dcrat | b4b47571926c6fb637d7ca1f9ce6e171ab98f8d63f9efb89954ca9aa10c8260b

Resubmissions

02-02-2025 06:58

250202-hrxqxasncn 10

02-02-2025 06:26

250202-g7j93szkbt 10

Analysis

max time kernel
95s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2025 06:26

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General

Target

DCRatBuild.exe
Size

2.2MB
MD5

f961009433ca2f3a302b6a7236bc7ef4
SHA1

de9c950643db1fd43fd37d1f01db5d186a492244
SHA256

b4b47571926c6fb637d7ca1f9ce6e171ab98f8d63f9efb89954ca9aa10c8260b
SHA512

3637e15257a813ed87ad05ebc4fc28550c8440afe06e07205309c69f615e03f0cc7e318357fabe7951c729c56d079e188aad4b10e1e4feabf010e11e729875a1
SSDEEP

49152:UbA30EQtOTsSj5tM1xb5fO7jR1SaZRX62:UbFCBjHgx1fsjR1ne2

Score

10^/10

dcrat defense_evasion discovery infostealer rat trojan

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

Process spawned unexpected child process 48 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	3768	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1996	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	208	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3060	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3664	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4320	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4520	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2908	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4004	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4916	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1340	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1164	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4060	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2852	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	920	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3684	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2516	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1728	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1592	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2384	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2140	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3008	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2872	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	180	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3992	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4048	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2708	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3488	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4656	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2768	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2728	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	536	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3560	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4188	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1156	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2224	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1552	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1576	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1796	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3916	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	972	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4948	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2776	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2696	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2252	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4964	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1584	3612	schtasks.exe	90
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2652	3612	schtasks.exe	90

UAC bypass 3 TTPs 6 IoCs

defense_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\PromptOnSecureDesktop = "0"	taskhostw.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	BlockCrtdll.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	BlockCrtdll.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	BlockCrtdll.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	taskhostw.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	taskhostw.exe

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/files/0x000a000000023b1d-10.dat	dcrat
behavioral2/memory/2240-13-0x0000000000E70000-0x000000000105A000-memory.dmp	dcrat

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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	DCRatBuild.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	BlockCrtdll.exe

Executes dropped EXE 2 IoCs

pid	Process
2240	BlockCrtdll.exe
3656	taskhostw.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

defense_evasion trojan

System Information Discovery

T1082

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

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\Idle.exe	BlockCrtdll.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\BlockCrtdll.exe	BlockCrtdll.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\a4989c7c738b89	BlockCrtdll.exe
File created	C:\Program Files\Windows Portable Devices\explorer.exe	BlockCrtdll.exe
File created	C:\Program Files\Windows Portable Devices\7a0fd90576e088	BlockCrtdll.exe
File created	C:\Program Files (x86)\Reference Assemblies\dllhost.exe	BlockCrtdll.exe
File created	C:\Program Files (x86)\Reference Assemblies\5940a34987c991	BlockCrtdll.exe
File created	C:\Program Files\Java\jre-1.8\6ccacd8608530f	BlockCrtdll.exe
File created	C:\Program Files\Java\jre-1.8\lib\amd64\csrss.exe	BlockCrtdll.exe
File created	C:\Program Files\Java\jre-1.8\lib\amd64\886983d96e3d3e	BlockCrtdll.exe
File created	C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\SearchApp.exe	BlockCrtdll.exe
File created	C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\38384e6a620884	BlockCrtdll.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\rescache\_merged\2928961003\OfficeClickToRun.exe	BlockCrtdll.exe
File created	C:\Windows\en-US\fontdrvhost.exe	BlockCrtdll.exe
File opened for modification	C:\Windows\en-US\fontdrvhost.exe	BlockCrtdll.exe
File created	C:\Windows\en-US\5b884080fd4f94	BlockCrtdll.exe
File created	C:\Windows\IdentityCRL\production\taskhostw.exe	BlockCrtdll.exe
File created	C:\Windows\IdentityCRL\production\ea9f0e6c9e2dcd	BlockCrtdll.exe

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DCRatBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2436272344-4274332273-444425594-1000_Classes\Local Settings	DCRatBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-2436272344-4274332273-444425594-1000_Classes\Local Settings	BlockCrtdll.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 48 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3992	schtasks.exe
3560	schtasks.exe
3916	schtasks.exe
972	schtasks.exe
4004	schtasks.exe
4916	schtasks.exe
1340	schtasks.exe
180	schtasks.exe
4964	schtasks.exe
1576	schtasks.exe
2776	schtasks.exe
2696	schtasks.exe
4060	schtasks.exe
2384	schtasks.exe
4048	schtasks.exe
1156	schtasks.exe
2708	schtasks.exe
4656	schtasks.exe
2768	schtasks.exe
4948	schtasks.exe
536	schtasks.exe
2652	schtasks.exe
208	schtasks.exe
3664	schtasks.exe
920	schtasks.exe
2140	schtasks.exe
4188	schtasks.exe
2252	schtasks.exe
2852	schtasks.exe
2516	schtasks.exe
2872	schtasks.exe
3488	schtasks.exe
3768	schtasks.exe
1996	schtasks.exe
4320	schtasks.exe
1592	schtasks.exe
2728	schtasks.exe
1552	schtasks.exe
1796	schtasks.exe
4520	schtasks.exe
2908	schtasks.exe
1164	schtasks.exe
1728	schtasks.exe
1584	schtasks.exe
3060	schtasks.exe
3684	schtasks.exe
3008	schtasks.exe
2224	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
2240	BlockCrtdll.exe
3656	taskhostw.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	BlockCrtdll.exe
Token: SeDebugPrivilege	3656	taskhostw.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 4660	2460	DCRatBuild.exe	86
PID 2460 wrote to memory of 4660	2460	DCRatBuild.exe	86
PID 2460 wrote to memory of 4660	2460	DCRatBuild.exe	86
PID 4660 wrote to memory of 3224	4660	WScript.exe	87
PID 4660 wrote to memory of 3224	4660	WScript.exe	87
PID 4660 wrote to memory of 3224	4660	WScript.exe	87
PID 3224 wrote to memory of 2240	3224	cmd.exe	89
PID 3224 wrote to memory of 2240	3224	cmd.exe	89
PID 2240 wrote to memory of 4260	2240	BlockCrtdll.exe	139
PID 2240 wrote to memory of 4260	2240	BlockCrtdll.exe	139
PID 4260 wrote to memory of 448	4260	cmd.exe	141
PID 4260 wrote to memory of 448	4260	cmd.exe	141
PID 4260 wrote to memory of 3656	4260	cmd.exe	142
PID 4260 wrote to memory of 3656	4260	cmd.exe	142

System policy modification 1 TTPs 6 IoCs

defense_evasion

Modify Registry

T1112

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

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\DCRatBuild.exe
"C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\serverComponentDllcommon\bx6BMmKgSYwa72gSXp87543q080.vbe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\serverComponentDllcommon\zRrwLBfNMV0sSxintCMs2hsAWOJU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3224
  - - C:\serverComponentDllcommon\BlockCrtdll.exe
      "C:\serverComponentDllcommon\BlockCrtdll.exe"
      4⤵
      UAC bypass
      Checks computer location settings
      Executes dropped EXE
      Checks whether UAC is enabled
      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
      System policy modification
      PID:2240
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\TfcphYVXz9.bat"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4260
      - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        6⤵
        
        PID:448
      - C:\Windows\IdentityCRL\production\taskhostw.exe
        
        "C:\Windows\IdentityCRL\production\taskhostw.exe"
        6⤵
        UAC bypass
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:3656

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 7 /tr "'C:\Windows\en-US\fontdrvhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3768

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\en-US\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1996

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 5 /tr "'C:\Windows\en-US\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:208

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 8 /tr "'C:\serverComponentDllcommon\upfc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\serverComponentDllcommon\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3664

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 12 /tr "'C:\serverComponentDllcommon\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4320

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Portable Devices\explorer.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4520

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2908

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Portable Devices\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4004

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\Windows\IdentityCRL\production\taskhostw.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4916

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Windows\IdentityCRL\production\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1340

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\Windows\IdentityCRL\production\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1164

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Reference Assemblies\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2852

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Reference Assemblies\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:920

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Program Files\Java\jre-1.8\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3684

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Java\jre-1.8\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2516

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files\Java\jre-1.8\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1728

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1592

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2384

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2140

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "BlockCrtdllB" /sc MINUTE /mo 9 /tr "'C:\Program Files\Reference Assemblies\Microsoft\BlockCrtdll.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3008

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "BlockCrtdll" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\BlockCrtdll.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "BlockCrtdllB" /sc MINUTE /mo 5 /tr "'C:\Program Files\Reference Assemblies\Microsoft\BlockCrtdll.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 "sysmons" /sc MINUTE /mo 9 /tr "'C:\serverComponentDllcommon\sysmon.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3992

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\serverComponentDllcommon\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4048

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 12 /tr "'C:\serverComponentDllcommon\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2708

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Java\jre-1.8\lib\amd64\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3488

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Java\jre-1.8\lib\amd64\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4656

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files\Java\jre-1.8\lib\amd64\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2768

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\SearchApp.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2728

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:536

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3560

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4188

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1156

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2224

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 11 /tr "'C:\serverComponentDllcommon\sihost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1552

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\serverComponentDllcommon\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1576

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 7 /tr "'C:\serverComponentDllcommon\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1796

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 12 /tr "'C:\serverComponentDllcommon\sysmon.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3916

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\serverComponentDllcommon\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:972

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 6 /tr "'C:\serverComponentDllcommon\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4948

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\serverComponentDllcommon\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2776

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\serverComponentDllcommon\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\serverComponentDllcommon\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2252

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\serverComponentDllcommon\OfficeClickToRun.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4964

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\serverComponentDllcommon\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1584

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 12 /tr "'C:\serverComponentDllcommon\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\TfcphYVXz9.bat

Filesize
212B

MD5
39107281b05252a842b8bdf204e5ebcf

SHA1
a9f7ee590764d4f63d47f6304197a7a75aaee865

SHA256
cb32f5b97609b7919dc117d7c0b6c8d16614134ec6001781a6ddb4f3a2e28163

SHA512
ff8f9f3542196b5899033fbf4f180ca68e5ddbd319ea08d35794481cc3209020cfe1023b7198eab1a32f75b928914fccbe12909ef297839c7718b47b4ef93575

Download Submit
C:\serverComponentDllcommon\BlockCrtdll.exe

Filesize
1.9MB

MD5
496e5e387972013c1cb840b3c950619a

SHA1
590ebfbeb19abe6209ce0fd443a4ddbf99bb6b06

SHA256
65c9c72f636b657567a6c266530e32fced0bd925862a8cb1a36f17ed2e5fcab9

SHA512
627852c5b9c5623d63af7e328350a12390df8dac076df5eb68e9d062af6e4b722b454f84385084f2010853c2af0a78b1ae7eab5a04e75a522308bc5d196ca064

Download Submit
C:\serverComponentDllcommon\bx6BMmKgSYwa72gSXp87543q080.vbe

Filesize
229B

MD5
d88322aff4ad78498de6b2f94849650b

SHA1
083dad97a0c0fb49bff2aafb71b3c2f1649b7874

SHA256
8ef333818cc91032a286af156d19dc2940e23349b59823fd321899b45411dff7

SHA512
8017b8704665def6102dc1a1ba09d6d2786ca3810160df40da980a839eff518d714bdc71677ffc3102ea60b51e034c134d78dec81d4ea69dd7ef2929055bddd7

Download Submit
C:\serverComponentDllcommon\zRrwLBfNMV0sSxintCMs2hsAWOJU.bat

Filesize
45B

MD5
f1e21d43b8f7088bb04b918c5d374889

SHA1
3af9d153963b57f317b38d543e2d49d7e5f2b024

SHA256
0734a22e43a714e98295ec0cf6fa0b801dc7634b206533a219401a9f87444fc6

SHA512
8ae8c28afaa70cbbd5c0c7395855299402552c707b3c0e1ab1cf43adb643175ac5f69063a1a8433ab2db3eae2e6c992164478d8229e35814e41f116d797f3c3b

Download Submit
memory/2240-12-0x00007FFFDBC43000-0x00007FFFDBC45000-memory.dmp

Filesize
8KB

Download
memory/2240-13-0x0000000000E70000-0x000000000105A000-memory.dmp

Filesize
1.9MB

Download
memory/2240-14-0x0000000003170000-0x000000000317A000-memory.dmp

Filesize
40KB

Download
memory/2240-15-0x0000000003180000-0x00000000031D6000-memory.dmp

Filesize
344KB

Download
memory/2240-16-0x00000000031D0000-0x00000000031DC000-memory.dmp

Filesize
48KB

Download