dcrat | b1d9fb66fc77fcad09e98f909994ec891500dffc86c26b7c5d71239b6745776c

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\offfilt\\dllhost.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\offfilt\\dllhost.exe\", \"C:\\MSOCache\\All Users\\Idle.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\offfilt\\dllhost.exe\", \"C:\\MSOCache\\All Users\\Idle.exe\", \"C:\\Windows\\System32\\hdwwiz\\dllhost.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\offfilt\\dllhost.exe\", \"C:\\MSOCache\\All Users\\Idle.exe\", \"C:\\Windows\\System32\\hdwwiz\\dllhost.exe\", \"C:\\Users\\Admin\\Templates\\explorer.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\offfilt\\dllhost.exe\", \"C:\\MSOCache\\All Users\\Idle.exe\", \"C:\\Windows\\System32\\hdwwiz\\dllhost.exe\", \"C:\\Users\\Admin\\Templates\\explorer.exe\", \"C:\\Windows\\System32\\VAN\\lsm.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\offfilt\\dllhost.exe\", \"C:\\MSOCache\\All Users\\Idle.exe\", \"C:\\Windows\\System32\\hdwwiz\\dllhost.exe\", \"C:\\Users\\Admin\\Templates\\explorer.exe\", \"C:\\Windows\\System32\\VAN\\lsm.exe\", \"C:\\Documents and Settings\\WmiPrvSE.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe

Process spawned unexpected child process 6 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	2592	2248	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2812	2248	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1864	2248	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2632	2248	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2616	2248	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	264	2248	schtasks.exe	30

Executes dropped EXE 1 IoCs

pid	Process
1144	dllhost.exe

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\MSOCache\\All Users\\Idle.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\hdwwiz\\dllhost.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Users\\Admin\\Templates\\explorer.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Windows\\System32\\VAN\\lsm.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Windows\\System32\\VAN\\lsm.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\Documents and Settings\\WmiPrvSE.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\offfilt\\dllhost.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\offfilt\\dllhost.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\Documents and Settings\\WmiPrvSE.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Users\\Admin\\Templates\\explorer.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\MSOCache\\All Users\\Idle.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\hdwwiz\\dllhost.exe\""	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\System32\VAN\101b941d020240259ca4912829b53995ad543df6	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
File created	C:\Windows\System32\offfilt\dllhost.exe	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
File opened for modification	C:\Windows\System32\offfilt\dllhost.exe	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
File created	C:\Windows\System32\offfilt\5940a34987c99120d96dace90a3f93f329dcad63	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
File created	C:\Windows\System32\hdwwiz\dllhost.exe	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
File created	C:\Windows\System32\hdwwiz\5940a34987c99120d96dace90a3f93f329dcad63	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
File created	C:\Windows\System32\VAN\lsm.exe	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe

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

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	dllhost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	dllhost.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

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

persistence execution

Scheduled Task

pid	Process
2592	schtasks.exe
2812	schtasks.exe
1864	schtasks.exe
2632	schtasks.exe
2616	schtasks.exe
264	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2028	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe
1144	dllhost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2028	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
Token: SeDebugPrivilege	1144	dllhost.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 1892	2028	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe	37
PID 2028 wrote to memory of 1892	2028	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe	37
PID 2028 wrote to memory of 1892	2028	aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe	37
PID 1892 wrote to memory of 1928	1892	cmd.exe	39
PID 1892 wrote to memory of 1928	1892	cmd.exe	39
PID 1892 wrote to memory of 1928	1892	cmd.exe	39
PID 1892 wrote to memory of 1144	1892	cmd.exe	40
PID 1892 wrote to memory of 1144	1892	cmd.exe	40
PID 1892 wrote to memory of 1144	1892	cmd.exe	40

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\aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe
"C:\Users\Admin\AppData\Local\Temp\aa7a05956ca47e164a10a94d0bdbe01123b84eb01fad5e581e1e72b10d93d5a9.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\94frs3aAPZ.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:1928
- - C:\Windows\System32\hdwwiz\dllhost.exe
    "C:\Windows\System32\hdwwiz\dllhost.exe"
    3⤵
    - Executes dropped EXE
    - Modifies system certificate store
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1144

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\System32\offfilt\dllhost.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 "Idle" /sc ONLOGON /tr "'C:\MSOCache\All Users\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\System32\hdwwiz\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1864

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Users\Admin\Templates\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2632

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\System32\VAN\lsm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Documents and Settings\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

3

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery