dcrat | d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 01:53

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General

Target
d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Size 2.4MB
Sample240625-cba93svapd
SHA256 d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502
MD5 4374a991ab0f4dadc519b8c8a5067018
SHA1 6a9ec055f7877839f7fd2f432bfc34ed8c222672
SHA512 0385a60d8e0bd1aa09a0c2c5a6f4e345ed72c764c22b28668f1a7a4e0dd6f8d22bbce3645e2849774154389495cc59ae74eead5689e698a23c157612519bdd36
SSDEEP 49152:LIV2T+yaiwQyEj/t47JYvoX/GHAWTYJX4IqdkOHAJOebnD:cVM+yJwnOI/GHA+YizNgpLD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dcrat evasion infostealer 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

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	2724	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	436	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2112	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3772	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3016	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4328	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2440	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2844	4936	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2152	4936	schtasks.exe	82

UAC bypass 3 TTPs 27 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"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/4088-1-0x00000000002A0000-0x0000000000512000-memory.dmp	dcrat
behavioral2/files/0x00070000000233de-28.dat	dcrat

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral2/memory/4088-6-0x0000000002670000-0x000000000267A000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Checks computer location settings 2 TTPs 8 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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	smss.exe

Executes dropped EXE 8 IoCs

pid	Process
456	smss.exe
4280	smss.exe
2512	smss.exe
2572	smss.exe
412	smss.exe
1572	smss.exe
4944	smss.exe
2820	smss.exe

Checks whether UAC is enabled 1 TTPs 18 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
18	pastebin.com
19	pastebin.com
6	pastebin.com
12	pastebin.com
16	pastebin.com
17	pastebin.com

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Adobe\Acrobat\RuntimeBroker.exe	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
File created	C:\Program Files (x86)\Common Files\Adobe\Acrobat\9e8d7a4ca61bd9	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
File created	C:\Program Files\Windows Security\dllhost.exe	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
File created	C:\Program Files\Windows Security\5940a34987c991	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
File created	C:\Program Files (x86)\Common Files\Adobe\Acrobat\RuntimeBroker.exe	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe

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

System Information Discovery
T1082

Modifies registry class 8 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000_Classes\Local Settings	smss.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
3772	schtasks.exe
4328	schtasks.exe
2724	schtasks.exe
436	schtasks.exe
2112	schtasks.exe
2152	schtasks.exe
3016	schtasks.exe
2440	schtasks.exe
2844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4088	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
4088	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
4088	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
456	smss.exe
4280	smss.exe
2512	smss.exe
2572	smss.exe
412	smss.exe
1572	smss.exe
4944	smss.exe
2820	smss.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4088	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Token: SeDebugPrivilege	456	smss.exe
Token: SeDebugPrivilege	4280	smss.exe
Token: SeDebugPrivilege	2512	smss.exe
Token: SeDebugPrivilege	2572	smss.exe
Token: SeDebugPrivilege	412	smss.exe
Token: SeDebugPrivilege	1572	smss.exe
Token: SeDebugPrivilege	4944	smss.exe
Token: SeDebugPrivilege	2820	smss.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 4504	4088	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe	92
PID 4088 wrote to memory of 4504	4088	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe	92
PID 4504 wrote to memory of 1960	4504	cmd.exe	94
PID 4504 wrote to memory of 1960	4504	cmd.exe	94
PID 4504 wrote to memory of 456	4504	cmd.exe	95
PID 4504 wrote to memory of 456	4504	cmd.exe	95
PID 456 wrote to memory of 1560	456	smss.exe	96
PID 456 wrote to memory of 1560	456	smss.exe	96
PID 1560 wrote to memory of 5064	1560	cmd.exe	98
PID 1560 wrote to memory of 5064	1560	cmd.exe	98
PID 1560 wrote to memory of 4280	1560	cmd.exe	100
PID 1560 wrote to memory of 4280	1560	cmd.exe	100
PID 4280 wrote to memory of 896	4280	smss.exe	101
PID 4280 wrote to memory of 896	4280	smss.exe	101
PID 896 wrote to memory of 432	896	cmd.exe	103
PID 896 wrote to memory of 432	896	cmd.exe	103
PID 896 wrote to memory of 2512	896	cmd.exe	108
PID 896 wrote to memory of 2512	896	cmd.exe	108
PID 2512 wrote to memory of 4584	2512	smss.exe	110
PID 2512 wrote to memory of 4584	2512	smss.exe	110
PID 4584 wrote to memory of 404	4584	cmd.exe	112
PID 4584 wrote to memory of 404	4584	cmd.exe	112
PID 4584 wrote to memory of 2572	4584	cmd.exe	113
PID 4584 wrote to memory of 2572	4584	cmd.exe	113
PID 2572 wrote to memory of 4128	2572	smss.exe	114
PID 2572 wrote to memory of 4128	2572	smss.exe	114
PID 4128 wrote to memory of 2128	4128	cmd.exe	116
PID 4128 wrote to memory of 2128	4128	cmd.exe	116
PID 4128 wrote to memory of 412	4128	cmd.exe	117
PID 4128 wrote to memory of 412	4128	cmd.exe	117
PID 412 wrote to memory of 4628	412	smss.exe	118
PID 412 wrote to memory of 4628	412	smss.exe	118
PID 4628 wrote to memory of 4684	4628	cmd.exe	120
PID 4628 wrote to memory of 4684	4628	cmd.exe	120
PID 4628 wrote to memory of 1572	4628	cmd.exe	121
PID 4628 wrote to memory of 1572	4628	cmd.exe	121
PID 1572 wrote to memory of 4872	1572	smss.exe	122
PID 1572 wrote to memory of 4872	1572	smss.exe	122
PID 4872 wrote to memory of 4940	4872	cmd.exe	124
PID 4872 wrote to memory of 4940	4872	cmd.exe	124
PID 4872 wrote to memory of 4944	4872	cmd.exe	125
PID 4872 wrote to memory of 4944	4872	cmd.exe	125
PID 4944 wrote to memory of 2460	4944	smss.exe	126
PID 4944 wrote to memory of 2460	4944	smss.exe	126
PID 2460 wrote to memory of 3528	2460	cmd.exe	128
PID 2460 wrote to memory of 3528	2460	cmd.exe	128
PID 2460 wrote to memory of 2820	2460	cmd.exe	129
PID 2460 wrote to memory of 2820	2460	cmd.exe	129

System policy modification 1 TTPs 27 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	smss.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	smss.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\d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe
"C:\Users\Admin\AppData\Local\Temp\d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502.exe"
1⤵
- UAC bypass
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4088
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\mCxoCI6GGO.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4504
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:1960
- - C:\Recovery\WindowsRE\smss.exe
    "C:\Recovery\WindowsRE\smss.exe"
    3⤵
    - UAC bypass
    - Checks computer location settings
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - System policy modification
    PID:456
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\9Z120WfzwF.bat"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1560
    - - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        5⤵
        
        PID:5064
    - - C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        5⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:4280
      - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\AKY6NrPTox.bat"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:896
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        7⤵
        
        PID:432
        
        C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        7⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:2512
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\M53DwaTFc6.bat"
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:4584
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        9⤵
        
        PID:404
        
        C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        9⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:2572
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\hlBWXN5z7R.bat"
        10⤵
        Suspicious use of WriteProcessMemory
        
        PID:4128
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        11⤵
        
        PID:2128
        
        C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        11⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:412
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\QHkN6qNcbm.bat"
        12⤵
        Suspicious use of WriteProcessMemory
        
        PID:4628
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        13⤵
        
        PID:4684
        
        C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        13⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:1572
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\IJ9EkrtYDM.bat"
        14⤵
        Suspicious use of WriteProcessMemory
        
        PID:4872
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        15⤵
        
        PID:4940
        
        C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        15⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:4944
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\yTtrehocny.bat"
        16⤵
        Suspicious use of WriteProcessMemory
        
        PID:2460
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        17⤵
        
        PID:3528
        
        C:\Recovery\WindowsRE\smss.exe
        
        "C:\Recovery\WindowsRE\smss.exe"
        17⤵
        UAC bypass
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:2820

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Common Files\Adobe\Acrobat\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2724

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Adobe\Acrobat\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:436

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Common Files\Adobe\Acrobat\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2112

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\smss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3772

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3016

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4328

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Security\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2440

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files\Windows Security\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2844

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Security\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

smss.exe

Path C:\Recovery\WindowsRE\smss.exe
Size 2.4MB
SHA256 d1995d6d75da8ad99eb04af2689e9601e54d23abb3c90a2f6f3309cd7fcca502
MD5 4374a991ab0f4dadc519b8c8a5067018
SHA1 6a9ec055f7877839f7fd2f432bfc34ed8c222672
SHA512 0385a60d8e0bd1aa09a0c2c5a6f4e345ed72c764c22b28668f1a7a4e0dd6f8d22bbce3645e2849774154389495cc59ae74eead5689e698a23c157612519bdd36
SSDEEP 49152:LIV2T+yaiwQyEj/t47JYvoX/GHAWTYJX4IqdkOHAJOebnD:cVM+yJwnOI/GHA+YizNgpLD
MD5 SHA1 SHA512 SSDEEP

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smss.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\smss.exe.log
Size 1KB
SHA256 414659decfd237dde09625a49811e03b5b30ee06ee2ee97ea8bcfac394d281fd
MD5 4a667f150a4d1d02f53a9f24d89d53d1
SHA1 306e125c9edce66f28fdb63e6c4ca5c9ad6e8c97
SHA512 4edd8e73ce03488a6d92750a782cd4042fbb54a5b3f8d8ba3ea227fda0653c2cd84f0c5d64976c7cdc1f518a2fdc8ff10e2a015ec7acf3cd01b0d62bc98542d8
MD5 SHA1 SHA512

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9Z120WfzwF.bat

Path C:\Users\Admin\AppData\Local\Temp\9Z120WfzwF.bat
Size 195B
SHA256 2755751075e068f9509125f89e96fa71cef7730b677fc458515afb37b39f0808
MD5 7504d30d9bcf8910fce3764ac7c92d60
SHA1 a104f55a05ea3e9244973184c00b6f22ff142f07
SHA512 acf78a65390092b6bf7a3b8076e70eb4b0546f6ce1b0bdf37e6bf50df1046ec3680d3b12ebb86da098bcd862de4b36c754680d14142575453186ec6d931cff6b
MD5 SHA1 SHA512

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AKY6NrPTox.bat

Path C:\Users\Admin\AppData\Local\Temp\AKY6NrPTox.bat
Size 195B
SHA256 59398142b59940de5379f62ca4996f2a3c9db855ce43da453b45938efa6a8ced
MD5 b5587a99f20d690460c37ad0c02f0920
SHA1 c9bd552d652e6f25375d07a5b15a5c1b3e85d23a
SHA512 08fc702129faefd47f90b807669a0ec84beb97af172c186850f683b4a83aa5e53dac22621b3671d551eac4caaee92f7d0f584e31ebfddd44c7820e3dd9196841
MD5 SHA1 SHA512

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IJ9EkrtYDM.bat

Path C:\Users\Admin\AppData\Local\Temp\IJ9EkrtYDM.bat
Size 195B
SHA256 5642b633edd022523642bd58f5951e087278248bbfbebaf28d56c0c7cbc1f0b3
MD5 9e7e0a9a8635478014893db6a22104c4
SHA1 23bfa9c6b6431bde31814ec6bd4e8b162cd37141
SHA512 b0d8ced5d0f7dadf2baf78252a5d2029d82a53f7679b76c6904307473de2ae289117edefdc3f5db8d5453626200c114fdaa384e96ffe670b2d4b7a7a0ab62e1e
MD5 SHA1 SHA512

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M53DwaTFc6.bat

Path C:\Users\Admin\AppData\Local\Temp\M53DwaTFc6.bat
Size 195B
SHA256 0eff535a5663639bc711cce1b43dbf4501938c4d4a09b872172145ecdaf542a8
MD5 406a0e156175c7222d467ff37b53229b
SHA1 ce5214999431c46f0007355329fa4080ec46f75e
SHA512 52e38ac522a36770d99de7baf21d34ccfc4877eed1a8b127aeefca7266b14c77c0e5b0c3996f1ff6313c8d9adc4b5646785dd36f60c37ed44ea6d85291531641
MD5 SHA1 SHA512

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QHkN6qNcbm.bat

Path C:\Users\Admin\AppData\Local\Temp\QHkN6qNcbm.bat
Size 195B
SHA256 93a245f4f9cf324c289d3c4f061ae66e5cc0060f988afb7a0f410114a03faf04
MD5 a59d64ec8843dc974e0387e75ad7e210
SHA1 e42ae45e1ca017977bc00edb103eba2795f47c14
SHA512 747dcee19212d9201ff1b0a9d658af9251643b4ee2ea4b74daf11939761870096820402f8b5fbf4063c566c983c12efd7bf3f7f1fe929ef02ed5f1dc03e74de2
MD5 SHA1 SHA512

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hlBWXN5z7R.bat

Path C:\Users\Admin\AppData\Local\Temp\hlBWXN5z7R.bat
Size 195B
SHA256 3ae49b9df982b796f133377c38d0ec4268c03a4c0d4ae260825f8cbba05de983
MD5 8ff1a445f26dc5e784cce9888b5b66ef
SHA1 0a35bc33915de0914a5be3f55ffd0f5061f33f73
SHA512 0dd3f6d7a5e092ad636c6564c48c71facb702146f91fbf9f0a7cfbb6dc908e0529588fc1d017e61a5daed5ed9a39892b5f13871159f761af1b812c8fafeb2393
MD5 SHA1 SHA512

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mCxoCI6GGO.bat

Path C:\Users\Admin\AppData\Local\Temp\mCxoCI6GGO.bat
Size 195B
SHA256 a0a1781050fc411552c6acd2e7ea156fbb9ac4e32e02440db9bacd47ea5db0c5
MD5 0081ab45c17ce26f2bbed499f34f5ba0
SHA1 8da053af4bd79cc2e9b2248d7361f8ead19f94b4
SHA512 983bff3f29fd67c4cab4787f1235f6f557ea3f51f2b07d3b09b6b099e2b2afbd82a99af283edff20b9d4edb41ebae3bec482ac6ef7f2e9b491bb1783cf9064b3
MD5 SHA1 SHA512

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yTtrehocny.bat

Path C:\Users\Admin\AppData\Local\Temp\yTtrehocny.bat
Size 195B
SHA256 cd997ba07e8a92357179d3e1341400309809d35fc33ad1a04165d8a1546cc2d7
MD5 3db41c3f01e49628c006a1756675a1f0
SHA1 b2a5011d03d8dcf9d89b543ba1223598ef14e970
SHA512 f93957a3af4674abf8ee6f422def8312095d5e269e86b7a4b4ae79e3c9bf80559413d8d2967ee0906d1f294bc2141a43235282fb5353067a4999d3ca3c2cec53
MD5 SHA1 SHA512

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memory/412-57-0x000000001D400000-0x000000001D456000-memory.dmp

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memory/456-30-0x000000001BF80000-0x000000001BF92000-memory.dmp

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memory/1572-68-0x000000001E590000-0x000000001E739000-memory.dmp

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memory/4088-7-0x0000000002680000-0x00000000026D6000-memory.dmp

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memory/4088-8-0x00000000026D0000-0x00000000026DC000-memory.dmp

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memory/4088-12-0x000000001B770000-0x000000001B77E000-memory.dmp

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memory/4088-13-0x000000001B790000-0x000000001B79C000-memory.dmp

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memory/4088-11-0x000000001B760000-0x000000001B768000-memory.dmp

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memory/4088-10-0x000000001C060000-0x000000001C588000-memory.dmp

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memory/4088-9-0x000000001B730000-0x000000001B742000-memory.dmp

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memory/4088-26-0x00007FFE14C70000-0x00007FFE15731000-memory.dmp

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memory/4088-0-0x00007FFE14C73000-0x00007FFE14C75000-memory.dmp

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memory/4088-5-0x0000000002650000-0x0000000002666000-memory.dmp

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memory/4088-6-0x0000000002670000-0x000000000267A000-memory.dmp

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memory/4088-4-0x000000001B6E0000-0x000000001B730000-memory.dmp

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memory/4088-3-0x0000000000D30000-0x0000000000D4C000-memory.dmp

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memory/4088-2-0x00007FFE14C70000-0x00007FFE15731000-memory.dmp

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memory/4088-1-0x00000000002A0000-0x0000000000512000-memory.dmp

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