quasar | fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f

Analysis

max time kernel
147s
max time network
149s
platform
windows10_x64
resource
win10v20201028
submitted
01/03/2021, 23:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
Size

534KB
MD5

1a6cd9334c846e9aadb214cce3c0359a
SHA1

04536a296bb91ca1b702a2eb8d90fff8a9fe5845
SHA256

fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f
SHA512

3e4c35c019076621c785728128c4faf29926371d69a01482558df233de1c74062f77700e6aec1e69f7eec82c11c6f1a21d96e90f0decc189c4ff71f11338bf83

Score

10^/10

quasar venomrat evasion rat rootkit spyware stealer trojan

Malware Config

Signatures

Contains code to disable Windows Defender 2 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/files/0x000100000001ab75-13.dat	disable_win_def
behavioral2/files/0x000100000001ab75-15.dat	disable_win_def

Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089
Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
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 1 IoCs

pid	Process
212	Client.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
496	schtasks.exe
1936	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2676	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
200	powershell.exe
200	powershell.exe
200	powershell.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
508	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
Token: SeDebugPrivilege	200	powershell.exe
Token: SeDebugPrivilege	212	Client.exe
Token: SeDebugPrivilege	212	Client.exe
Token: SeDebugPrivilege	508	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
212	Client.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 652 wrote to memory of 496	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	75
PID 652 wrote to memory of 496	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	75
PID 652 wrote to memory of 496	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	75
PID 652 wrote to memory of 212	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	77
PID 652 wrote to memory of 212	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	77
PID 652 wrote to memory of 212	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	77
PID 652 wrote to memory of 200	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	78
PID 652 wrote to memory of 200	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	78
PID 652 wrote to memory of 200	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	78
PID 212 wrote to memory of 1936	212	Client.exe	80
PID 212 wrote to memory of 1936	212	Client.exe	80
PID 212 wrote to memory of 1936	212	Client.exe	80
PID 652 wrote to memory of 3304	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	85
PID 652 wrote to memory of 3304	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	85
PID 652 wrote to memory of 3304	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	85
PID 3304 wrote to memory of 1472	3304	cmd.exe	87
PID 3304 wrote to memory of 1472	3304	cmd.exe	87
PID 3304 wrote to memory of 1472	3304	cmd.exe	87
PID 652 wrote to memory of 3972	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	88
PID 652 wrote to memory of 3972	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	88
PID 652 wrote to memory of 3972	652	fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe	88
PID 3972 wrote to memory of 3936	3972	cmd.exe	90
PID 3972 wrote to memory of 3936	3972	cmd.exe	90
PID 3972 wrote to memory of 3936	3972	cmd.exe	90
PID 3972 wrote to memory of 2676	3972	cmd.exe	91
PID 3972 wrote to memory of 2676	3972	cmd.exe	91
PID 3972 wrote to memory of 2676	3972	cmd.exe	91
PID 3972 wrote to memory of 508	3972	cmd.exe	92
PID 3972 wrote to memory of 508	3972	cmd.exe	92
PID 3972 wrote to memory of 508	3972	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
"C:\Users\Admin\AppData\Local\Temp\fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe"
1⤵
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:652
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "CheckerFortnite" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:496
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:212
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "CheckerFortnite" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:1936
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:200
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3304
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
    3⤵
    PID:1472
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SauSV3PmXofn.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3972
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:3936
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 10 localhost
    3⤵
    - Runs ping.exe
    PID:2676
- - C:\Users\Admin\AppData\Local\Temp\fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe
    "C:\Users\Admin\AppData\Local\Temp\fbebdf6e8fa43a2458cd66a14dfa5b7127727c55b93a67f40f400e8c48b6a92f.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/200-30-0x0000000007BA0000-0x0000000007BA1000-memory.dmp

Filesize
4KB

Download
memory/200-54-0x00000000094F0000-0x00000000094F1000-memory.dmp

Filesize
4KB

Download
memory/200-37-0x0000000008290000-0x0000000008291000-memory.dmp

Filesize
4KB

Download
memory/200-33-0x00000000083E0000-0x00000000083E1000-memory.dmp

Filesize
4KB

Download
memory/200-52-0x0000000009500000-0x0000000009501000-memory.dmp

Filesize
4KB

Download
memory/200-51-0x0000000000FC3000-0x0000000000FC4000-memory.dmp

Filesize
4KB

Download
memory/200-50-0x000000007EE90000-0x000000007EE91000-memory.dmp

Filesize
4KB

Download
memory/200-49-0x0000000009550000-0x0000000009551000-memory.dmp

Filesize
4KB

Download
memory/200-48-0x0000000009090000-0x0000000009091000-memory.dmp

Filesize
4KB

Download
memory/200-21-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/200-22-0x0000000001330000-0x0000000001331000-memory.dmp

Filesize
4KB

Download
memory/200-23-0x0000000007300000-0x0000000007301000-memory.dmp

Filesize
4KB

Download
memory/200-47-0x0000000009020000-0x0000000009021000-memory.dmp

Filesize
4KB

Download
memory/200-24-0x0000000007200000-0x0000000007201000-memory.dmp

Filesize
4KB

Download
memory/200-27-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

Filesize
4KB

Download
memory/200-26-0x0000000007B10000-0x0000000007B11000-memory.dmp

Filesize
4KB

Download
memory/200-28-0x0000000000FC2000-0x0000000000FC3000-memory.dmp

Filesize
4KB

Download
memory/200-40-0x0000000009040000-0x0000000009073000-memory.dmp

Filesize
204KB

Download
memory/200-32-0x0000000007FB0000-0x0000000007FB1000-memory.dmp

Filesize
4KB

Download
memory/212-38-0x00000000063D0000-0x00000000063D1000-memory.dmp

Filesize
4KB

Download
memory/212-25-0x0000000004E20000-0x0000000004E21000-memory.dmp

Filesize
4KB

Download
memory/212-16-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/508-69-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/508-64-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/652-6-0x0000000004970000-0x0000000004971000-memory.dmp

Filesize
4KB

Download
memory/652-2-0x0000000074090000-0x000000007477E000-memory.dmp

Filesize
6.9MB

Download
memory/652-7-0x0000000004B50000-0x0000000004B51000-memory.dmp

Filesize
4KB

Download
memory/652-10-0x0000000005A60000-0x0000000005A61000-memory.dmp

Filesize
4KB

Download
memory/652-9-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

Download
memory/652-3-0x0000000000040000-0x0000000000041000-memory.dmp

Filesize
4KB

Download
memory/652-8-0x0000000004B60000-0x0000000004B61000-memory.dmp

Filesize
4KB

Download
memory/652-5-0x0000000004E70000-0x0000000004E71000-memory.dmp

Filesize
4KB

Download