dcrat | 0f2c744c9325bd8c8874af73a82add70c6206e047afef3be951fb6ebfe8c5576

General

Target

235d34c77d2170ce99f718267547a1b1.exe
Size

2.8MB
MD5

235d34c77d2170ce99f718267547a1b1
SHA1

d8802d67af489d34023046f84a8c6eeae7c9afd8
SHA256

0f2c744c9325bd8c8874af73a82add70c6206e047afef3be951fb6ebfe8c5576
SHA512

7c292e38783e56f63999cfe88a43758353de33622a6ff937af5e6252639530ee21ad036b0795e02ddb817e8d29c7fb2c8514f76627ea168fc274df9a21e8178e
SSDEEP

49152:ubA3jvN1HwTxELJKORSmFPANX0M2EQX2YnbcqT9KD2EB7F1QetkmL6Hs44F+I6:ubaN1HwdEwmxGDDaYqTYDZ7ntkBHs44o

Score

10^/10

dcrat discovery infostealer persistence rat

Malware Config

Signatures

DcRat 25 IoCs

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

rat infostealer dcrat

description	ioc	pid	Process
		1600	schtasks.exe
		2732	schtasks.exe
		1964	schtasks.exe
		1452	schtasks.exe
		1356	schtasks.exe
		2944	schtasks.exe
		2204	schtasks.exe
		1684	schtasks.exe
		1860	schtasks.exe
		1640	schtasks.exe
		2816	schtasks.exe
		2576	schtasks.exe
		1472	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language		235d34c77d2170ce99f718267547a1b1.exe
		2812	schtasks.exe
		2452	schtasks.exe
		2176	schtasks.exe
		2612	schtasks.exe
		2012	schtasks.exe
		1748	schtasks.exe
		2908	schtasks.exe
		2172	schtasks.exe
		572	schtasks.exe
		688	schtasks.exe
		2548	schtasks.exe

Modifies WinLogon for persistence 2 TTPs 8 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:\\surrogatewinhostsvc\\csrss.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\", \"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\", \"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\", \"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\", \"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\", \"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\", \"C:\\MSOCache\\All Users\\{90140000-0117-0409-0000-0000000FF1CE}-C\\Access.en-us\\dwm.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\", \"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\", \"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\", \"C:\\MSOCache\\All Users\\{90140000-0117-0409-0000-0000000FF1CE}-C\\Access.en-us\\dwm.exe\", \"C:\\Program Files\\MSBuild\\Microsoft\\Windows Workflow Foundation\\v3.5\\explorer.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\", \"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\", \"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\", \"C:\\MSOCache\\All Users\\{90140000-0117-0409-0000-0000000FF1CE}-C\\Access.en-us\\dwm.exe\", \"C:\\Program Files\\MSBuild\\Microsoft\\Windows Workflow Foundation\\v3.5\\explorer.exe\", \"C:\\Program Files\\Microsoft Office\\Office14\\1033\\cmd.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\surrogatewinhostsvc\\csrss.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\", \"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\", \"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\", \"C:\\MSOCache\\All Users\\{90140000-0117-0409-0000-0000000FF1CE}-C\\Access.en-us\\dwm.exe\", \"C:\\Program Files\\MSBuild\\Microsoft\\Windows Workflow Foundation\\v3.5\\explorer.exe\", \"C:\\Program Files\\Microsoft Office\\Office14\\1033\\cmd.exe\", \"C:\\Users\\Public\\lsm.exe\""	blockportserver.exe

Process spawned unexpected child process 24 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	2812	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2576	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1684	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2548	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2612	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	688	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	572	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1600	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2816	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2452	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2012	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1860	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2732	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1964	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1640	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1452	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1356	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1472	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1748	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2944	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2908	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2204	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2172	2440	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2176	2440	schtasks.exe	35

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/files/0x0007000000016c6a-12.dat	dcrat
behavioral1/memory/3036-13-0x0000000000800000-0x0000000000A80000-memory.dmp	dcrat
behavioral1/memory/2144-46-0x0000000000E80000-0x0000000001100000-memory.dmp	dcrat

Executes dropped EXE 2 IoCs

pid	Process
3036	blockportserver.exe
2144	csrss.exe

Loads dropped DLL 2 IoCs

pid	Process
1360	cmd.exe
1360	cmd.exe

Adds Run key to start application 2 TTPs 16 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Users\\Public\\lsm.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\surrogatewinhostsvc\\csrss.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\audiodg = "\"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\surrogatewinhostsvc\\csrss.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\Windows\\PCHEALTH\\ERRORREP\\QHEADLES\\cmd.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\Program Files\\Microsoft Office\\Office14\\1033\\cmd.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\Program Files\\Microsoft Office\\Office14\\1033\\cmd.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Users\\Public\\lsm.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\audiodg = "\"C:\\Recovery\\b2a802a2-3b12-11ef-8991-d2f1755c8afd\\audiodg.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\MSOCache\\All Users\\{90140000-0117-0409-0000-0000000FF1CE}-C\\Access.en-us\\dwm.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Program Files\\MSBuild\\Microsoft\\Windows Workflow Foundation\\v3.5\\explorer.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Program Files\\MSBuild\\Microsoft\\Windows Workflow Foundation\\v3.5\\explorer.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows NT\\Accessories\\en-US\\csrss.exe\""	blockportserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\MSOCache\\All Users\\{90140000-0117-0409-0000-0000000FF1CE}-C\\Access.en-us\\dwm.exe\""	blockportserver.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files\Windows NT\Accessories\en-US\csrss.exe	blockportserver.exe
File created	C:\Program Files\Windows NT\Accessories\en-US\886983d96e3d3e	blockportserver.exe
File created	C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\explorer.exe	blockportserver.exe
File created	C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\7a0fd90576e088	blockportserver.exe
File created	C:\Program Files\Microsoft Office\Office14\1033\cmd.exe	blockportserver.exe
File created	C:\Program Files\Microsoft Office\Office14\1033\ebf1f9fa8afd6d	blockportserver.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\PCHEALTH\ERRORREP\QHEADLES\ebf1f9fa8afd6d	blockportserver.exe
File created	C:\Windows\PCHEALTH\ERRORREP\QHEADLES\cmd.exe	blockportserver.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	235d34c77d2170ce99f718267547a1b1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 24 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1356	schtasks.exe
2908	schtasks.exe
2204	schtasks.exe
2172	schtasks.exe
2176	schtasks.exe
2612	schtasks.exe
688	schtasks.exe
1640	schtasks.exe
1964	schtasks.exe
1452	schtasks.exe
1748	schtasks.exe
2944	schtasks.exe
2548	schtasks.exe
2452	schtasks.exe
2012	schtasks.exe
1600	schtasks.exe
1860	schtasks.exe
2732	schtasks.exe
2812	schtasks.exe
2576	schtasks.exe
1684	schtasks.exe
572	schtasks.exe
2816	schtasks.exe
1472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3036	blockportserver.exe
2144	csrss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	blockportserver.exe
Token: SeDebugPrivilege	2144	csrss.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2332	2500	235d34c77d2170ce99f718267547a1b1.exe	31
PID 2500 wrote to memory of 2332	2500	235d34c77d2170ce99f718267547a1b1.exe	31
PID 2500 wrote to memory of 2332	2500	235d34c77d2170ce99f718267547a1b1.exe	31
PID 2500 wrote to memory of 2332	2500	235d34c77d2170ce99f718267547a1b1.exe	31
PID 2332 wrote to memory of 1360	2332	WScript.exe	32
PID 2332 wrote to memory of 1360	2332	WScript.exe	32
PID 2332 wrote to memory of 1360	2332	WScript.exe	32
PID 2332 wrote to memory of 1360	2332	WScript.exe	32
PID 1360 wrote to memory of 3036	1360	cmd.exe	34
PID 1360 wrote to memory of 3036	1360	cmd.exe	34
PID 1360 wrote to memory of 3036	1360	cmd.exe	34
PID 1360 wrote to memory of 3036	1360	cmd.exe	34
PID 3036 wrote to memory of 2144	3036	blockportserver.exe	60
PID 3036 wrote to memory of 2144	3036	blockportserver.exe	60
PID 3036 wrote to memory of 2144	3036	blockportserver.exe	60

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\235d34c77d2170ce99f718267547a1b1.exe
"C:\Users\Admin\AppData\Local\Temp\235d34c77d2170ce99f718267547a1b1.exe"
1⤵
- DcRat
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\surrogatewinhostsvc\nu5MrHdU8wRPsPg.vbe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\surrogatewinhostsvc\wBJ3JMG47SmseQ.bat" "
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1360
  - - C:\surrogatewinhostsvc\blockportserver.exe
      "C:\surrogatewinhostsvc\blockportserver.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Program Files directory
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3036
    - - C:\Program Files\Windows NT\Accessories\en-US\csrss.exe
        
        "C:\Program Files\Windows NT\Accessories\en-US\csrss.exe"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2144

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\surrogatewinhostsvc\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\surrogatewinhostsvc\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2576

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\surrogatewinhostsvc\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1684

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows NT\Accessories\en-US\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2548

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\en-US\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2612

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows NT\Accessories\en-US\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:688

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 9 /tr "'C:\Windows\PCHEALTH\ERRORREP\QHEADLES\cmd.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:572

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Windows\PCHEALTH\ERRORREP\QHEADLES\cmd.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1600

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 5 /tr "'C:\Windows\PCHEALTH\ERRORREP\QHEADLES\cmd.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2816

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 9 /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\audiodg.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2452

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\audiodg.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2012

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 5 /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\audiodg.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1860

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\dwm.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2732

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1964

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1640

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 11 /tr "'C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\explorer.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1452

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1356

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 12 /tr "'C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1472

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 10 /tr "'C:\Program Files\Microsoft Office\Office14\1033\cmd.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1748

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\Office14\1033\cmd.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2944

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 14 /tr "'C:\Program Files\Microsoft Office\Office14\1033\cmd.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2908

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 9 /tr "'C:\Users\Public\lsm.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2204

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Users\Public\lsm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2172

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 6 /tr "'C:\Users\Public\lsm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\surrogatewinhostsvc\blockportserver.exe

Filesize
2.5MB

MD5
20cb8781e072c5c355b82dbb35fe7d53

SHA1
0bcc2e15d5ad8b869aae6f3fbe4caec027da245a

SHA256
847c3eec06cef11c67133a2bf6263a5051691745f23c58731712d8ec58800028

SHA512
72011df2b391c8ea7edaf5b52d25c5a7df10f9c7bba38143c4ac6e55d6b10b84b4fa1d82b10ceb9bd3428253e6965567d4943f548dbe7229dba2bd72c758c027

Download Submit
C:\surrogatewinhostsvc\nu5MrHdU8wRPsPg.vbe

Filesize
210B

MD5
a79158e3b1d9ed9598b1ca48083d2c14

SHA1
cbe5a2189f5438be85e08e66bf920b0a09710549

SHA256
0cb22cafd03369625e2a4d2a984ee44b40da9552c605a93b228ee92123655f03

SHA512
29795d38d5bfae787e763f3797718c8a025ffd94d992d9ec161007a2d26ad333b311b0e832457982e53db7f4a5e52854e4899dac3ad0f91370837bd044dd1984

Download Submit
C:\surrogatewinhostsvc\wBJ3JMG47SmseQ.bat

Filesize
44B

MD5
cb20cf3cd0b69520d6609862850432fd

SHA1
0067ca01f3768a78667d6ad08246ff3bf6c3d276

SHA256
0f2839791a1a576337466fd847893e1cbe8f0376a54f4291e4d57afdaf2cd252

SHA512
64034329bf6af43e56df14f8bc02e8dd5ef495d5bb8e41d5d12bff9088143f3acda89a549d3e4a20ba3ecd5ba643539c1a02974e6cb3771b6375626c6fa2b9ae

Download Submit
memory/2144-46-0x0000000000E80000-0x0000000001100000-memory.dmp

Filesize
2.5MB

Download
memory/3036-17-0x0000000000250000-0x0000000000260000-memory.dmp

Filesize
64KB

Download
memory/3036-15-0x00000000003E0000-0x00000000003FC000-memory.dmp

Filesize
112KB

Download
memory/3036-14-0x0000000000240000-0x000000000024E000-memory.dmp

Filesize
56KB

Download
memory/3036-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3036-18-0x0000000000790000-0x00000000007E6000-memory.dmp

Filesize
344KB

Download
memory/3036-19-0x0000000000420000-0x000000000042C000-memory.dmp

Filesize
48KB

Download
memory/3036-21-0x00000000004C0000-0x00000000004CC000-memory.dmp

Filesize
48KB

Download
memory/3036-20-0x00000000004B0000-0x00000000004B8000-memory.dmp

Filesize
32KB

Download
memory/3036-22-0x00000000004D0000-0x00000000004DE000-memory.dmp

Filesize
56KB

Download
memory/3036-23-0x0000000000660000-0x000000000066A000-memory.dmp

Filesize
40KB

Download
memory/3036-13-0x0000000000800000-0x0000000000A80000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads