dcrat | 9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2025 04:02

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General

Target

9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Size

952KB
MD5

fa2fda3605fcdbaf69212aa3edb9f0f4
SHA1

f44fde95e3d9915f65fab24f48dcd4eb505a26da
SHA256

9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325
SHA512

019536005222cf19bdcc3c018993e3be36b1149f3b7a27938f65194b59aed6eba256e5949a119c7b90c7fe441b2201b7093e19066821875d81051e1869fccfdd
SSDEEP

24576:2+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:R8/KfRTK

Score

10^/10

dcrat defense_evasion infostealer persistence rat trojan

Malware Config

Signatures

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

Modifies WinLogon for persistence 2 TTPs 9 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:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\", \"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\", \"C:\\Windows\\System32\\KBDARME\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\", \"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\", \"C:\\Windows\\System32\\KBDARME\\lsass.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\mapping\\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\", \"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\", \"C:\\Windows\\System32\\KBDARME\\lsass.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\mapping\\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe\", \"C:\\Windows\\System32\\cabapi\\lsass.exe\", \"C:\\Users\\Admin\\OfficeClickToRun.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\", \"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\", \"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\", \"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\", \"C:\\Windows\\System32\\KBDARME\\lsass.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\mapping\\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe\", \"C:\\Windows\\System32\\cabapi\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\", \"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Process spawned unexpected child process 9 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	2456	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4508	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2872	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3384	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3492	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3348	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4140	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1072	2868	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5060	2868	schtasks.exe	83

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"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.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 10 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/4080-1-0x0000000000680000-0x0000000000774000-memory.dmp	dcrat
behavioral2/files/0x0007000000023cbf-20.dat	dcrat
behavioral2/files/0x0007000000023ccf-43.dat	dcrat
behavioral2/files/0x000b000000023c9e-54.dat	dcrat
behavioral2/files/0x0007000000023cd0-65.dat	dcrat
behavioral2/files/0x0009000000023cb8-76.dat	dcrat
behavioral2/files/0x0009000000023cbb-87.dat	dcrat
behavioral2/files/0x0009000000023cbf-98.dat	dcrat
behavioral2/files/0x000a000000023cc3-121.dat	dcrat
behavioral2/memory/4236-146-0x0000000000B10000-0x0000000000C04000-memory.dmp	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Executes dropped EXE 1 IoCs

pid	Process
4236	lsass.exe

Adds Run key to start application 2 TTPs 18 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\KBDARME\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Users\\Admin\\OfficeClickToRun.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Program Files (x86)\\Google\\Temp\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\CspProxy\\RuntimeBroker.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\mapping\\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\ucrtbase_enclave\\dllhost.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\SettingsHandlers_Display\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\cabapi\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Users\\Admin\\OfficeClickToRun.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Recovery\\WindowsRE\\fontdrvhost.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\KBDARME\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\mapping\\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\cabapi\\lsass.exe\""	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	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	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Drops file in System32 directory 25 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\SettingsHandlers_Display\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\ucrtbase_enclave\5940a34987c99120d96dace90a3f93f329dcad63	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\KBDARME\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\ucrtbase_enclave\RCXC039.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\ucrtbase_enclave\dllhost.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\CspProxy\RuntimeBroker.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\SettingsHandlers_Display\RCXC55D.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\cabapi\RCXCC59.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\cabapi\RCXCCC7.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\CspProxy\RuntimeBroker.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\CspProxy\9e8d7a4ca61bd92aff00cc37a7a4d62a2cac998d	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\cabapi\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\CspProxy\RCXBE25.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\ucrtbase_enclave\RCXC0A7.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\SettingsHandlers_Display\RCXC5CC.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\SettingsHandlers_Display\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\SettingsHandlers_Display\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\cabapi\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\CspProxy\RCXBDB6.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\KBDARME\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\cabapi\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\ucrtbase_enclave\dllhost.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Windows\System32\KBDARME\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\KBDARME\RCXC7E0.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Windows\System32\KBDARME\RCXC84E.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\Temp\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Program Files (x86)\Google\Temp\RCXBB24.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Program Files (x86)\Google\Temp\RCXBBA2.tmp	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File created	C:\Program Files (x86)\Google\Temp\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
File opened for modification	C:\Program Files (x86)\Google\Temp\lsass.exe	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 9 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3492	schtasks.exe
3348	schtasks.exe
1072	schtasks.exe
2456	schtasks.exe
4508	schtasks.exe
2872	schtasks.exe
3384	schtasks.exe
4140	schtasks.exe
5060	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4080	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
4080	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
4080	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Token: SeDebugPrivilege	4236	lsass.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 4944	4080	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe	94
PID 4080 wrote to memory of 4944	4080	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe	94
PID 4944 wrote to memory of 756	4944	cmd.exe	96
PID 4944 wrote to memory of 756	4944	cmd.exe	96
PID 4944 wrote to memory of 4236	4944	cmd.exe	103
PID 4944 wrote to memory of 4236	4944	cmd.exe	103

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\ConsentPromptBehaviorAdmin = "0"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.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"	9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.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\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe
"C:\Users\Admin\AppData\Local\Temp\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe"
1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4080
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\7jHX0jRKQJ.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4944
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:756
- - C:\Windows\System32\SettingsHandlers_Display\lsass.exe
    "C:\Windows\System32\SettingsHandlers_Display\lsass.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of AdjustPrivilegeToken
    - System policy modification
    PID:4236

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\Temp\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2456

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\CspProxy\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4508

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\System32\ucrtbase_enclave\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3384

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\SettingsHandlers_Display\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3492

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\KBDARME\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3348

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\mapping\9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4140

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\cabapi\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1072

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Users\Admin\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5060

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Google\Temp\lsass.exe

Filesize
952KB

MD5
bbaab1b466eaa75912de253e5b254879

SHA1
3ed8bf93feab89ffb307bc495da7250be9482ba1

SHA256
d2c185f14d0d5ff783de99c730dfb13b2dad1eb9ec7f1c7d414f1e84fb31dc74

SHA512
7d7aba353ed2d059b99cca5987e844ef0e9c01648c03647e7fe382a4166af5df7ca1a6fbb1da114297397e6fad05ac739f809f3e8f738d2657b56e9f44bc1e2f

Download Submit
C:\Recovery\WindowsRE\fontdrvhost.exe

Filesize
952KB

MD5
16a41aff9033dfe4838fca62ed177885

SHA1
a830e7fa80a627d34a0bca3969463c2987398809

SHA256
a3679c69ed8efb1a0f38cbf3ebaaa3eebe99cde0542e2fdaede7e39e015ba812

SHA512
8b41accb63fa81d1f3897517ff3e90ef7a3430c3d652ca5b814d6fd3a2c250a7b76d7d12587a7b90e30cffeddfb15f71f2dbecc01cac38f0e8bc91b347d88141

Download Submit
C:\Users\Admin\AppData\Local\Temp\7jHX0jRKQJ.bat

Filesize
218B

MD5
1c2be10cc16eeeff645196c6da5658d1

SHA1
03ec056e03e106b3104fa77f8c6f44e0c77f5695

SHA256
37742c20cb06e5a2b639fb864d2782b0ec122c36c29f1f02203311b5d5130630

SHA512
c5acc08a53fcac7fafecb7e58fdaac1740dab03ddd698f6f72c24ec377a59adadd711e38fca0f71617b65d1caa0fb6e08df0791846eb4657ae5c8aca7a4da443

Download Submit
C:\Windows\System32\CspProxy\RuntimeBroker.exe

Filesize
952KB

MD5
84ca0cbc2d136a7471709f010f2dbfb3

SHA1
03d26b9bda82578309fe9149b78a6b5127eafe57

SHA256
1ff97673ae54a6b42f6b358f9fcb58f132c4a3e13b715164997bf1d7a7b6713f

SHA512
4bfadc40580678dda409444a33dda1200f69df3197f0bbe3ac341077e2212952a459abb006c62060df21f52bdf423b7a046118582441f622e94f48fa94456aa3

Download Submit
C:\Windows\System32\KBDARME\lsass.exe

Filesize
952KB

MD5
09bf8e1434dac78175ac86f3aae09e5d

SHA1
270969aa4271a7bf0bb6237379639c51bcfb21ac

SHA256
efe9aa7fe3235f3908b882265c4739a7461c7dcab6f85bd3d3625ddb900594d4

SHA512
2463d1cd7da4d0b7fffd0a000b5d8164fc9ade78665d1b1cab047daf3719c79830f50e775c22c44decafb8e5d57e55e20e69d3dcdf3141fbf6991c31ad3185dc

Download Submit
C:\Windows\System32\SettingsHandlers_Display\lsass.exe

Filesize
952KB

MD5
fa2fda3605fcdbaf69212aa3edb9f0f4

SHA1
f44fde95e3d9915f65fab24f48dcd4eb505a26da

SHA256
9d6543c22a9d71de6a5a08d0189944fd98da698e917662fac24f98f2e08e2325

SHA512
019536005222cf19bdcc3c018993e3be36b1149f3b7a27938f65194b59aed6eba256e5949a119c7b90c7fe441b2201b7093e19066821875d81051e1869fccfdd

Download Submit
C:\Windows\System32\SettingsHandlers_Display\lsass.exe

Filesize
952KB

MD5
ec4b1eef70631b1a57ba8ef409f0864d

SHA1
be07f7de9aad29a55a5e80ae43bad6fe4ebddd39

SHA256
9a8dc43ff35c581c6eeb141a0ed30b38c8a37e062a7317e51b2fb57dec19118b

SHA512
a93f5087e15ba5c38217ad1d446c13bd8bacd6e55cd64c4cbdd34bbdf19e30a95a4f68c14365a2a8cd25265b1392ef969551acf6a967407ed112db17faaf14cf

Download Submit
C:\Windows\System32\cabapi\lsass.exe

Filesize
952KB

MD5
23e4fe94da1ac9f6993040a9d023cafd

SHA1
f21ed1fad9a0371c9503b9efaaab82f09ac2a82e

SHA256
822fb2762d323d5dee32c3d06eb2fecd99def62412388f7f567e10ff194236ad

SHA512
528a65f8e500e83881e42f1a1c7d095e0d81da6b3755c84e88894f9648c8db4b5fc701bbaba1ae3bf0dff4b8d6588ab74a0b2cd6fcbe05969207e1306f0084bd

Download Submit
C:\Windows\System32\ucrtbase_enclave\dllhost.exe

Filesize
952KB

MD5
53b1606229ea1d8de9c3d65e3ddf4959

SHA1
2439aa60359a558697122e66119a1235f9f2437e

SHA256
d43fd78a80c6e551ed9be6a87aa468bda76440fd1bd5b5d8a0c19f995eb9eacc

SHA512
d0488c9b6741c855d7655beffb445f7e1de529297a2d0026184cdf8abeacc818bdad63d28bb7b17fec50396f96b4e99febdf2fe63539eae672b50e1c4f08d18c

Download Submit
memory/4080-5-0x0000000000F50000-0x0000000000F5A000-memory.dmp

Filesize
40KB

Download
memory/4080-0-0x00007FFFA5FC3000-0x00007FFFA5FC5000-memory.dmp

Filesize
8KB

Download
memory/4080-8-0x0000000002840000-0x0000000002848000-memory.dmp

Filesize
32KB

Download
memory/4080-10-0x0000000002870000-0x000000000287C000-memory.dmp

Filesize
48KB

Download
memory/4080-9-0x0000000002860000-0x000000000286A000-memory.dmp

Filesize
40KB

Download
memory/4080-7-0x0000000000F80000-0x0000000000F8A000-memory.dmp

Filesize
40KB

Download
memory/4080-6-0x0000000002850000-0x000000000285C000-memory.dmp

Filesize
48KB

Download
memory/4080-11-0x0000000002890000-0x000000000289C000-memory.dmp

Filesize
48KB

Download
memory/4080-4-0x0000000000F40000-0x0000000000F50000-memory.dmp

Filesize
64KB

Download
memory/4080-3-0x0000000000F30000-0x0000000000F40000-memory.dmp

Filesize
64KB

Download
memory/4080-2-0x00007FFFA5FC0000-0x00007FFFA6A81000-memory.dmp

Filesize
10.8MB

Download
memory/4080-141-0x00007FFFA5FC0000-0x00007FFFA6A81000-memory.dmp

Filesize
10.8MB

Download
memory/4080-1-0x0000000000680000-0x0000000000774000-memory.dmp

Filesize
976KB

Download
memory/4236-146-0x0000000000B10000-0x0000000000C04000-memory.dmp

Filesize
976KB

Download