quasar | 63bd1085581bf0a8f7c9b01eb5d3a2d551fcc671a3916064891ea85c00d24669

Analysis

max time kernel
118s
max time network
140s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 20:30

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General

Target

comparendo24755693025simitverenlineacgbindata.exe
Size

781KB
MD5

4848c2aa032ded794410ebc729fc18a2
SHA1

ba4200a24bbd4f70594e72414493a350b4c95608
SHA256

63bd1085581bf0a8f7c9b01eb5d3a2d551fcc671a3916064891ea85c00d24669
SHA512

05e9bded510f16f06364ae913f1f494434b1cff4723213dbda1ebdf8da21ffa42764252e129d9e74fe501b5b273884b07213edf81efe24ec14692752f78b714b
SSDEEP

12288:2rD64vvpqDUB/B1idOmEigAqiiqwTFTBK/cOV682wiVZe+0Ks:8DxvuUB7idOmEHNqsxBHOR2rVZAKs

Score

10^/10

quasar evasion persistence ransomware spyware trojan

Malware Config

Signatures

Contains code to disable Windows Defender 7 IoCs

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

resource	yara_rule
behavioral1/memory/2648-13-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2648-14-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2648-17-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2648-19-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2648-21-0x0000000000400000-0x000000000045C000-memory.dmp	disable_win_def
behavioral1/memory/2520-83-0x0000000004320000-0x0000000004360000-memory.dmp	disable_win_def
behavioral1/memory/844-113-0x00000000004A0000-0x00000000004E0000-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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	Vepre.exe

Modifies security service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WinDefend\Start = "4"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\WinDefend\Start = "4"	comparendo24755693025simitverenlineacgbindata.exe

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

Quasar payload 7 IoCs

resource	yara_rule
behavioral1/memory/2648-13-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2648-14-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2648-17-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2648-19-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2648-21-0x0000000000400000-0x000000000045C000-memory.dmp	family_quasar
behavioral1/memory/2520-83-0x0000000004320000-0x0000000004360000-memory.dmp	family_quasar
behavioral1/memory/844-113-0x00000000004A0000-0x00000000004E0000-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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Vepre.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	Vepre.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Executes dropped EXE 3 IoCs

pid	Process
2520	Vepre.exe
2264	Vepre.exe
844	Vepre.exe

Loads dropped DLL 2 IoCs

pid	Process
2648	comparendo24755693025simitverenlineacgbindata.exe
2648	comparendo24755693025simitverenlineacgbindata.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\DisableAntiSpyware = "1"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "1"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\DisableAntiSpyware = "1"	Vepre.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\comparendo24755693025simitverenlineacgbindata.exe\""	comparendo24755693025simitverenlineacgbindata.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\iTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\comparendo24755693025simitverenlineacgbindata.exe\""	comparendo24755693025simitverenlineacgbindata.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gret\\Vepre.exe\""	Vepre.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\iTelemetryLogtte = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gret\\Vepre.exe\""	Vepre.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	comparendo24755693025simitverenlineacgbindata.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Vepre.exe

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

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com
14	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.

flow	ioc
11	ip-api.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2328 set thread context of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2520 set thread context of 844	2520	Vepre.exe	43

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/Job

T1053

pid	Process
1628	schtasks.exe
340	schtasks.exe

Interacts with shadow copies 2 TTPs 2 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
944	vssadmin.exe
3000	vssadmin.exe

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	Vepre.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	Vepre.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	Vepre.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	Vepre.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2712	powershell.exe
2520	Vepre.exe
2520	Vepre.exe
1136	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	comparendo24755693025simitverenlineacgbindata.exe
Token: SeBackupPrivilege	1968	vssvc.exe
Token: SeRestorePrivilege	1968	vssvc.exe
Token: SeAuditPrivilege	1968	vssvc.exe
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	2520	Vepre.exe
Token: SeDebugPrivilege	844	Vepre.exe
Token: SeDebugPrivilege	1136	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
844	Vepre.exe

Suspicious use of WriteProcessMemory 58 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2328 wrote to memory of 2648	2328	comparendo24755693025simitverenlineacgbindata.exe	28
PID 2648 wrote to memory of 1628	2648	comparendo24755693025simitverenlineacgbindata.exe	30
PID 2648 wrote to memory of 1628	2648	comparendo24755693025simitverenlineacgbindata.exe	30
PID 2648 wrote to memory of 1628	2648	comparendo24755693025simitverenlineacgbindata.exe	30
PID 2648 wrote to memory of 1628	2648	comparendo24755693025simitverenlineacgbindata.exe	30
PID 2648 wrote to memory of 1548	2648	comparendo24755693025simitverenlineacgbindata.exe	32
PID 2648 wrote to memory of 1548	2648	comparendo24755693025simitverenlineacgbindata.exe	32
PID 2648 wrote to memory of 1548	2648	comparendo24755693025simitverenlineacgbindata.exe	32
PID 2648 wrote to memory of 1548	2648	comparendo24755693025simitverenlineacgbindata.exe	32
PID 2648 wrote to memory of 944	2648	comparendo24755693025simitverenlineacgbindata.exe	34
PID 2648 wrote to memory of 944	2648	comparendo24755693025simitverenlineacgbindata.exe	34
PID 2648 wrote to memory of 944	2648	comparendo24755693025simitverenlineacgbindata.exe	34
PID 2648 wrote to memory of 944	2648	comparendo24755693025simitverenlineacgbindata.exe	34
PID 2648 wrote to memory of 2712	2648	comparendo24755693025simitverenlineacgbindata.exe	37
PID 2648 wrote to memory of 2712	2648	comparendo24755693025simitverenlineacgbindata.exe	37
PID 2648 wrote to memory of 2712	2648	comparendo24755693025simitverenlineacgbindata.exe	37
PID 2648 wrote to memory of 2712	2648	comparendo24755693025simitverenlineacgbindata.exe	37
PID 2648 wrote to memory of 2520	2648	comparendo24755693025simitverenlineacgbindata.exe	39
PID 2648 wrote to memory of 2520	2648	comparendo24755693025simitverenlineacgbindata.exe	39
PID 2648 wrote to memory of 2520	2648	comparendo24755693025simitverenlineacgbindata.exe	39
PID 2648 wrote to memory of 2520	2648	comparendo24755693025simitverenlineacgbindata.exe	39
PID 2520 wrote to memory of 2264	2520	Vepre.exe	42
PID 2520 wrote to memory of 2264	2520	Vepre.exe	42
PID 2520 wrote to memory of 2264	2520	Vepre.exe	42
PID 2520 wrote to memory of 2264	2520	Vepre.exe	42
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 2520 wrote to memory of 844	2520	Vepre.exe	43
PID 844 wrote to memory of 340	844	Vepre.exe	44
PID 844 wrote to memory of 340	844	Vepre.exe	44
PID 844 wrote to memory of 340	844	Vepre.exe	44
PID 844 wrote to memory of 340	844	Vepre.exe	44
PID 844 wrote to memory of 2504	844	Vepre.exe	46
PID 844 wrote to memory of 2504	844	Vepre.exe	46
PID 844 wrote to memory of 2504	844	Vepre.exe	46
PID 844 wrote to memory of 2504	844	Vepre.exe	46
PID 844 wrote to memory of 3000	844	Vepre.exe	48
PID 844 wrote to memory of 3000	844	Vepre.exe	48
PID 844 wrote to memory of 3000	844	Vepre.exe	48
PID 844 wrote to memory of 3000	844	Vepre.exe	48
PID 844 wrote to memory of 1136	844	Vepre.exe	50
PID 844 wrote to memory of 1136	844	Vepre.exe	50
PID 844 wrote to memory of 1136	844	Vepre.exe	50
PID 844 wrote to memory of 1136	844	Vepre.exe	50

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Vepre.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	comparendo24755693025simitverenlineacgbindata.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	comparendo24755693025simitverenlineacgbindata.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\comparendo24755693025simitverenlineacgbindata.exe
"C:\Users\Admin\AppData\Local\Temp\comparendo24755693025simitverenlineacgbindata.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\comparendo24755693025simitverenlineacgbindata.exe
  "C:\Users\Admin\AppData\Local\Temp\comparendo24755693025simitverenlineacgbindata.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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2648
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "\Microsoft\Windows\System\Dev34\Files\iTelemetryLogtte" /SC MINUTE /MO 3 /RL HIGHEST /tr "C:\Users\Admin\AppData\Local\Temp\comparendo24755693025simitverenlineacgbindata.exe" /f
    3⤵
    - Creates scheduled task(s)
    PID:1628
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /delete /tn "iTelemetryLogtte" /f
    3⤵
    PID:1548
- - C:\Windows\SysWOW64\vssadmin.exe
    "vssadmin" delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:944
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-MpPreference -verbose
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2712
- - C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe
    "C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2520
  - - C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe
      "C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe"
      4⤵
      Executes dropped EXE
      PID:2264
  - - C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe
      "C:\Users\Admin\AppData\Roaming\Gret\Vepre.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 system certificate store
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:844
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /create /tn "\Microsoft\Windows\System\Dev34\Files\iTelemetryLogtte" /SC MINUTE /MO 3 /RL HIGHEST /tr "C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe" /f
        5⤵
        Creates scheduled task(s)
        
        PID:340
    - - C:\Windows\SysWOW64\schtasks.exe
        
        "schtasks" /delete /tn "iTelemetryLogtte" /f
        5⤵
        
        PID:2504
    - - C:\Windows\SysWOW64\vssadmin.exe
        
        "vssadmin" delete shadows /all /quiet
        5⤵
        Interacts with shadow copies
        
        PID:3000
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" Get-MpPreference -verbose
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1136

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

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

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

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarAB04.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
C:\Users\Admin\AppData\Roaming\Gret\Vepre.exe

Filesize
781KB

MD5
4848c2aa032ded794410ebc729fc18a2

SHA1
ba4200a24bbd4f70594e72414493a350b4c95608

SHA256
63bd1085581bf0a8f7c9b01eb5d3a2d551fcc671a3916064891ea85c00d24669

SHA512
05e9bded510f16f06364ae913f1f494434b1cff4723213dbda1ebdf8da21ffa42764252e129d9e74fe501b5b273884b07213edf81efe24ec14692752f78b714b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\VMKCZPUJK3SONQ7LZP3Z.temp

Filesize
7KB

MD5
7aacf714412641a961eae06f3ed10e52

SHA1
6e584221500dbb97b834cf4951f83e5ca8a7fa2c

SHA256
7fe32800c6cdbe4e50e77cd0ef853f91738250d9bd7a849cccd4c3c585da61bd

SHA512
8099a0f7c37585fcaeca49cdd2470162d4a1bd6bf1415f091cd5cc3dd9dab8303d3e53d6867a03420d9b27358c6f8945005c956d2be155cc2488b5e4c4250207

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

Filesize
7KB

MD5
d5848ddfbbc579628bb2b40a0daca56e

SHA1
95f09b4209d1e56163b47dd1f6ac3b777fb06f55

SHA256
33ca98faab3d43a33dd47e56d8b669cf22ac63a023d0dacb9367169e0b7b2940

SHA512
03eebc8d58bf1b619db7f8b7df6c7abc55bb0b634567f74ba724ce20f496b3e5aa80ee051c9146c70c51088fe0a263b1bf4ae666643cc792413045cff5e3d608

Download Submit
memory/844-113-0x00000000004A0000-0x00000000004E0000-memory.dmp

Filesize
256KB

Download
memory/844-90-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/844-99-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/844-112-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/1136-109-0x0000000002BB0000-0x0000000002BF0000-memory.dmp

Filesize
256KB

Download
memory/1136-107-0x0000000002BB0000-0x0000000002BF0000-memory.dmp

Filesize
256KB

Download
memory/1136-106-0x000000006ED30000-0x000000006F2DB000-memory.dmp

Filesize
5.7MB

Download
memory/1136-110-0x000000006ED30000-0x000000006F2DB000-memory.dmp

Filesize
5.7MB

Download
memory/1136-108-0x000000006ED30000-0x000000006F2DB000-memory.dmp

Filesize
5.7MB

Download
memory/2328-3-0x00000000004D0000-0x00000000004EA000-memory.dmp

Filesize
104KB

Download
memory/2328-4-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2328-0-0x0000000000CC0000-0x0000000000D8A000-memory.dmp

Filesize
808KB

Download
memory/2328-7-0x0000000000540000-0x000000000054C000-memory.dmp

Filesize
48KB

Download
memory/2328-22-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2328-6-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/2328-5-0x0000000004D00000-0x0000000004D40000-memory.dmp

Filesize
256KB

Download
memory/2328-1-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2328-8-0x0000000005C30000-0x0000000005CC6000-memory.dmp

Filesize
600KB

Download
memory/2328-2-0x0000000004D00000-0x0000000004D40000-memory.dmp

Filesize
256KB

Download
memory/2520-95-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-84-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-83-0x0000000004320000-0x0000000004360000-memory.dmp

Filesize
256KB

Download
memory/2520-82-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-81-0x0000000000260000-0x000000000032A000-memory.dmp

Filesize
808KB

Download
memory/2648-13-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-19-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-9-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-11-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-14-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-17-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-24-0x0000000000480000-0x00000000004C0000-memory.dmp

Filesize
256KB

Download
memory/2648-23-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-21-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2648-80-0x0000000074740000-0x0000000074E2E000-memory.dmp

Filesize
6.9MB

Download
memory/2712-65-0x000000006EF60000-0x000000006F50B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-66-0x0000000002F90000-0x0000000002FD0000-memory.dmp

Filesize
256KB

Download
memory/2712-67-0x000000006EF60000-0x000000006F50B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-68-0x0000000002F90000-0x0000000002FD0000-memory.dmp

Filesize
256KB

Download
memory/2712-69-0x000000006EF60000-0x000000006F50B000-memory.dmp

Filesize
5.7MB

Download