dcrat | c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644

General

Target

a452777147dc02f5d8ccacfc0502ac7c.exe
Size

828KB
MD5

a452777147dc02f5d8ccacfc0502ac7c
SHA1

da8810335c641f55872b90a6ea7f178a0875721c
SHA256

c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644
SHA512

5015d12dac1a4a6825dcd01adf04b9ea307b3654e851bf07e41087f4ebb1b744b67c397eb0af282b3452cae5849266c7e00c2e41537795d7c78e5c043012d760
SSDEEP

12288:jJx18sm9InH/pOz0KkYXPFSdj+ZygwBEMjdvcGtJN1adr:jBDmqnH/G0KkYXKcedvceN1ar

Score

10^/10

dcrat infostealer persistence rat

Malware Config

Signatures

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

Modifies WinLogon for persistence 2 TTPs 8 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\", \"C:\\Users\\Default User\\fontdrvhost.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.0\\smss.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\", \"C:\\Users\\Default User\\fontdrvhost.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.0\\smss.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\Idle.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\", \"C:\\Users\\Default User\\fontdrvhost.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.0\\smss.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\Idle.exe\", \"C:\\Program Files\\Windows Multimedia Platform\\fontdrvhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\", \"C:\\Users\\Default User\\fontdrvhost.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.0\\smss.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\Idle.exe\", \"C:\\Program Files\\Windows Multimedia Platform\\fontdrvhost.exe\", \"C:\\Windows\\PolicyDefinitions\\backgroundTaskHost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\", \"C:\\Users\\Default User\\fontdrvhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe

Process spawned unexpected child process 24 IoCs

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

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exe

description	pid	pid_target	process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2872	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	116	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1880	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	912	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3560	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2388	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1124	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4484	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3736	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2444	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3044	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4456	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5028	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1980	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2980	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3260	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2656	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2260	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2624	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4004	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4036	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2468	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4128	4360	schtasks.exe
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2520	4360	schtasks.exe

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

Processes:

resource	yara_rule
behavioral2/memory/3200-1-0x0000000000720000-0x00000000007F6000-memory.dmp	dcrat
C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\smss.exe	dcrat

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	a452777147dc02f5d8ccacfc0502ac7c.exe

Executes dropped EXE 1 IoCs

Processes:

fontdrvhost.exe

pid process

804 fontdrvhost.exe

pid	process
804	fontdrvhost.exe

Adds Run key to start application 2 TTPs 16 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.0\\smss.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Program Files\\Windows Media Player\\ja-JP\\Idle.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Program Files\\Windows Multimedia Platform\\fontdrvhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Windows\\PolicyDefinitions\\backgroundTaskHost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Windows\\PolicyDefinitions\\backgroundTaskHost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Users\\Default User\\fontdrvhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Users\\Default User\\fontdrvhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Program Files\\Windows Multimedia Platform\\fontdrvhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Program Files\\Windows Media Player\\ja-JP\\Idle.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Program Files (x86)\\Windows Portable Devices\\dllhost.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Windows\\RemotePackages\\RemoteDesktops\\winlogon.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.0\\smss.exe\""	a452777147dc02f5d8ccacfc0502ac7c.exe

Drops file in Program Files directory 9 IoCs

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exe

description	ioc	process
File created	C:\Program Files\Windows Media Player\ja-JP\6ccacd8608530f	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files\Windows Multimedia Platform\fontdrvhost.exe	a452777147dc02f5d8ccacfc0502ac7c.exe
File opened for modification	C:\Program Files (x86)\Windows Portable Devices\dllhost.exe	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\smss.exe	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files\Windows Media Player\ja-JP\Idle.exe	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files\Windows Multimedia Platform\5b884080fd4f94	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files (x86)\Windows Portable Devices\dllhost.exe	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files (x86)\Windows Portable Devices\5940a34987c991	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\69ddcba757bf72	a452777147dc02f5d8ccacfc0502ac7c.exe

Drops file in Windows directory 4 IoCs

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exe

description	ioc	process
File created	C:\Windows\RemotePackages\RemoteDesktops\cc11b995f2a76d	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Windows\PolicyDefinitions\backgroundTaskHost.exe	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Windows\PolicyDefinitions\eddb19405b7ce1	a452777147dc02f5d8ccacfc0502ac7c.exe
File created	C:\Windows\RemotePackages\RemoteDesktops\winlogon.exe	a452777147dc02f5d8ccacfc0502ac7c.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 24 IoCs

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

persistence

Scheduled Task/Job

T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid	process
2624	schtasks.exe
2468	schtasks.exe
1880	schtasks.exe
3560	schtasks.exe
4484	schtasks.exe
4456	schtasks.exe
2656	schtasks.exe
4036	schtasks.exe
2872	schtasks.exe
912	schtasks.exe
1124	schtasks.exe
3260	schtasks.exe
4004	schtasks.exe
2520	schtasks.exe
3044	schtasks.exe
5028	schtasks.exe
2980	schtasks.exe
2260	schtasks.exe
4128	schtasks.exe
116	schtasks.exe
2388	schtasks.exe
3736	schtasks.exe
2444	schtasks.exe
1980	schtasks.exe

Modifies registry class 1 IoCs

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000_Classes\Local Settings	a452777147dc02f5d8ccacfc0502ac7c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exefontdrvhost.exe

pid process

3200 a452777147dc02f5d8ccacfc0502ac7c.exe
804 fontdrvhost.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

a452777147dc02f5d8ccacfc0502ac7c.exefontdrvhost.exe

description pid process

Token: SeDebugPrivilege 3200 a452777147dc02f5d8ccacfc0502ac7c.exe
Token: SeDebugPrivilege 804 fontdrvhost.exe

pid	process
3200	a452777147dc02f5d8ccacfc0502ac7c.exe
804	fontdrvhost.exe

description	pid	process
Token: SeDebugPrivilege	3200	a452777147dc02f5d8ccacfc0502ac7c.exe
Token: SeDebugPrivilege	804	fontdrvhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a452777147dc02f5d8ccacfc0502ac7c.execmd.exe

description	pid	process	target process
PID 3200 wrote to memory of 2576	3200	a452777147dc02f5d8ccacfc0502ac7c.exe	cmd.exe
PID 3200 wrote to memory of 2576	3200	a452777147dc02f5d8ccacfc0502ac7c.exe	cmd.exe
PID 2576 wrote to memory of 2400	2576	cmd.exe	w32tm.exe
PID 2576 wrote to memory of 2400	2576	cmd.exe	w32tm.exe
PID 2576 wrote to memory of 804	2576	cmd.exe	fontdrvhost.exe
PID 2576 wrote to memory of 804	2576	cmd.exe	fontdrvhost.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\a452777147dc02f5d8ccacfc0502ac7c.exe
"C:\Users\Admin\AppData\Local\Temp\a452777147dc02f5d8ccacfc0502ac7c.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- 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:3200
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\jg9U23qGKp.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:2400
- - C:\Users\Default User\fontdrvhost.exe
    "C:\Users\Default User\fontdrvhost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:804

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Portable Devices\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:116

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Portable Devices\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3560

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:912

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2388

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 12 /tr "'C:\Windows\RemotePackages\RemoteDesktops\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1124

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\RemotePackages\RemoteDesktops\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4484

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Windows\RemotePackages\RemoteDesktops\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3736

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Users\Default User\fontdrvhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2444

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Default User\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3044

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4456

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\smss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5028

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1980

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2980

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Media Player\ja-JP\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3260

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\ja-JP\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2656

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Media Player\ja-JP\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2260

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Multimedia Platform\fontdrvhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2624

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files\Windows Multimedia Platform\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4004

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Multimedia Platform\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4036

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Windows\PolicyDefinitions\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2468

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Windows\PolicyDefinitions\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4128

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 7 /tr "'C:\Windows\PolicyDefinitions\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

Scheduled Task/Job

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\smss.exe

Filesize
828KB

MD5
a452777147dc02f5d8ccacfc0502ac7c

SHA1
da8810335c641f55872b90a6ea7f178a0875721c

SHA256
c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644

SHA512
5015d12dac1a4a6825dcd01adf04b9ea307b3654e851bf07e41087f4ebb1b744b67c397eb0af282b3452cae5849266c7e00c2e41537795d7c78e5c043012d760

Download Submit
C:\Users\Admin\AppData\Local\Temp\jg9U23qGKp.bat

Filesize
202B

MD5
905ae58e5990263fc9d47f39aaa4683c

SHA1
e49b63d82fceb2e5a57986b0e3d7bb9d80936efb

SHA256
1ac30f63e1ed0964219cdba40240b06f185cea0943ed3b1c23a1002e1b377277

SHA512
76f09749436b7b302db1b75d669968db6343053a87724675262b9a67e30c9c3b71b0aa7de25ee20623730c1b30122c0ee5552cd263fabd4716b18502467fcb02

Download Submit
memory/3200-0-0x00007FFE63123000-0x00007FFE63125000-memory.dmp

Filesize
8KB

Download
memory/3200-1-0x0000000000720000-0x00000000007F6000-memory.dmp

Filesize
856KB

Download
memory/3200-2-0x00007FFE63120000-0x00007FFE63BE1000-memory.dmp

Filesize
10.8MB

Download
memory/3200-24-0x00007FFE63120000-0x00007FFE63BE1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads