dcrat | 57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a

General

Target

57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Size

783KB
MD5

678f3b5fe3ba32b044538facd3576d18
SHA1

4f67bfe0d9caa57d28394158147a2abbb6d44a95
SHA256

57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a
SHA512

75a028a56d24e88e9dc21d7e35639225e6207f634797f33c3c9f31f7b39b76b16e5feca1fe0c7a4030e66e587a8e58487712be89add55818fbf9019c887d17e8
SSDEEP

12288:mqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqKn:m+OQbpbgsFdAyQvzSqaq8qi

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

Process spawned unexpected child process 11 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	4056	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3564	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4620	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2892	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1380	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1548	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1820	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4800	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	996	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3924	4852	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2260	4852	schtasks.exe	82

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\ConsentPromptBehaviorAdmin = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/4988-1-0x00000000006F0000-0x00000000007BA000-memory.dmp	dcrat
behavioral2/files/0x000c000000023b92-37.dat	dcrat

Checks computer location settings 2 TTPs 2 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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

Executes dropped EXE 2 IoCs

pid	Process
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
2264	explorer.exe

Adds Run key to start application 2 TTPs 11 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\sysmon = "\"C:\\Windows\\mib\\sysmon.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\WindowsUpdate\\explorer.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\sdshext\\RuntimeBroker.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\ConstraintIndex.Search\\RuntimeBroker.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Program Files\\Microsoft Office 15\\ClientX64\\explorer.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\PrintWorkflowProxy\\lsass.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\System32\\KBDCHER\\dllhost.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\KBDA1\\RuntimeBroker.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\System32\\dmprocessxmlfiltered\\fontdrvhost.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Documents and Settings\\dllhost.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\ProgramData\\Desktop\\spoolsv.exe\""	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.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"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

Drops file in System32 directory 20 IoCs

description	ioc	Process
File created	C:\Windows\System32\KBDCHER\dllhost.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\KBDCHER\5940a34987c99120d96dace90a3f93f329dcad63	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\ConstraintIndex.Search\9e8d7a4ca61bd92aff00cc37a7a4d62a2cac998d	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\PrintWorkflowProxy\lsass.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\sdshext\RuntimeBroker.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\dmprocessxmlfiltered\fontdrvhost.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\dmprocessxmlfiltered\RCX9732.tmp	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\PrintWorkflowProxy\lsass.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\sdshext\RuntimeBroker.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\sdshext\9e8d7a4ca61bd92aff00cc37a7a4d62a2cac998d	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\ConstraintIndex.Search\RuntimeBroker.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\KBDA1\9e8d7a4ca61bd92aff00cc37a7a4d62a2cac998d	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\dmprocessxmlfiltered\5b884080fd4f94e2695da25c503f9e33b9605b83	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\KBDCHER\dllhost.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\dmprocessxmlfiltered\fontdrvhost.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\PrintWorkflowProxy\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\KBDA1\RuntimeBroker.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\ConstraintIndex.Search\RuntimeBroker.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\System32\KBDA1\RuntimeBroker.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\System32\KBDA1\RCX952D.tmp	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office 15\ClientX64\explorer.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Program Files\Microsoft Office 15\ClientX64\7a0fd90576e08807bde2cc57bcf9854bbce05fe3	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\explorer.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\mib\121e5b5079f7c0e46d90f99b3864022518bbbda9	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\WindowsUpdate\explorer.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\WindowsUpdate\7a0fd90576e08807bde2cc57bcf9854bbce05fe3	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\mib\RCX9329.tmp	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\WindowsUpdate\RCX99B4.tmp	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\WindowsUpdate\explorer.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File created	C:\Windows\mib\sysmon.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
File opened for modification	C:\Windows\mib\sysmon.exe	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 11 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3924	schtasks.exe
4620	schtasks.exe
2892	schtasks.exe
1380	schtasks.exe
1548	schtasks.exe
1820	schtasks.exe
4800	schtasks.exe
4056	schtasks.exe
3564	schtasks.exe
996	schtasks.exe
2260	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Token: SeDebugPrivilege	4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Token: SeDebugPrivilege	2264	explorer.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 4596	4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe	87
PID 4988 wrote to memory of 4596	4988	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe	87
PID 4596 wrote to memory of 2264	4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe	96
PID 4596 wrote to memory of 2264	4596	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe	96

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"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.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\57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
"C:\Users\Admin\AppData\Local\Temp\57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe"
1⤵
- 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 Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4988
- C:\Users\Admin\AppData\Local\Temp\57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe
  "C:\Users\Admin\AppData\Local\Temp\57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe"
  2⤵
  - UAC bypass
  - Checks computer location settings
  - Executes dropped EXE
  - 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:4596
- - C:\Program Files\Microsoft Office 15\ClientX64\explorer.exe
    "C:\Program Files\Microsoft Office 15\ClientX64\explorer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2264

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Windows\mib\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4056

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\KBDA1\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3564

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\dmprocessxmlfiltered\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4620

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\WindowsUpdate\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2892

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Documents and Settings\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1380

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\ProgramData\Desktop\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1548

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1820

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\PrintWorkflowProxy\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4800

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\sdshext\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:996

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\System32\KBDCHER\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3924

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\ConstraintIndex.Search\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a.exe.log

Filesize
1KB

MD5
b7c0c43fc7804baaa7dc87152cdc9554

SHA1
1bab62bd56af745678d4e967d91e1ccfdeed4038

SHA256
46386a61f3aaf1b1c2e6efc9fc7e9e9ff16cd13ae58b8d856835771fedb6d457

SHA512
9fda3dd00a3406137e0113f13f78e77b20a76512b35820d38df696842cbbf2e2ebabfb99a3846c9637ecb54af858ec1551521187e379872973006426a253f769

Download Submit
C:\Windows\mib\sysmon.exe

Filesize
783KB

MD5
678f3b5fe3ba32b044538facd3576d18

SHA1
4f67bfe0d9caa57d28394158147a2abbb6d44a95

SHA256
57feb30bfa52e12db717f765271f337c2fb9b9f1799b7c6a6c2e9123c9d2b45a

SHA512
75a028a56d24e88e9dc21d7e35639225e6207f634797f33c3c9f31f7b39b76b16e5feca1fe0c7a4030e66e587a8e58487712be89add55818fbf9019c887d17e8

Download Submit
memory/4988-18-0x000000001B500000-0x000000001B508000-memory.dmp

Filesize
32KB

Download
memory/4988-22-0x000000001B580000-0x000000001B588000-memory.dmp

Filesize
32KB

Download
memory/4988-7-0x0000000002850000-0x000000000285C000-memory.dmp

Filesize
48KB

Download
memory/4988-6-0x0000000002870000-0x0000000002878000-memory.dmp

Filesize
32KB

Download
memory/4988-4-0x0000000002820000-0x0000000002828000-memory.dmp

Filesize
32KB

Download
memory/4988-3-0x0000000002810000-0x0000000002818000-memory.dmp

Filesize
32KB

Download
memory/4988-8-0x0000000002860000-0x000000000286A000-memory.dmp

Filesize
40KB

Download
memory/4988-9-0x000000001B3A0000-0x000000001B3AA000-memory.dmp

Filesize
40KB

Download
memory/4988-10-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/4988-11-0x00000000028B0000-0x00000000028B8000-memory.dmp

Filesize
32KB

Download
memory/4988-12-0x0000000002880000-0x0000000002888000-memory.dmp

Filesize
32KB

Download
memory/4988-13-0x00000000028A0000-0x00000000028A8000-memory.dmp

Filesize
32KB

Download
memory/4988-14-0x000000001B3B0000-0x000000001B3B8000-memory.dmp

Filesize
32KB

Download
memory/4988-17-0x000000001B4F0000-0x000000001B4F8000-memory.dmp

Filesize
32KB

Download
memory/4988-5-0x0000000002830000-0x0000000002840000-memory.dmp

Filesize
64KB

Download
memory/4988-0-0x00007FFB52293000-0x00007FFB52295000-memory.dmp

Filesize
8KB

Download
memory/4988-26-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download
memory/4988-19-0x000000001B550000-0x000000001B558000-memory.dmp

Filesize
32KB

Download
memory/4988-20-0x000000001B560000-0x000000001B568000-memory.dmp

Filesize
32KB

Download
memory/4988-21-0x000000001B570000-0x000000001B57C000-memory.dmp

Filesize
48KB

Download
memory/4988-16-0x000000001B4E0000-0x000000001B4E8000-memory.dmp

Filesize
32KB

Download
memory/4988-25-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download
memory/4988-15-0x000000001B3C0000-0x000000001B3C8000-memory.dmp

Filesize
32KB

Download
memory/4988-36-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download
memory/4988-2-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download
memory/4988-43-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download
memory/4988-64-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download
memory/4988-1-0x00000000006F0000-0x00000000007BA000-memory.dmp

Filesize
808KB

Download
memory/4988-69-0x000000001E030000-0x000000001E0AD000-memory.dmp

Filesize
500KB

Download
memory/4988-70-0x00007FFB52290000-0x00007FFB52D51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads