dcrat | 8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc

Analysis

max time kernel
136s
max time network
149s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28-08-2024 01:57

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General

Target

8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe
Size

1.5MB
MD5

31f61e9c68256b4cc089b3703c0e2039
SHA1

5ed8cecacc5e6165d43ee91787f72846d2e8ad01
SHA256

8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc
SHA512

ae48468132212e4756864fe7ce22d55c35d53cadd482aebabd62ec9d724ea3786879d9364563613140a43fa6c63a6c5cc1ee1775e4e0e9977aee3b748d8a6df1
SSDEEP

24576:yuDXTIGaPhEYzUzA0bOvbKAO1WMbkiSfLAo9Ffze20S4OIsAMWlXl9h2DvpfsTCu:1Djlabwz9Sv61kiQKvS4OUMI4hfaD

Score

10^/10

dcrat umbral discovery evasion infostealer persistence rat stealer trojan

Malware Config

Signatures

DcRat 19 IoCs

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

rat infostealer dcrat

description	ioc	pid	Process
		2944	schtasks.exe
		1940	schtasks.exe
		1700	schtasks.exe
		1304	schtasks.exe
		2428	schtasks.exe
		2696	schtasks.exe
		1236	schtasks.exe
		532	schtasks.exe
		1868	schtasks.exe
		2896	schtasks.exe
		2912	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language		ratgergedrghi.exe
		600	schtasks.exe
		1248	schtasks.exe
		324	schtasks.exe
		1588	schtasks.exe
		2880	schtasks.exe
		2188	schtasks.exe
		992	schtasks.exe

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000120fe-6.dat	family_umbral
behavioral1/memory/1704-29-0x0000000001270000-0x00000000012B0000-memory.dmp	family_umbral

Modifies WinLogon for persistence 2 TTPs 6 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:\\Users\\Public\\spoolsv.exe\", \"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\", \"C:\\Windows\\addins\\explorer.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\spoolsv.exe\", \"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\", \"C:\\Windows\\addins\\explorer.exe\", \"C:\\MSOCache\\All Users\\{90140000-00A1-0409-0000-0000000FF1CE}-C\\services.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\spoolsv.exe\", \"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\", \"C:\\Windows\\addins\\explorer.exe\", \"C:\\MSOCache\\All Users\\{90140000-00A1-0409-0000-0000000FF1CE}-C\\services.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\csrss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\spoolsv.exe\", \"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\", \"C:\\Windows\\addins\\explorer.exe\", \"C:\\MSOCache\\All Users\\{90140000-00A1-0409-0000-0000000FF1CE}-C\\services.exe\", \"C:\\Program Files\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\MSOCache\\All Users\\{90140000-0011-0000-0000-0000000FF1CE}-C\\Idle.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\spoolsv.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\spoolsv.exe\", \"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\""	Surrogatereviewsession.exe

Process spawned unexpected child process 18 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	324	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1236	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1940	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	532	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1700	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	600	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1588	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1248	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1304	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1868	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2896	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2880	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2188	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2428	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	992	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2696	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2944	788	schtasks.exe	36
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2912	788	schtasks.exe	36

UAC bypass 3 TTPs 6 IoCs

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

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

DCRat payload 4 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/files/0x00080000000190d2-15.dat	dcrat
behavioral1/files/0x0006000000019248-32.dat	dcrat
behavioral1/memory/2612-36-0x0000000000A00000-0x0000000000B42000-memory.dmp	dcrat
behavioral1/memory/956-64-0x0000000000E60000-0x0000000000FA2000-memory.dmp	dcrat

Disables Task Manager via registry modification
evasion

Executes dropped EXE 4 IoCs

pid	Process
1704	stealqqgwrffs.exe
3064	ratgergedrghi.exe
2612	Surrogatereviewsession.exe
956	Idle.exe

Loads dropped DLL 2 IoCs

pid	Process
2656	cmd.exe
2656	cmd.exe

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\addins\\explorer.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Reference Assemblies\\Microsoft\\csrss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Reference Assemblies\\Microsoft\\csrss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\MSOCache\\All Users\\{90140000-0011-0000-0000-0000000FF1CE}-C\\Idle.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Users\\Public\\spoolsv.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\7da403a2-3a8c-11ef-b191-d685e2345d05\\Idle.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\addins\\explorer.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\MSOCache\\All Users\\{90140000-00A1-0409-0000-0000000FF1CE}-C\\services.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\MSOCache\\All Users\\{90140000-00A1-0409-0000-0000000FF1CE}-C\\services.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\MSOCache\\All Users\\{90140000-0011-0000-0000-0000000FF1CE}-C\\Idle.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Users\\Public\\spoolsv.exe\""	Surrogatereviewsession.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
16	ip-api.com

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Reference Assemblies\Microsoft\csrss.exe	Surrogatereviewsession.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\886983d96e3d3e	Surrogatereviewsession.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\addins\explorer.exe	Surrogatereviewsession.exe
File created	C:\Windows\addins\7a0fd90576e088	Surrogatereviewsession.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 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	ratgergedrghi.exe
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

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3060	reg.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
324	schtasks.exe
1868	schtasks.exe
2428	schtasks.exe
2912	schtasks.exe
1940	schtasks.exe
532	schtasks.exe
992	schtasks.exe
1700	schtasks.exe
600	schtasks.exe
1248	schtasks.exe
2896	schtasks.exe
2880	schtasks.exe
2188	schtasks.exe
1236	schtasks.exe
1588	schtasks.exe
1304	schtasks.exe
2696	schtasks.exe
2944	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2612	Surrogatereviewsession.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe
956	Idle.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	stealqqgwrffs.exe
Token: SeDebugPrivilege	2612	Surrogatereviewsession.exe
Token: SeDebugPrivilege	956	Idle.exe
Token: SeIncreaseQuotaPrivilege	2756	wmic.exe
Token: SeSecurityPrivilege	2756	wmic.exe
Token: SeTakeOwnershipPrivilege	2756	wmic.exe
Token: SeLoadDriverPrivilege	2756	wmic.exe
Token: SeSystemProfilePrivilege	2756	wmic.exe
Token: SeSystemtimePrivilege	2756	wmic.exe
Token: SeProfSingleProcessPrivilege	2756	wmic.exe
Token: SeIncBasePriorityPrivilege	2756	wmic.exe
Token: SeCreatePagefilePrivilege	2756	wmic.exe
Token: SeBackupPrivilege	2756	wmic.exe
Token: SeRestorePrivilege	2756	wmic.exe
Token: SeShutdownPrivilege	2756	wmic.exe
Token: SeDebugPrivilege	2756	wmic.exe
Token: SeSystemEnvironmentPrivilege	2756	wmic.exe
Token: SeRemoteShutdownPrivilege	2756	wmic.exe
Token: SeUndockPrivilege	2756	wmic.exe
Token: SeManageVolumePrivilege	2756	wmic.exe
Token: 33	2756	wmic.exe
Token: 34	2756	wmic.exe
Token: 35	2756	wmic.exe
Token: SeIncreaseQuotaPrivilege	2756	wmic.exe
Token: SeSecurityPrivilege	2756	wmic.exe
Token: SeTakeOwnershipPrivilege	2756	wmic.exe
Token: SeLoadDriverPrivilege	2756	wmic.exe
Token: SeSystemProfilePrivilege	2756	wmic.exe
Token: SeSystemtimePrivilege	2756	wmic.exe
Token: SeProfSingleProcessPrivilege	2756	wmic.exe
Token: SeIncBasePriorityPrivilege	2756	wmic.exe
Token: SeCreatePagefilePrivilege	2756	wmic.exe
Token: SeBackupPrivilege	2756	wmic.exe
Token: SeRestorePrivilege	2756	wmic.exe
Token: SeShutdownPrivilege	2756	wmic.exe
Token: SeDebugPrivilege	2756	wmic.exe
Token: SeSystemEnvironmentPrivilege	2756	wmic.exe
Token: SeRemoteShutdownPrivilege	2756	wmic.exe
Token: SeUndockPrivilege	2756	wmic.exe
Token: SeManageVolumePrivilege	2756	wmic.exe
Token: 33	2756	wmic.exe
Token: 34	2756	wmic.exe
Token: 35	2756	wmic.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 1704	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	30
PID 2068 wrote to memory of 1704	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	30
PID 2068 wrote to memory of 1704	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	30
PID 2068 wrote to memory of 3064	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	31
PID 2068 wrote to memory of 3064	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	31
PID 2068 wrote to memory of 3064	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	31
PID 2068 wrote to memory of 3064	2068	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	31
PID 3064 wrote to memory of 2928	3064	ratgergedrghi.exe	32
PID 3064 wrote to memory of 2928	3064	ratgergedrghi.exe	32
PID 3064 wrote to memory of 2928	3064	ratgergedrghi.exe	32
PID 3064 wrote to memory of 2928	3064	ratgergedrghi.exe	32
PID 2928 wrote to memory of 2656	2928	WScript.exe	33
PID 2928 wrote to memory of 2656	2928	WScript.exe	33
PID 2928 wrote to memory of 2656	2928	WScript.exe	33
PID 2928 wrote to memory of 2656	2928	WScript.exe	33
PID 2656 wrote to memory of 2612	2656	cmd.exe	35
PID 2656 wrote to memory of 2612	2656	cmd.exe	35
PID 2656 wrote to memory of 2612	2656	cmd.exe	35
PID 2656 wrote to memory of 2612	2656	cmd.exe	35
PID 2612 wrote to memory of 1108	2612	Surrogatereviewsession.exe	55
PID 2612 wrote to memory of 1108	2612	Surrogatereviewsession.exe	55
PID 2612 wrote to memory of 1108	2612	Surrogatereviewsession.exe	55
PID 2656 wrote to memory of 3060	2656	cmd.exe	57
PID 2656 wrote to memory of 3060	2656	cmd.exe	57
PID 2656 wrote to memory of 3060	2656	cmd.exe	57
PID 2656 wrote to memory of 3060	2656	cmd.exe	57
PID 1108 wrote to memory of 2940	1108	cmd.exe	58
PID 1108 wrote to memory of 2940	1108	cmd.exe	58
PID 1108 wrote to memory of 2940	1108	cmd.exe	58
PID 1108 wrote to memory of 956	1108	cmd.exe	59
PID 1108 wrote to memory of 956	1108	cmd.exe	59
PID 1108 wrote to memory of 956	1108	cmd.exe	59
PID 1704 wrote to memory of 2756	1704	stealqqgwrffs.exe	61
PID 1704 wrote to memory of 2756	1704	stealqqgwrffs.exe	61
PID 1704 wrote to memory of 2756	1704	stealqqgwrffs.exe	61

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Surrogatereviewsession.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Idle.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Idle.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Idle.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Surrogatereviewsession.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Surrogatereviewsession.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\8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe
"C:\Users\Admin\AppData\Local\Temp\8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\stealqqgwrffs.exe
  "C:\Users\Admin\AppData\Local\Temp\stealqqgwrffs.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2756
- C:\Users\Admin\AppData\Local\Temp\ratgergedrghi.exe
  "C:\Users\Admin\AppData\Local\Temp\ratgergedrghi.exe"
  2⤵
  - DcRat
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\providerWinsessionruntimehost\Xt9KI1krEJFJGvttvIkhdsOgzo3.vbe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2928
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\providerWinsessionruntimehost\g3CEdDrA4txDO2RaU.bat" "
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2656
    - - C:\providerWinsessionruntimehost\Surrogatereviewsession.exe
        
        "C:\providerWinsessionruntimehost\Surrogatereviewsession.exe"
        5⤵
        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:2612
      - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\jgzc8Qt4RW.bat"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1108
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        7⤵
        
        PID:2940
        
        C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Idle.exe
        
        "C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Idle.exe"
        7⤵
        UAC bypass
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:956
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        5⤵
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:3060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Users\Public\spoolsv.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:324

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Users\Public\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1236

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Users\Public\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1940

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\Idle.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:532

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\Idle.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1700

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Recovery\7da403a2-3a8c-11ef-b191-d685e2345d05\Idle.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:600

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\Windows\addins\explorer.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1588

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\addins\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1248

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Windows\addins\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1304

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\services.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1868

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\services.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 "servicess" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-00A1-0409-0000-0000000FF1CE}-C\services.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files\Reference Assemblies\Microsoft\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2188

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2428

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files\Reference Assemblies\Microsoft\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:992

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Idle.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Idle.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2944

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Idle.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2912

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\jgzc8Qt4RW.bat

Filesize
236B

MD5
2ea3e1021482d0b1b8762c7fc10c92de

SHA1
3e546a3260e3fd67eca8f3d950e54601799f2b03

SHA256
ad6cfdfc3431d0f034786bf30e6342d4731b06a152f4c60480f5ecca149f4d73

SHA512
f818b55d627aef67dbc8de02a5993d7ccccf2cd57f40ac8de266c886ea235c8e1624845c343a0816cab93f1a9a81e5b9d551d41b70ec12c666020f0fc5abb268

Download Submit
C:\Users\Admin\AppData\Local\Temp\ratgergedrghi.exe

Filesize
1.5MB

MD5
260fd8b292d7acf337beab707e84604c

SHA1
1133c94c57883f8c5624837d51fb88ef220fab06

SHA256
6d7b8c65737968c2ba34d5c64bf2427a49b7b4c74b3d558cf64814c97ba88cfb

SHA512
f83a804b7ac3918bbe76cea264f7451f5682da26b71cfa67e4e66a3281bc6c1ea478db02d16c80b01f7191e157e644fb966c56c9035e800c42d9f3539fa682b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\stealqqgwrffs.exe

Filesize
230KB

MD5
96ee12b0a9e8e1f0b0f85da1b482fdcb

SHA1
28711afb99a8397ebf5a6cb629e3e20465c0fdfa

SHA256
253b05b6848e8a312b0a622d62d370d6dedf59f24fb52fca803234977880649b

SHA512
f9f0012cc0eec4fe176338cc17ea8f870660ea5db8a33cc5000348e3bcdf4067ef7192dc3ecb3b7a5ff271d97085ba1c66eb5e170d24faf3daaee2b504c1e411

Download Submit
C:\providerWinsessionruntimehost\Xt9KI1krEJFJGvttvIkhdsOgzo3.vbe

Filesize
223B

MD5
88ef9c38e649b66c4641665e74fce531

SHA1
1603bd91a66807a8c7095d0cbc64c9d3679e6780

SHA256
65455609bf7611ec4bd6f9fbc08a0835612e15562665349f67ae92b0287243c6

SHA512
a3cd4848553acc3a685b10adf3b801f5ec78e9e706c7e0d6f89425dd7c64f4809dfa5001ee7aec60abeb8e23043608a351bc9ca52b687f6082f4880158465f16

Download Submit
C:\providerWinsessionruntimehost\g3CEdDrA4txDO2RaU.bat

Filesize
173B

MD5
2c8e46086b87c611b970c172dcb48bc1

SHA1
c489d490655a5af55c7a9b33cf69a460093fc1ec

SHA256
c8aaa713c91dfae8607a468ce53adb457685e5b89127ea6a36625058fadc00ab

SHA512
e7e23ae1690897518083cf5a5d2a53ef6c9e9ce8d520deff8d69b091305c0cfcd2a84ebf6ecccc5ef81f9de97b8a70796d243ee7b002b6cd63966bc1f4602377

Download Submit
\providerWinsessionruntimehost\Surrogatereviewsession.exe

Filesize
1.2MB

MD5
6227db1487700389df5e1bd5c29e16b6

SHA1
68795a61f653f7b63fa5e2ebbbe1bc97aed3242f

SHA256
359ede2f634418bc23101b414c0b35139c1dbacd9a6b5ff152f0733c4a9bd3d0

SHA512
2668b4a6d18b3ee6b2961b7eea6c1de669ec8df9b679f2a5fb3041d9f469eba92b4bd1467ea7b8ec7fc1e914a6d6cb008dbbe67bf67cc41b05d1f1979b56eead

Download Submit
memory/956-64-0x0000000000E60000-0x0000000000FA2000-memory.dmp

Filesize
1.3MB

Download
memory/1704-29-0x0000000001270000-0x00000000012B0000-memory.dmp

Filesize
256KB

Download
memory/2612-38-0x0000000000470000-0x000000000048C000-memory.dmp

Filesize
112KB

Download
memory/2612-39-0x00000000003E0000-0x00000000003E8000-memory.dmp

Filesize
32KB

Download
memory/2612-40-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/2612-41-0x00000000004A0000-0x00000000004AC000-memory.dmp

Filesize
48KB

Download
memory/2612-42-0x00000000004B0000-0x00000000004B8000-memory.dmp

Filesize
32KB

Download
memory/2612-43-0x0000000000980000-0x000000000098C000-memory.dmp

Filesize
48KB

Download
memory/2612-44-0x0000000000960000-0x000000000096A000-memory.dmp

Filesize
40KB

Download
memory/2612-37-0x00000000003D0000-0x00000000003DE000-memory.dmp

Filesize
56KB

Download
memory/2612-36-0x0000000000A00000-0x0000000000B42000-memory.dmp

Filesize
1.3MB

Download