quasar | dd48521142eddeff589404be6780f58bcdc07c0e4e4348f19ec84d73adaffb25

Resubmissions

07-11-2024 02:17

241107-cq8h5avrbq 10

06-11-2024 22:40

241106-2llk8s1raj 10

Analysis

max time kernel
52s
max time network
179s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 22:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

procesosCUI7254178000020150023000.exe
Size

908KB
MD5

e93703d8357807ba8be42ce5bd71d99b
SHA1

f557b727748f4aa01265b2bc8e46b6201b5f3b7c
SHA256

fa083a970c90e1e17f4aa83ccd7f0bf52b5e0f35eaf4eeda73abdc115d9b55b9
SHA512

b8ad5c57586b70a769d1f9562148de63a3c5835d6a35d3302f33d4d20619254ae5ae6a1703fb26aaa574d96ba15b053359fe0b17059577256a86ebeb53a9b5af
SSDEEP

24576:Fg/fK9XbMAWE9XEhG7q9efZyHS7en+gIlh:q4Mj4088HS7e+gIlh

Score

10^/10

quasar defense_evasion discovery evasion execution impact persistence ransomware spyware trojan

Malware Config

Signatures

Contains code to disable Windows Defender 5 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/2728-13-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2728-17-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2728-22-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2728-19-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2728-11-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def

Modifies Windows Defender Real-time Protection settings 3 TTPs 9 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	Vespre.exe

Modifies security service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WinDefend\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WinDefend\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4"	procesosCUI7254178000020150023000.exe

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2728-13-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2728-17-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2728-22-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2728-19-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2728-11-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	procesosCUI7254178000020150023000.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

Vespre.exeprocesosCUI7254178000020150023000.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	procesosCUI7254178000020150023000.exe

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Executes dropped EXE 2 IoCs

Processes:

Vespre.exeVespre.exe

pid	Process
3048	Vespre.exe
2488	Vespre.exe

Loads dropped DLL 1 IoCs

Processes:

procesosCUI7254178000020150023000.exe

pid	Process
2728	procesosCUI7254178000020150023000.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

Vespre.exeprocesosCUI7254178000020150023000.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\DisableAntiSpyware = "1"	Vespre.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\DisableAntiSpyware = "1"	procesosCUI7254178000020150023000.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\iceTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\procesosCUI7254178000020150023000.exe\""	procesosCUI7254178000020150023000.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iceTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Roaming\\GPret\\Vespre.exe\""	Vespre.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\iceTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Roaming\\GPret\\Vespre.exe\""	Vespre.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iceTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\procesosCUI7254178000020150023000.exe\""	procesosCUI7254178000020150023000.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	procesosCUI7254178000020150023000.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Vespre.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

Processes:

flow	ioc
4	pastebin.com
5	pastebin.com
9	pastebin.com

Looks up external IP address via web service 1 IoCs

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

Processes:

flow	ioc
6	ip-api.com

Modifies Security services 2 TTPs 16 IoCs

Modifies the startup behavior of a security service.

defense_evasion

Modify Registry

T1112

Impair Defenses

T1562

Processes:

Vespre.exeprocesosCUI7254178000020150023000.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdNisSvc\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdFilter\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdFilter\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdNisDrv\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdNisSvc\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdNisSvc\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdNisDrv\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdFilter\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdNisSvc\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdBoot\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdBoot\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdFilter\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdNisDrv\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdNisDrv\Start = "4"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WdBoot\Start = "4"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WdBoot\Start = "4"	procesosCUI7254178000020150023000.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	pid	Process	procid_target
PID 2524 set thread context of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 3048 set thread context of 2488	3048	Vespre.exe	41

System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

procesosCUI7254178000020150023000.exeschtasks.exepowershell.exeVespre.exepowershell.exevssadmin.exeprocesosCUI7254178000020150023000.exeschtasks.exevssadmin.exeVespre.exeschtasks.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	procesosCUI7254178000020150023000.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vespre.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vssadmin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	procesosCUI7254178000020150023000.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vssadmin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vespre.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Interacts with shadow copies 3 TTPs 2 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

Processes:

vssadmin.exevssadmin.exe

pid	Process
2008	vssadmin.exe
1888	vssadmin.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exeschtasks.exe

pid	Process
3052	schtasks.exe
2468	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exepowershell.exe

pid	Process
2440	powershell.exe
2544	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

procesosCUI7254178000020150023000.exevssvc.exepowershell.exeVespre.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2728	procesosCUI7254178000020150023000.exe
Token: SeBackupPrivilege	1032	vssvc.exe
Token: SeRestorePrivilege	1032	vssvc.exe
Token: SeAuditPrivilege	1032	vssvc.exe
Token: SeDebugPrivilege	2440	powershell.exe
Token: SeDebugPrivilege	2488	Vespre.exe
Token: SeDebugPrivilege	2544	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Vespre.exe

pid	Process
2488	Vespre.exe

Suspicious use of WriteProcessMemory 54 IoCs

Processes:

procesosCUI7254178000020150023000.exeprocesosCUI7254178000020150023000.exeVespre.exeVespre.exe

description	pid	Process	procid_target
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2524 wrote to memory of 2728	2524	procesosCUI7254178000020150023000.exe	29
PID 2728 wrote to memory of 3052	2728	procesosCUI7254178000020150023000.exe	31
PID 2728 wrote to memory of 3052	2728	procesosCUI7254178000020150023000.exe	31
PID 2728 wrote to memory of 3052	2728	procesosCUI7254178000020150023000.exe	31
PID 2728 wrote to memory of 3052	2728	procesosCUI7254178000020150023000.exe	31
PID 2728 wrote to memory of 2428	2728	procesosCUI7254178000020150023000.exe	33
PID 2728 wrote to memory of 2428	2728	procesosCUI7254178000020150023000.exe	33
PID 2728 wrote to memory of 2428	2728	procesosCUI7254178000020150023000.exe	33
PID 2728 wrote to memory of 2428	2728	procesosCUI7254178000020150023000.exe	33
PID 2728 wrote to memory of 2008	2728	procesosCUI7254178000020150023000.exe	35
PID 2728 wrote to memory of 2008	2728	procesosCUI7254178000020150023000.exe	35
PID 2728 wrote to memory of 2008	2728	procesosCUI7254178000020150023000.exe	35
PID 2728 wrote to memory of 2008	2728	procesosCUI7254178000020150023000.exe	35
PID 2728 wrote to memory of 2440	2728	procesosCUI7254178000020150023000.exe	38
PID 2728 wrote to memory of 2440	2728	procesosCUI7254178000020150023000.exe	38
PID 2728 wrote to memory of 2440	2728	procesosCUI7254178000020150023000.exe	38
PID 2728 wrote to memory of 2440	2728	procesosCUI7254178000020150023000.exe	38
PID 2728 wrote to memory of 3048	2728	procesosCUI7254178000020150023000.exe	40
PID 2728 wrote to memory of 3048	2728	procesosCUI7254178000020150023000.exe	40
PID 2728 wrote to memory of 3048	2728	procesosCUI7254178000020150023000.exe	40
PID 2728 wrote to memory of 3048	2728	procesosCUI7254178000020150023000.exe	40
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 3048 wrote to memory of 2488	3048	Vespre.exe	41
PID 2488 wrote to memory of 2468	2488	Vespre.exe	42
PID 2488 wrote to memory of 2468	2488	Vespre.exe	42
PID 2488 wrote to memory of 2468	2488	Vespre.exe	42
PID 2488 wrote to memory of 2468	2488	Vespre.exe	42
PID 2488 wrote to memory of 1776	2488	Vespre.exe	44
PID 2488 wrote to memory of 1776	2488	Vespre.exe	44
PID 2488 wrote to memory of 1776	2488	Vespre.exe	44
PID 2488 wrote to memory of 1776	2488	Vespre.exe	44
PID 2488 wrote to memory of 1888	2488	Vespre.exe	46
PID 2488 wrote to memory of 1888	2488	Vespre.exe	46
PID 2488 wrote to memory of 1888	2488	Vespre.exe	46
PID 2488 wrote to memory of 1888	2488	Vespre.exe	46
PID 2488 wrote to memory of 2544	2488	Vespre.exe	48
PID 2488 wrote to memory of 2544	2488	Vespre.exe	48
PID 2488 wrote to memory of 2544	2488	Vespre.exe	48
PID 2488 wrote to memory of 2544	2488	Vespre.exe	48

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

Processes:

procesosCUI7254178000020150023000.exeVespre.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	procesosCUI7254178000020150023000.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Vespre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Vespre.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\procesosCUI7254178000020150023000.exe
"C:\Users\Admin\AppData\Local\Temp\procesosCUI7254178000020150023000.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\procesosCUI7254178000020150023000.exe
  "C:\Users\Admin\AppData\Local\Temp\procesosCUI7254178000020150023000.exe"
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Modifies security service
  - UAC bypass
  - Windows security bypass
  - Loads dropped DLL
  - Windows security modification
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Modifies Security services
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2728
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "\Microsoft\Windows\System\Dev34\Files\iceTelemetryLogtte" /SC MINUTE /MO 3 /RL HIGHEST /tr "C:\Users\Admin\AppData\Local\Temp\procesosCUI7254178000020150023000.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3052
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /delete /tn "iceTelemetryLogtte" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2428
- - C:\Windows\SysWOW64\vssadmin.exe
    "vssadmin" delete shadows /all /quiet
    3⤵
    - System Location Discovery: System Language Discovery
    - Interacts with shadow copies
    PID:2008
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-MpPreference -verbose
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2440
- - C:\Users\Admin\AppData\Roaming\GPret\Vespre.exe
    "C:\Users\Admin\AppData\Roaming\GPret\Vespre.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3048
  - - C:\Users\Admin\AppData\Roaming\GPret\Vespre.exe
      "C:\Users\Admin\AppData\Roaming\GPret\Vespre.exe"
      4⤵
      Modifies Windows Defender Real-time Protection settings
      Modifies security service
      UAC bypass
      Windows security bypass
      Executes dropped EXE
      Windows security modification
      Adds Run key to start application
      Checks whether UAC is enabled
      Modifies Security services
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:2488
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /create /tn "\Microsoft\Windows\System\Dev34\Files\iceTelemetryLogtte" /SC MINUTE /MO 3 /RL HIGHEST /tr "C:\Users\Admin\AppData\Roaming\GPret\Vespre.exe" /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2468
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /delete /tn "iceTelemetryLogtte" /f
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1776
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        "vssadmin" delete shadows /all /quiet
        5⤵
        System Location Discovery: System Language Discovery
        Interacts with shadow copies
        
        PID:1888
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" Get-MpPreference -verbose
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2544

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Direct Volume Access

T1006

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\GPret\settings.xml

Filesize
137B

MD5
9c6a9e1f626ea85377301ec826c96602

SHA1
0c1336b6074e7b157f94ffdffa8fe8a923fc6efb

SHA256
02e719feaec8cd9a6f72bcbc402fde3ac4f2b7639aa89a37e95644eef758bbd7

SHA512
366db57eecd82242bec53443a0b62480350154ad85bd06e1f8febefa35ed69a9791d32ac67ffac1a5674d7455397de0e73db24307102b842ee2670506a645677

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
2cb12fc48c5e8211940d9d4a06c9065b

SHA1
c445156200d1edd11388bed03a399954cd35a9ec

SHA256
e8f882f0b4814992f1a52cc2b7ff70faf8f94c1df4fa380fa89193f1cff3da61

SHA512
6cca5ebf663e375acbf7b1a292b22343a2365660996956e400bceaea6b188b461619a082ebacf29345d6303e31917c9a967a34c82c21b56bb2b00906a0f713d9

Download Submit
\Users\Admin\AppData\Roaming\GPret\Vespre.exe

Filesize
908KB

MD5
e93703d8357807ba8be42ce5bd71d99b

SHA1
f557b727748f4aa01265b2bc8e46b6201b5f3b7c

SHA256
fa083a970c90e1e17f4aa83ccd7f0bf52b5e0f35eaf4eeda73abdc115d9b55b9

SHA512
b8ad5c57586b70a769d1f9562148de63a3c5835d6a35d3302f33d4d20619254ae5ae6a1703fb26aaa574d96ba15b053359fe0b17059577256a86ebeb53a9b5af

Download Submit
memory/2488-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2524-6-0x00000000004D0000-0x000000000056C000-memory.dmp

Filesize
624KB

Download
memory/2524-25-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2524-1-0x0000000000B20000-0x0000000000C08000-memory.dmp

Filesize
928KB

Download
memory/2524-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-5-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-3-0x0000000000610000-0x000000000062C000-memory.dmp

Filesize
112KB

Download
memory/2524-4-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2728-17-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2728-11-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2728-9-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2728-23-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-24-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-19-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2728-42-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-22-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2728-13-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2728-8-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/3048-41-0x00000000012A0000-0x0000000001388000-memory.dmp

Filesize
928KB

Download