "C:\Users\Admin\AppData\Local\Temp\1719574025627b073e3a8c5305f96b035036cfec7704e9460be5cfb9ab2884f98b23595163302.dat-decoded.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2080

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2080-0-0x00000000742DE000-0x00000000742DF000-memory.dmp

    Filesize

    4KB

  • memory/2080-1-0x0000000001080000-0x000000000116C000-memory.dmp

    Filesize

    944KB

  • memory/2080-2-0x00000000742D0000-0x00000000749BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2080-3-0x00000000742DE000-0x00000000742DF000-memory.dmp

    Filesize

    4KB

  • memory/2080-4-0x00000000742D0000-0x00000000749BE000-memory.dmp

    Filesize

    6.9MB