quasar | 4113f5b8526a18afb979ae9d4649c7e01abdf2c311608be8cd131a301298ea20

General

Target

4113f5b8526a18afb979ae9d4649c7e01abdf2c311608be8cd131a301298ea20
Size

754KB
Sample

221125-k2yr3aaf5w
MD5

7458e53900eacc8d1c0738a242bf3d8b
SHA1

c7665e28afc4b44882916d4abf8acf17abf5ce59
SHA256

4113f5b8526a18afb979ae9d4649c7e01abdf2c311608be8cd131a301298ea20
SHA512

7c8872c2769466762131464780e8982e8f9da652b2524bf13f0c7c8044f61ed54b0df1869ed1f62d6413c0b321176c327daa33d6a15144ab0e5b549c5fd93da2
SSDEEP

12288:C9cxy4jZZ8vDc6h3iUhFbAsUMdzxP0V2t5fI44FPTZFyd4:C9cxy4jZ+vDc05hFXxxEIfhe7yd4

Score

10^/10

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

hacked

C2

23.105.131.178:7812

Mutex

VNM_MUTEX_0Ae9WwC7TPO9smz3BJ

Attributes

encryption_key
jCEkwlvO5Scyan0S8vZo
install_name
Windows Security Health Service.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Update
subdirectory
Microsoft

Targets

- Target
  
  4113f5b8526a18afb979ae9d4649c7e01abdf2c311608be8cd131a301298ea20
- Size
  
  754KB
- MD5
  
  7458e53900eacc8d1c0738a242bf3d8b
- SHA1
  
  c7665e28afc4b44882916d4abf8acf17abf5ce59
- SHA256
  
  4113f5b8526a18afb979ae9d4649c7e01abdf2c311608be8cd131a301298ea20
- SHA512
  
  7c8872c2769466762131464780e8982e8f9da652b2524bf13f0c7c8044f61ed54b0df1869ed1f62d6413c0b321176c327daa33d6a15144ab0e5b549c5fd93da2
- SSDEEP
  
  12288:C9cxy4jZZ8vDc6h3iUhFbAsUMdzxP0V2t5fI44FPTZFyd4:C9cxy4jZ+vDc05hFXxxEIfhe7yd4
Score

10^/10

quasar venomrat hacked evasion persistence rat rootkit spyware stealer trojan
- Contains code to disable Windows Defender
  A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- Quasar RAT
  Quasar is an open source Remote Access Tool.
  trojan spyware quasar
- Quasar payload
- VenomRAT
  VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
  rat rootkit stealer venomrat
- Executes dropped EXE
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Windows security modification
  evasion trojan
- Adds Run key to start application
  persistence
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext
behavioral1 behavioral2