Analysis

  • max time kernel
    78s
  • max time network
    133s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13-06-2024 15:51

General

  • Target

    Uni.exe

  • Size

    348KB

  • MD5

    eadc6298cf80a65da86c5f095d80365b

  • SHA1

    4f15223e11f8305096832673e7d3330551dde643

  • SHA256

    1f46634fd66862bbe110740bd12d9989421ba0e22ab97cebf220b481b191ca2f

  • SHA512

    1b2835f018524c98ba66dfcf02b191f11131d9b7907961d13ddbdf22fac8c8fe6168fbc0bf98c4ac3d8067ab6c2d7ab9eab64cc82c0662d183847456624f17d3

  • SSDEEP

    6144:bzL3HRsM+OFZsDfyaALjuWndicpbPf9ZOK8niVbkmJu:XVP+MPFnBpf9ZORniVbkmJu

Malware Config

Extracted

Family

quasar

Version

3.0.1

Botnet

Nigga

C2

runderscore00-37568.portmap.host:37568

Mutex

QSR_MUTEX_Jk9UNyFvu6bseKbzj7

Attributes
  • encryption_key

    1hhxPzuu9tRn0FXFEBW4

  • install_name

    $sxr-powershell.exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    3000

  • startup_key

    Powershell

  • subdirectory

    $sxr-seroxen2

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
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Uni.exe
    "C:\Users\Admin\AppData\Local\Temp\Uni.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1296

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1296-0-0x00000000735EE000-0x00000000735EF000-memory.dmp

    Filesize

    4KB

  • memory/1296-1-0x00000000003A0000-0x00000000003FE000-memory.dmp

    Filesize

    376KB

  • memory/1296-2-0x0000000005290000-0x000000000578E000-memory.dmp

    Filesize

    5.0MB

  • memory/1296-3-0x0000000004D90000-0x0000000004E22000-memory.dmp

    Filesize

    584KB

  • memory/1296-4-0x00000000735E0000-0x0000000073CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/1296-5-0x0000000004C50000-0x0000000004CB6000-memory.dmp

    Filesize

    408KB

  • memory/1296-6-0x00000000058D0000-0x00000000058E2000-memory.dmp

    Filesize

    72KB

  • memory/1296-7-0x0000000005CC0000-0x0000000005CFE000-memory.dmp

    Filesize

    248KB

  • memory/1296-9-0x0000000006130000-0x000000000613A000-memory.dmp

    Filesize

    40KB

  • memory/1296-10-0x00000000735EE000-0x00000000735EF000-memory.dmp

    Filesize

    4KB

  • memory/1296-11-0x00000000735E0000-0x0000000073CCE000-memory.dmp

    Filesize

    6.9MB