dcrat | a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 03:58

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General

Target

a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe
Size

2.7MB
MD5

c462d6a698a68d09fd332986ab175aab
SHA1

796cc4391791a9c135b32d3ae24c83b5f6f759d8
SHA256

a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe
SHA512

328dc1e5a620929de513ce5e496c905ace7856af3eb95f9619f0a5e4748f3375220a4327a0807dea30b94e2dc43983c5e5cc21fb45d8522c7dc18ed778a5ba9b
SSDEEP

49152:UB8QdyqETGWTi91dhvdefW1qI8i5ZMFzp2XZXyoW5AJo:+l8GWWzdVdeu1q/iLMFcRyfAJo

Score

10^/10

dcrat discovery execution infostealer persistence rat spyware stealer

Malware Config

Signatures

DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat
Dcrat family
dcrat

Modifies WinLogon for persistence 2 TTPs 6 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Public\\Pictures\\smss.exe\", \"C:\\Program Files (x86)\\Windows Mail\\sysmon.exe\", \"C:\\refmonitor\\SurrogateBrowserruntimeSvc.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Public\\Pictures\\smss.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Public\\Pictures\\smss.exe\", \"C:\\Program Files (x86)\\Windows Mail\\sysmon.exe\""	SurrogateBrowserruntimeSvc.exe

Process spawned unexpected child process 18 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1552	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2504	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2440	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2336	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2592	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2200	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5052	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3472	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5080	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	228	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	180	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3928	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1680	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1000	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4840	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	836	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2368	3636	schtasks.exe	92
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1732	3636	schtasks.exe	92

Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2164	powershell.exe
3496	powershell.exe
3112	powershell.exe
2160	powershell.exe
2488	powershell.exe
1980	powershell.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	SurrogateBrowserruntimeSvc.exe

Executes dropped EXE 2 IoCs

pid	Process
3628	SurrogateBrowserruntimeSvc.exe
3696	dllhost.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 12 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\smss = "\"C:\\Users\\Public\\Pictures\\smss.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\Program Files (x86)\\Windows Mail\\sysmon.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SurrogateBrowserruntimeSvc = "\"C:\\refmonitor\\SurrogateBrowserruntimeSvc.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files (x86)\\Windows Sidebar\\Shared Gadgets\\RuntimeBroker.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Recovery\\WindowsRE\\dllhost.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Users\\Public\\Pictures\\smss.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\WmiPrvSE.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Recovery\\WindowsRE\\dllhost.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\Program Files (x86)\\Windows Mail\\sysmon.exe\""	SurrogateBrowserruntimeSvc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SurrogateBrowserruntimeSvc = "\"C:\\refmonitor\\SurrogateBrowserruntimeSvc.exe\""	SurrogateBrowserruntimeSvc.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\Windows\System32\ip2t47.exe	csc.exe
File created	\??\c:\Windows\System32\CSC80EDA096E7F646C1B023DAF5D1B5FD9.TMP	csc.exe

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Windows Mail\sysmon.exe	SurrogateBrowserruntimeSvc.exe
File created	C:\Program Files (x86)\Windows Mail\121e5b5079f7c0	SurrogateBrowserruntimeSvc.exe
File created	C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\RuntimeBroker.exe	SurrogateBrowserruntimeSvc.exe
File created	C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\9e8d7a4ca61bd9	SurrogateBrowserruntimeSvc.exe
File created	C:\Program Files\Windows Security\BrowserCore\en-US\WmiPrvSE.exe	SurrogateBrowserruntimeSvc.exe
File created	C:\Program Files\Windows Security\BrowserCore\en-US\24dbde2999530e	SurrogateBrowserruntimeSvc.exe
File created	C:\Program Files (x86)\Windows Mail\sysmon.exe	SurrogateBrowserruntimeSvc.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\LanguageOverlayCache\cmd.exe	SurrogateBrowserruntimeSvc.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	SurrogateBrowserruntimeSvc.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1000	schtasks.exe
1732	schtasks.exe
2504	schtasks.exe
5052	schtasks.exe
228	schtasks.exe
3928	schtasks.exe
1680	schtasks.exe
4840	schtasks.exe
2440	schtasks.exe
2336	schtasks.exe
2592	schtasks.exe
3472	schtasks.exe
180	schtasks.exe
2200	schtasks.exe
5080	schtasks.exe
836	schtasks.exe
1552	schtasks.exe
2368	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe
3628	SurrogateBrowserruntimeSvc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3696	dllhost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3628	SurrogateBrowserruntimeSvc.exe
Token: SeDebugPrivilege	2164	powershell.exe
Token: SeDebugPrivilege	3496	powershell.exe
Token: SeDebugPrivilege	1980	powershell.exe
Token: SeDebugPrivilege	2488	powershell.exe
Token: SeDebugPrivilege	3112	powershell.exe
Token: SeDebugPrivilege	2160	powershell.exe
Token: SeDebugPrivilege	3696	dllhost.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 4836	2988	a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe	83
PID 2988 wrote to memory of 4836	2988	a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe	83
PID 2988 wrote to memory of 4836	2988	a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe	83
PID 4836 wrote to memory of 1848	4836	WScript.exe	87
PID 4836 wrote to memory of 1848	4836	WScript.exe	87
PID 4836 wrote to memory of 1848	4836	WScript.exe	87
PID 1848 wrote to memory of 3628	1848	cmd.exe	89
PID 1848 wrote to memory of 3628	1848	cmd.exe	89
PID 3628 wrote to memory of 4460	3628	SurrogateBrowserruntimeSvc.exe	96
PID 3628 wrote to memory of 4460	3628	SurrogateBrowserruntimeSvc.exe	96
PID 4460 wrote to memory of 2236	4460	csc.exe	98
PID 4460 wrote to memory of 2236	4460	csc.exe	98
PID 3628 wrote to memory of 2160	3628	SurrogateBrowserruntimeSvc.exe	114
PID 3628 wrote to memory of 2160	3628	SurrogateBrowserruntimeSvc.exe	114
PID 3628 wrote to memory of 3112	3628	SurrogateBrowserruntimeSvc.exe	115
PID 3628 wrote to memory of 3112	3628	SurrogateBrowserruntimeSvc.exe	115
PID 3628 wrote to memory of 3496	3628	SurrogateBrowserruntimeSvc.exe	116
PID 3628 wrote to memory of 3496	3628	SurrogateBrowserruntimeSvc.exe	116
PID 3628 wrote to memory of 2164	3628	SurrogateBrowserruntimeSvc.exe	117
PID 3628 wrote to memory of 2164	3628	SurrogateBrowserruntimeSvc.exe	117
PID 3628 wrote to memory of 1980	3628	SurrogateBrowserruntimeSvc.exe	118
PID 3628 wrote to memory of 1980	3628	SurrogateBrowserruntimeSvc.exe	118
PID 3628 wrote to memory of 2488	3628	SurrogateBrowserruntimeSvc.exe	119
PID 3628 wrote to memory of 2488	3628	SurrogateBrowserruntimeSvc.exe	119
PID 3628 wrote to memory of 3320	3628	SurrogateBrowserruntimeSvc.exe	125
PID 3628 wrote to memory of 3320	3628	SurrogateBrowserruntimeSvc.exe	125
PID 3320 wrote to memory of 3232	3320	cmd.exe	128
PID 3320 wrote to memory of 3232	3320	cmd.exe	128
PID 3320 wrote to memory of 3860	3320	cmd.exe	130
PID 3320 wrote to memory of 3860	3320	cmd.exe	130
PID 3320 wrote to memory of 3696	3320	cmd.exe	136
PID 3320 wrote to memory of 3696	3320	cmd.exe	136

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe
"C:\Users\Admin\AppData\Local\Temp\a07573c22a19a40f9a01422a93bd1c125909857895e9511d59949ba0e5ceb3fe.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\refmonitor\IpbZ1VvTcHrONcTKJANl9zG.vbe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\refmonitor\L8eiZJU31CCxC9L.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1848
  - - C:\refmonitor\SurrogateBrowserruntimeSvc.exe
      "C:\refmonitor/SurrogateBrowserruntimeSvc.exe"
      4⤵
      Modifies WinLogon for persistence
      Checks computer location settings
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Program Files directory
      Drops file in Windows directory
      Modifies registry class
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3628
    - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\shha111n\shha111n.cmdline"
        5⤵
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:4460
      - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESF0B9.tmp" "c:\Windows\System32\CSC80EDA096E7F646C1B023DAF5D1B5FD9.TMP"
        6⤵
        
        PID:2236
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Security\BrowserCore\en-US\WmiPrvSE.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of AdjustPrivilegeToken
        
        PID:2160
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\RuntimeBroker.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of AdjustPrivilegeToken
        
        PID:3112
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\dllhost.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of AdjustPrivilegeToken
        
        PID:3496
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Public\Pictures\smss.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of AdjustPrivilegeToken
        
        PID:2164
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Mail\sysmon.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of AdjustPrivilegeToken
        
        PID:1980
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell" -Command Add-MpPreference -ExclusionPath 'C:\refmonitor\SurrogateBrowserruntimeSvc.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of AdjustPrivilegeToken
        
        PID:2488
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\LZFI0HnStu.bat"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3320
      - C:\Windows\system32\chcp.com
        
        chcp 65001
        6⤵
        
        PID:3232
      - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        6⤵
        
        PID:3860
      - C:\Recovery\WindowsRE\dllhost.exe
        
        "C:\Recovery\WindowsRE\dllhost.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        
        PID:3696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\WmiPrvSE.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1552

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2504

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2440

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2336

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2592

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2200

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5052

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3472

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5080

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Users\Public\Pictures\smss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:228

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Users\Public\Pictures\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:180

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Pictures\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3928

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Mail\sysmon.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1680

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1000

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Mail\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4840

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SurrogateBrowserruntimeSvcS" /sc MINUTE /mo 14 /tr "'C:\refmonitor\SurrogateBrowserruntimeSvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:836

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SurrogateBrowserruntimeSvc" /sc ONLOGON /tr "'C:\refmonitor\SurrogateBrowserruntimeSvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2368

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SurrogateBrowserruntimeSvcS" /sc MINUTE /mo 7 /tr "'C:\refmonitor\SurrogateBrowserruntimeSvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
291B

MD5
b92b02ca5f2336eef597c8a49d6d6466

SHA1
5c0c95fa6302e2e552b4081d4d6d95b619fbdac0

SHA256
ae6adcaac78c627da11abb6ecb1ae0e7e4c94ec294e949e56ab3c56b757a92ef

SHA512
35723284ce098fee0edf523de5df43a8330bad26d224c153e5d409cc945b15a948a370d29fcfd0a95a46ad42f69868b156794aec04ddd95c5e60bf471f7f5715

Download Submit
C:\Users\Admin\AppData\Local\Temp\LZFI0HnStu.bat

Filesize
209B

MD5
8e61fc4e188c789d1f679e9e43e2d72a

SHA1
c3577900d3256be7af0910218be61e7347af66f4

SHA256
372ff4181cfcb7a0fbfde82bb430b08ada7494651805841a0d27339fa8861cae

SHA512
9373d6be22bfdc137fb07522499ae17d8ecd9591deca594b1e00402c7fd7e741a75417a89931b3c4a8b24c29b03ffce909a79fce5b1b8a55267e58604a2c35ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESF0B9.tmp

Filesize
1KB

MD5
7a0a06d6fb8632e53bb9a70ad22ca2c8

SHA1
53b7d81ee5a98ddfa0c5ed224553cef550f6d51a

SHA256
8b1f3364b12acca60f39b8f4af50b555dedb1c9a16bc2f0bdb78c745e8e4d073

SHA512
eb4fc97d1032096956d52947afdcd351bd8271eaa3a7ca1c6912a76b90c4655bc5bceb8300fa8033a2174237d21e62866b6ab63beaa01e1ca017878e09e1985d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3fj4dxrz.jex.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\refmonitor\IpbZ1VvTcHrONcTKJANl9zG.vbe

Filesize
203B

MD5
7ab2590560976f9db5936c16c769e33e

SHA1
879f7a609f21c2db8f985a2be7328708225ecaac

SHA256
582d8eef207124fa14ea2bee1733ac8eaada70a9dc2e5a26481136deaff10fde

SHA512
2cae748998d21e4e217b652c5cef6a3ba206cf845bba9d85507fea99ee334093318b248680819b36745c1ba586e0d4115a225ef8bc17211d61c2314fbcdd92f4

Download Submit
C:\refmonitor\L8eiZJU31CCxC9L.bat

Filesize
85B

MD5
550369819d3a809d6b71c88c2ac730dd

SHA1
dc2349d2365842b97c43a20922a500bc5402c484

SHA256
359617de9c982df1d89e52bd9be840bb6618850d46380d4183ada239c8435e32

SHA512
aac7ccd06cf0f49d651d1fbc276031bb1b431feb260098cbb69fb54c3993e15e8f6f80ff8c0031048f34e33276800286f2943535ca34f33c0944380a3b960921

Download Submit
C:\refmonitor\SurrogateBrowserruntimeSvc.exe

Filesize
2.4MB

MD5
13d5df2ab2ead9bc68445f92b137eda6

SHA1
0411a2f0bae6108252130feb85e20cc1cf6b5d07

SHA256
80b56ea271aee36a7631af049b4a07141163f8d79ef220af176dc661acad8f54

SHA512
b58d4ec4689de7d0229c56161163e2174004dd217c2a3d33985400d8907506a36b0f769d6ba196327e00577879e7e0c8442ff6e29cbae4110c231ededde45b62

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\shha111n\shha111n.0.cs

Filesize
396B

MD5
90d017fec654a57de0c618edf30adf3e

SHA1
c00efe70a0631b17beae7d66e473366a7aaf2455

SHA256
0b1942cd067363d0f70cce0b69ca54e4d6b445752b8fe42a795b8a43d12a8052

SHA512
d2e2398c7118ef8b466c0b0dec1a8bc9fd01ab1b0d973318e0f996e6264bfe7a50a3392275b21f515e7178f303ae266fea0ff79456d9eca0367b49d2522e2dd9

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\shha111n\shha111n.cmdline

Filesize
235B

MD5
59bb6c10d548b0fda72a063f997ec175

SHA1
716aec8c0ac77b7e7d16018708750291d9f4ae10

SHA256
f56000900afbf99676bbc4d6f94e1383bbe469b3cd1d7fd2c74804475c8967b2

SHA512
1baccd6a513995d1bc363066c5e97a2cbf4529ef09810d9e84bfa57ab5ebc0d14100dc8faf60f87d7f9f45f43a35baa96936ffdf0573ce73b5b687d1a518ab97

Download Submit
\??\c:\Windows\System32\CSC80EDA096E7F646C1B023DAF5D1B5FD9.TMP

Filesize
1KB

MD5
034b083b6729ade0b138a24cbdd66c6d

SHA1
299c5a9dd91498cfc4226a5fe6d52ea633c2d148

SHA256
8e3aa7a68c0bfea6cae11fe40e79aa1483bc2e43c4c3fd11fcebca1f7bcea0d2

SHA512
43f68ec3211f2d1eb3a095713b3988a5b45a6fb03136876431edd3b25b628f904079557cbb60d0107c0444551db274c8e6817d63a543e8a7e390206af64d1cc3

Download Submit
memory/2164-67-0x000001EB4A0A0000-0x000001EB4A0C2000-memory.dmp

Filesize
136KB

Download
memory/3628-17-0x000000001BA00000-0x000000001BA1C000-memory.dmp

Filesize
112KB

Download
memory/3628-30-0x000000001B9E0000-0x000000001B9EC000-memory.dmp

Filesize
48KB

Download
memory/3628-28-0x000000001BA60000-0x000000001BA78000-memory.dmp

Filesize
96KB

Download
memory/3628-26-0x00000000017C0000-0x00000000017D0000-memory.dmp

Filesize
64KB

Download
memory/3628-24-0x000000001C050000-0x000000001C0AA000-memory.dmp

Filesize
360KB

Download
memory/3628-22-0x000000001BA40000-0x000000001BA56000-memory.dmp

Filesize
88KB

Download
memory/3628-96-0x000000001C6F0000-0x000000001C899000-memory.dmp

Filesize
1.7MB

Download
memory/3628-20-0x000000001BA20000-0x000000001BA38000-memory.dmp

Filesize
96KB

Download
memory/3628-18-0x000000001BA90000-0x000000001BAE0000-memory.dmp

Filesize
320KB

Download
memory/3628-15-0x00000000017B0000-0x00000000017BE000-memory.dmp

Filesize
56KB

Download
memory/3628-13-0x0000000000C50000-0x0000000000EC2000-memory.dmp

Filesize
2.4MB

Download
memory/3628-12-0x00007FFD0B323000-0x00007FFD0B325000-memory.dmp

Filesize
8KB

Download