dcrat | 85fffd5634882bd2eb4f667d225cba962ef6e49d1a497ec7139df3ff41c38fe3

Resubmissions

07-02-2025 13:00

250207-p8nmwssqcj 10

07-02-2025 12:55

250207-p5zwraspfp 10

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 12:55

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General

Target

3473e4f724dbe6f719b6e02945fd8e92.exe
Size

22.3MB
MD5

3473e4f724dbe6f719b6e02945fd8e92
SHA1

260a8c3c4a9759e21173ba58353203120418ac18
SHA256

85fffd5634882bd2eb4f667d225cba962ef6e49d1a497ec7139df3ff41c38fe3
SHA512

10f6802d6d8c54dfdf3e534b7b693c11597ff919e6f32777fc37715a0fbf68e13a37774c6981b8e2bda726f58e4042cc82c0b48744b495d49e2675eeb088f439
SSDEEP

393216:UDtdcuudxlyNom7rqzvP11bfVuJVy+GDBFlc64sb6BcYCJ3lBVi6rkA+LbFIDVwq:src7lyNosOj+I+GaxQ6B9CJ3nY6rkA+G

Score

10^/10

dcrat defense_evasion discovery infostealer persistence pyinstaller rat spyware stealer trojan upx

Malware Config

Signatures

DcRat 44 IoCs

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

rat infostealer dcrat

description	ioc	pid	Process
		1664	schtasks.exe
		1328	schtasks.exe
File created	C:\Windows\Offline Web Pages\1610b97d3ab4a7		surrogatebrowserdll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language		3473e4f724dbe6f719b6e02945fd8e92.exe
		2728	schtasks.exe
		1056	schtasks.exe
		1292	schtasks.exe
		1224	schtasks.exe
		2108	schtasks.exe
		320	schtasks.exe
		2404	schtasks.exe
		1284	schtasks.exe
		1020	schtasks.exe
		2036	schtasks.exe
		2092	schtasks.exe
		872	schtasks.exe
		2344	schtasks.exe
		2236	schtasks.exe
		1968	schtasks.exe
		1856	schtasks.exe
		592	schtasks.exe
		2860	schtasks.exe
		1872	schtasks.exe
		1360	schtasks.exe
		2044	schtasks.exe
		944	schtasks.exe
		712	schtasks.exe
		304	schtasks.exe
		2328	schtasks.exe
		1148	schtasks.exe
		2700	schtasks.exe
		1804	schtasks.exe
		2980	schtasks.exe
		2896	schtasks.exe
		2992	schtasks.exe
		1208	schtasks.exe
		2272	schtasks.exe
		2604	schtasks.exe
		1720	schtasks.exe
		968	schtasks.exe
		1568	schtasks.exe
		2156	schtasks.exe
		2416	schtasks.exe
		2088	schtasks.exe

Dcrat family
dcrat

Modifies WinLogon for persistence 2 TTPs 14 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:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\", \"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\", \"C:\\MSOCache\\All Users\\{90140000-002C-0409-0000-0000000FF1CE}-C\\Proof.fr\\spoolsv.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\", \"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\", \"C:\\MSOCache\\All Users\\{90140000-002C-0409-0000-0000000FF1CE}-C\\Proof.fr\\spoolsv.exe\", \"C:\\Program Files\\Windows Media Player\\csrss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\", \"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\", \"C:\\MSOCache\\All Users\\{90140000-002C-0409-0000-0000000FF1CE}-C\\Proof.fr\\spoolsv.exe\", \"C:\\Program Files\\Windows Media Player\\csrss.exe\", \"C:\\Windows\\fr-FR\\smss.exe\", \"C:\\Program Files\\Internet Explorer\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\", \"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\", \"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\", \"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\", \"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\", \"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\", \"C:\\MSOCache\\All Users\\{90140000-002C-0409-0000-0000000FF1CE}-C\\Proof.fr\\spoolsv.exe\", \"C:\\Program Files\\Windows Media Player\\csrss.exe\", \"C:\\Windows\\fr-FR\\smss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\", \"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\", \"C:\\Users\\Default\\Favorites\\sppsvc.exe\""	surrogatebrowserdll.exe

Process spawned unexpected child process 42 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	2700	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	320	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2156	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1804	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2980	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2044	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2728	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	944	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2896	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2992	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2860	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1056	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1208	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1292	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1224	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	872	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1664	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2328	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2404	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2416	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1856	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1284	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1020	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1148	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1872	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1328	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2036	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	712	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2272	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2604	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2088	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1720	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	968	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2108	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1360	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2092	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	592	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2344	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1568	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2236	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	304	2628	schtasks.exe	35
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1968	2628	schtasks.exe	35

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

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/files/0x0008000000016ce8-11.dat	dcrat
behavioral1/memory/2828-15-0x0000000001230000-0x0000000001398000-memory.dmp	dcrat
behavioral1/memory/1392-83-0x0000000000240000-0x00000000003A8000-memory.dmp	dcrat

Disables Task Manager via registry modification
defense_evasion

Executes dropped EXE 5 IoCs

pid	Process
2828	surrogatebrowserdll.exe
2448	compact.exe
2292	compact.exe
1216	Process not Found
1392	lsass.exe

Loads dropped DLL 5 IoCs

pid	Process
2776	cmd.exe
2776	cmd.exe
2776	cmd.exe
2292	compact.exe
1216	Process not Found

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

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 28 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\MSOCache\\All Users\\{90140000-002C-0409-0000-0000000FF1CE}-C\\Proof.fr\\spoolsv.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default\\Favorites\\sppsvc.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows Media Player\\csrss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\spoolsv.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Windows\\fr-FR\\smss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Windows\\fr-FR\\smss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsm = "\"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsm.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default\\Favorites\\sppsvc.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files\\Windows Media Player\\ja-JP\\smss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\v3.5\\de\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\MSOCache\\All Users\\{90140000-002C-0409-0000-0000000FF1CE}-C\\Proof.fr\\spoolsv.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Windows\\Offline Web Pages\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Windows\\Help\\Windows\\ja-JP\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Recovery\\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\\lsass.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows Media Player\\csrss.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\Branding\\ShellBrd\\dllhost.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Program Files\\Internet Explorer\\OSPPSVC.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\Users\\Public\\Documents\\My Music\\WmiPrvSE.exe\""	surrogatebrowserdll.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Program Files\\Internet Explorer\\OSPPSVC.exe\""	surrogatebrowserdll.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

defense_evasion trojan

System Information Discovery

T1082

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

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000500000001a489-76.dat	upx
behavioral1/memory/2292-78-0x000007FEF56C0000-0x000007FEF5B26000-memory.dmp	upx

Drops file in Program Files directory 10 IoCs

description	ioc	Process
File created	C:\Program Files\Internet Explorer\OSPPSVC.exe	surrogatebrowserdll.exe
File created	C:\Program Files\VideoLAN\VLC\hrtfs\spoolsv.exe	surrogatebrowserdll.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\OSPPSVC.exe	surrogatebrowserdll.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\1610b97d3ab4a7	surrogatebrowserdll.exe
File created	C:\Program Files\Windows Media Player\886983d96e3d3e	surrogatebrowserdll.exe
File created	C:\Program Files\Internet Explorer\1610b97d3ab4a7	surrogatebrowserdll.exe
File created	C:\Program Files\VideoLAN\VLC\hrtfs\f3b6ecef712a24	surrogatebrowserdll.exe
File created	C:\Program Files\Windows Media Player\ja-JP\smss.exe	surrogatebrowserdll.exe
File created	C:\Program Files\Windows Media Player\ja-JP\69ddcba757bf72	surrogatebrowserdll.exe
File created	C:\Program Files\Windows Media Player\csrss.exe	surrogatebrowserdll.exe

Drops file in Windows directory 10 IoCs

description	ioc	Process
File created	C:\Windows\Help\Windows\ja-JP\1610b97d3ab4a7	surrogatebrowserdll.exe
File created	C:\Windows\Branding\ShellBrd\dllhost.exe	surrogatebrowserdll.exe
File created	C:\Windows\winsxs\x86_microsoft-windows-m..c-oracle-driver-dll_31bf3856ad364e35_6.1.7601.17514_none_6b16a37ea1353bb1\Idle.exe	surrogatebrowserdll.exe
File opened for modification	C:\Windows\Offline Web Pages\OSPPSVC.exe	surrogatebrowserdll.exe
File created	C:\Windows\Offline Web Pages\1610b97d3ab4a7	surrogatebrowserdll.exe
File created	C:\Windows\Help\Windows\ja-JP\OSPPSVC.exe	surrogatebrowserdll.exe
File created	C:\Windows\Branding\ShellBrd\5940a34987c991	surrogatebrowserdll.exe
File created	C:\Windows\fr-FR\smss.exe	surrogatebrowserdll.exe
File created	C:\Windows\fr-FR\69ddcba757bf72	surrogatebrowserdll.exe
File created	C:\Windows\Offline Web Pages\OSPPSVC.exe	surrogatebrowserdll.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x0008000000016d04-59.dat	pyinstaller

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 4 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	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3473e4f724dbe6f719b6e02945fd8e92.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2128	reg.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 42 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2108	schtasks.exe
592	schtasks.exe
1804	schtasks.exe
1292	schtasks.exe
872	schtasks.exe
712	schtasks.exe
1720	schtasks.exe
1360	schtasks.exe
320	schtasks.exe
2044	schtasks.exe
1664	schtasks.exe
2404	schtasks.exe
2416	schtasks.exe
1224	schtasks.exe
2604	schtasks.exe
1568	schtasks.exe
304	schtasks.exe
2328	schtasks.exe
1856	schtasks.exe
1872	schtasks.exe
968	schtasks.exe
2236	schtasks.exe
2980	schtasks.exe
2992	schtasks.exe
1020	schtasks.exe
1148	schtasks.exe
2272	schtasks.exe
2088	schtasks.exe
2344	schtasks.exe
2728	schtasks.exe
944	schtasks.exe
2860	schtasks.exe
1284	schtasks.exe
2036	schtasks.exe
2156	schtasks.exe
1968	schtasks.exe
2092	schtasks.exe
2700	schtasks.exe
2896	schtasks.exe
1056	schtasks.exe
1208	schtasks.exe
1328	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2828	surrogatebrowserdll.exe
2828	surrogatebrowserdll.exe
2828	surrogatebrowserdll.exe
2828	surrogatebrowserdll.exe
2828	surrogatebrowserdll.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe
1392	lsass.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1392	lsass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	surrogatebrowserdll.exe
Token: SeDebugPrivilege	1392	lsass.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 328	1948	3473e4f724dbe6f719b6e02945fd8e92.exe	30
PID 1948 wrote to memory of 328	1948	3473e4f724dbe6f719b6e02945fd8e92.exe	30
PID 1948 wrote to memory of 328	1948	3473e4f724dbe6f719b6e02945fd8e92.exe	30
PID 1948 wrote to memory of 328	1948	3473e4f724dbe6f719b6e02945fd8e92.exe	30
PID 328 wrote to memory of 2776	328	WScript.exe	31
PID 328 wrote to memory of 2776	328	WScript.exe	31
PID 328 wrote to memory of 2776	328	WScript.exe	31
PID 328 wrote to memory of 2776	328	WScript.exe	31
PID 2776 wrote to memory of 2828	2776	cmd.exe	33
PID 2776 wrote to memory of 2828	2776	cmd.exe	33
PID 2776 wrote to memory of 2828	2776	cmd.exe	33
PID 2776 wrote to memory of 2828	2776	cmd.exe	33
PID 2828 wrote to memory of 288	2828	surrogatebrowserdll.exe	78
PID 2828 wrote to memory of 288	2828	surrogatebrowserdll.exe	78
PID 2828 wrote to memory of 288	2828	surrogatebrowserdll.exe	78
PID 2776 wrote to memory of 2128	2776	cmd.exe	80
PID 2776 wrote to memory of 2128	2776	cmd.exe	80
PID 2776 wrote to memory of 2128	2776	cmd.exe	80
PID 2776 wrote to memory of 2128	2776	cmd.exe	80
PID 288 wrote to memory of 2444	288	cmd.exe	81
PID 288 wrote to memory of 2444	288	cmd.exe	81
PID 288 wrote to memory of 2444	288	cmd.exe	81
PID 2776 wrote to memory of 2448	2776	cmd.exe	82
PID 2776 wrote to memory of 2448	2776	cmd.exe	82
PID 2776 wrote to memory of 2448	2776	cmd.exe	82
PID 2776 wrote to memory of 2448	2776	cmd.exe	82
PID 2448 wrote to memory of 2292	2448	compact.exe	83
PID 2448 wrote to memory of 2292	2448	compact.exe	83
PID 2448 wrote to memory of 2292	2448	compact.exe	83
PID 288 wrote to memory of 1392	288	cmd.exe	84
PID 288 wrote to memory of 1392	288	cmd.exe	84
PID 288 wrote to memory of 1392	288	cmd.exe	84

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"	surrogatebrowserdll.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	lsass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	lsass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	lsass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	surrogatebrowserdll.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	surrogatebrowserdll.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\3473e4f724dbe6f719b6e02945fd8e92.exe
"C:\Users\Admin\AppData\Local\Temp\3473e4f724dbe6f719b6e02945fd8e92.exe"
1⤵
- DcRat
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\comhost\guXpGjO4zLq.vbe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:328
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\comhost\BLFWFkGLPiVJO3IqiKn.bat" "
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2776
  - - C:\comhost\surrogatebrowserdll.exe
      "C:\comhost\surrogatebrowserdll.exe"
      4⤵
      DcRat
      Modifies WinLogon for persistence
      UAC bypass
      Executes dropped EXE
      Adds Run key to start application
      Checks whether UAC is enabled
      Drops file in Program Files directory
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:2828
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\06rLEYGb3M.bat"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:288
      - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        6⤵
        
        PID:2444
      - C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsass.exe
        
        "C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsass.exe"
        6⤵
        UAC bypass
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:1392
  - - C:\Windows\SysWOW64\reg.exe
      reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
      4⤵
      System Location Discovery: System Language Discovery
      Modifies registry key
      PID:2128
  - - C:\comhost\compact.exe
      compact.exe
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2448
    - - C:\comhost\compact.exe
        
        compact.exe
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        
        PID:2292

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 9 /tr "'C:\Windows\Offline Web Pages\OSPPSVC.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2700

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Windows\Offline Web Pages\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:320

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 12 /tr "'C:\Windows\Offline Web Pages\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2156

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\spoolsv.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1804

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2980

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2044

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsm.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2728

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:944

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2896

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Users\Default\Favorites\sppsvc.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2992

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Default\Favorites\sppsvc.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2860

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Users\Default\Favorites\sppsvc.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1056

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Media Player\ja-JP\smss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1208

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\ja-JP\smss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1292

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Media Player\ja-JP\smss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1224

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 14 /tr "'C:\Windows\Help\Windows\ja-JP\OSPPSVC.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Windows\Help\Windows\ja-JP\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1664

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 9 /tr "'C:\Windows\Help\Windows\ja-JP\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2328

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 8 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\OSPPSVC.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2416

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2404

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 7 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1856

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 11 /tr "'C:\Users\Public\Documents\My Music\WmiPrvSE.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1284

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\Public\Documents\My Music\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1020

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 5 /tr "'C:\Users\Public\Documents\My Music\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1148

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsass.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsass.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1328

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\lsass.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2036

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Windows\Branding\ShellBrd\dllhost.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:712

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\Branding\ShellBrd\dllhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2272

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows\Branding\ShellBrd\dllhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2604

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.fr\spoolsv.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2088

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.fr\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1720

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-002C-0409-0000-0000000FF1CE}-C\Proof.fr\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:968

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Media Player\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2108

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1360

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Media Player\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2092

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Windows\fr-FR\smss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:592

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\fr-FR\smss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2344

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\Windows\fr-FR\smss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1568

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 11 /tr "'C:\Program Files\Internet Explorer\OSPPSVC.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2236

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Program Files\Internet Explorer\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:304

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 9 /tr "'C:\Program Files\Internet Explorer\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\06rLEYGb3M.bat

Filesize
223B

MD5
fd6f8dd3e6744448037a3d5189b996fe

SHA1
42f2c4726b1faf21ddd86df0fe8c43f72fa216b3

SHA256
c24fe385dc8b02260ee0531128fcc16d78afdc254bb6cbeb7cdad74146793054

SHA512
026f72f2ba506de9cfdf6d0a65d54a9d5f2b4b4da2ebd272c9008087e23c25a3a37be4c23b7104370b4fbc1023153a9fbe3bf5ab038d971fe4da1725a9f67a15

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI24482\python310.dll

Filesize
1.4MB

MD5
72c65de0cc88d6a26d5a7040aaf1fb60

SHA1
68dae332ade43106c72e68a497b6b7df6b314425

SHA256
769f20bcec63eb6567cca095ea59ffcda2c87e2b8600503f0e4f976dfb8da2bb

SHA512
5f658e0bee185613a37f946069ac6723fff93e542a4eb6e3435766c58d09d82894b85502f1686ffc9318bdf4b3a858490866ca56b90238c8c903e794c3a4e3fb

Download Submit
C:\comhost\BLFWFkGLPiVJO3IqiKn.bat

Filesize
167B

MD5
e6d45f4ca208778bc4eff7af11c6d395

SHA1
323d431d91c277436626f0a06c4c4d5cfaa30a4c

SHA256
62e8637515e65993310edef622c1dd4bf887169f990d6e1ef6f4e2abe05b08f6

SHA512
9e477e63601cab2db9abbd1cf0e15ae82c76cd1ce1ea15b7d39ee406e195cbfbd0f768db87449a23d184986d7ba0a0f4d3debfba88438dcfa0c52387d385574d

Download Submit
C:\comhost\guXpGjO4zLq.vbe

Filesize
203B

MD5
681ee5cace3c8cc890294f2978b7ecc8

SHA1
b9cc792a9634ebccae6e26db14c1abbb1f2a1444

SHA256
01e8ad969c5a3edf562c337f2afdad0edf0e6f0a23a1000cb8ec28464bacc2bb

SHA512
2f95e54bf472b714c3c0a5d24b73da83edff075997bb19f72c5c642d02f732733498673b9cb0bcc8f14ab859df847b1b32dc9b5a9d02b01cb93ece2b981abb28

Download Submit
\comhost\compact.exe

Filesize
20.8MB

MD5
17babc75d1cc5aaf31d53844c1322563

SHA1
e599c7cec596484387568762c34d69ba875d705d

SHA256
78348765157b016dfba8071294b4eae270b4c13a7f2ad4ae4bedd7de49826c65

SHA512
f27007cb825f5b1d2e2fd45277aaae2a161423b0bf6d55d3026852e3da86f6178f9922e18e563dec938a43c48f29a9587f462dadc8ae2713bd6babdcf9673dc8

Download Submit
\comhost\surrogatebrowserdll.exe

Filesize
1.4MB

MD5
344f880d24b33c2df68542f45e93e1c7

SHA1
4afb2c1108541f5fc6e5b1e2ff52cb3b5c92d779

SHA256
d7040804f9de76907808df400d9b1d3337f0765fbd43bd04a03de2ee9453cbcf

SHA512
a6e34c56c377ab5473d15280caab32ae7e830570226e6996fc5766ba1f6e5496eb01af975497bb0cbdc11f066870fc087bb6d638248d52d64e2de8f78e9f7079

Download Submit
memory/1392-83-0x0000000000240000-0x00000000003A8000-memory.dmp

Filesize
1.4MB

Download
memory/2292-78-0x000007FEF56C0000-0x000007FEF5B26000-memory.dmp

Filesize
4.4MB

Download
memory/2828-20-0x0000000000A50000-0x0000000000A5C000-memory.dmp

Filesize
48KB

Download
memory/2828-21-0x0000000000A60000-0x0000000000A72000-memory.dmp

Filesize
72KB

Download
memory/2828-22-0x0000000000C20000-0x0000000000C28000-memory.dmp

Filesize
32KB

Download
memory/2828-23-0x00000000011A0000-0x00000000011A8000-memory.dmp

Filesize
32KB

Download
memory/2828-24-0x00000000011B0000-0x00000000011BE000-memory.dmp

Filesize
56KB

Download
memory/2828-25-0x00000000011E0000-0x00000000011EC000-memory.dmp

Filesize
48KB

Download
memory/2828-19-0x00000000009C0000-0x00000000009CA000-memory.dmp

Filesize
40KB

Download
memory/2828-18-0x00000000009B0000-0x00000000009C0000-memory.dmp

Filesize
64KB

Download
memory/2828-17-0x00000000009A0000-0x00000000009A8000-memory.dmp

Filesize
32KB

Download
memory/2828-16-0x00000000004E0000-0x00000000004FC000-memory.dmp

Filesize
112KB

Download
memory/2828-15-0x0000000001230000-0x0000000001398000-memory.dmp

Filesize
1.4MB

Download