umbral | e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2024, 15:03

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General

Target
e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
Size 234KB
Sample240918-sfclpsxcqa
SHA256 e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec
MD5 4de282f3a3d77c0b217fa45c09454d22
SHA1 bdf07d339f21217ae5acfcce83bcc04ac1037134
SHA512 2b58af8a8b1ed2328c100dc9f7665e26c08c3b586079f736255003f3a1a503d6ba97a4040168c5da4d6998d0d2ed81735b74d73958e9baeef361d97559c701fa
SSDEEP 6144:1rQHIw0YRt+1SHkekkngPBJW8e1mhNax:1QP+2nfC0x
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3328-1-0x0000017C3CD00000-0x0000017C3CD40000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4548	powershell.exe
3668	powershell.exe
4940	powershell.exe
1440	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
20	discord.com
21	discord.com

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
7	ip-api.com

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4376	cmd.exe
3628	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5092	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3628	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
4548	powershell.exe
4548	powershell.exe
3668	powershell.exe
3668	powershell.exe
4940	powershell.exe
4940	powershell.exe
664	powershell.exe
664	powershell.exe
1440	powershell.exe
1440	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
Token: SeIncreaseQuotaPrivilege	2332	wmic.exe
Token: SeSecurityPrivilege	2332	wmic.exe
Token: SeTakeOwnershipPrivilege	2332	wmic.exe
Token: SeLoadDriverPrivilege	2332	wmic.exe
Token: SeSystemProfilePrivilege	2332	wmic.exe
Token: SeSystemtimePrivilege	2332	wmic.exe
Token: SeProfSingleProcessPrivilege	2332	wmic.exe
Token: SeIncBasePriorityPrivilege	2332	wmic.exe
Token: SeCreatePagefilePrivilege	2332	wmic.exe
Token: SeBackupPrivilege	2332	wmic.exe
Token: SeRestorePrivilege	2332	wmic.exe
Token: SeShutdownPrivilege	2332	wmic.exe
Token: SeDebugPrivilege	2332	wmic.exe
Token: SeSystemEnvironmentPrivilege	2332	wmic.exe
Token: SeRemoteShutdownPrivilege	2332	wmic.exe
Token: SeUndockPrivilege	2332	wmic.exe
Token: SeManageVolumePrivilege	2332	wmic.exe
Token: 33	2332	wmic.exe
Token: 34	2332	wmic.exe
Token: 35	2332	wmic.exe
Token: 36	2332	wmic.exe
Token: SeIncreaseQuotaPrivilege	2332	wmic.exe
Token: SeSecurityPrivilege	2332	wmic.exe
Token: SeTakeOwnershipPrivilege	2332	wmic.exe
Token: SeLoadDriverPrivilege	2332	wmic.exe
Token: SeSystemProfilePrivilege	2332	wmic.exe
Token: SeSystemtimePrivilege	2332	wmic.exe
Token: SeProfSingleProcessPrivilege	2332	wmic.exe
Token: SeIncBasePriorityPrivilege	2332	wmic.exe
Token: SeCreatePagefilePrivilege	2332	wmic.exe
Token: SeBackupPrivilege	2332	wmic.exe
Token: SeRestorePrivilege	2332	wmic.exe
Token: SeShutdownPrivilege	2332	wmic.exe
Token: SeDebugPrivilege	2332	wmic.exe
Token: SeSystemEnvironmentPrivilege	2332	wmic.exe
Token: SeRemoteShutdownPrivilege	2332	wmic.exe
Token: SeUndockPrivilege	2332	wmic.exe
Token: SeManageVolumePrivilege	2332	wmic.exe
Token: 33	2332	wmic.exe
Token: 34	2332	wmic.exe
Token: 35	2332	wmic.exe
Token: 36	2332	wmic.exe
Token: SeDebugPrivilege	4548	powershell.exe
Token: SeDebugPrivilege	3668	powershell.exe
Token: SeDebugPrivilege	4940	powershell.exe
Token: SeDebugPrivilege	664	powershell.exe
Token: SeIncreaseQuotaPrivilege	880	wmic.exe
Token: SeSecurityPrivilege	880	wmic.exe
Token: SeTakeOwnershipPrivilege	880	wmic.exe
Token: SeLoadDriverPrivilege	880	wmic.exe
Token: SeSystemProfilePrivilege	880	wmic.exe
Token: SeSystemtimePrivilege	880	wmic.exe
Token: SeProfSingleProcessPrivilege	880	wmic.exe
Token: SeIncBasePriorityPrivilege	880	wmic.exe
Token: SeCreatePagefilePrivilege	880	wmic.exe
Token: SeBackupPrivilege	880	wmic.exe
Token: SeRestorePrivilege	880	wmic.exe
Token: SeShutdownPrivilege	880	wmic.exe
Token: SeDebugPrivilege	880	wmic.exe
Token: SeSystemEnvironmentPrivilege	880	wmic.exe
Token: SeRemoteShutdownPrivilege	880	wmic.exe
Token: SeUndockPrivilege	880	wmic.exe
Token: SeManageVolumePrivilege	880	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 2332	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	82
PID 3328 wrote to memory of 2332	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	82
PID 3328 wrote to memory of 212	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	85
PID 3328 wrote to memory of 212	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	85
PID 3328 wrote to memory of 4548	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	87
PID 3328 wrote to memory of 4548	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	87
PID 3328 wrote to memory of 3668	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	89
PID 3328 wrote to memory of 3668	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	89
PID 3328 wrote to memory of 4940	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	91
PID 3328 wrote to memory of 4940	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	91
PID 3328 wrote to memory of 664	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	93
PID 3328 wrote to memory of 664	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	93
PID 3328 wrote to memory of 880	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	97
PID 3328 wrote to memory of 880	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	97
PID 3328 wrote to memory of 1676	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	99
PID 3328 wrote to memory of 1676	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	99
PID 3328 wrote to memory of 4352	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	101
PID 3328 wrote to memory of 4352	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	101
PID 3328 wrote to memory of 1440	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	104
PID 3328 wrote to memory of 1440	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	104
PID 3328 wrote to memory of 5092	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	106
PID 3328 wrote to memory of 5092	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	106
PID 3328 wrote to memory of 4376	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	108
PID 3328 wrote to memory of 4376	3328	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	108
PID 4376 wrote to memory of 3628	4376	cmd.exe	110
PID 4376 wrote to memory of 3628	4376	cmd.exe	110

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
212	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
"C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe"
  2⤵
  - Views/modifies file attributes
  PID:212
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4548
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3668
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4940
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:664
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:880
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1676
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4352
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1440
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5092
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4376
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
MD5 6d3e9c29fe44e90aae6ed30ccf799ca8
SHA1 c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA512 60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 948B
SHA256 55f1c311ffec50f6d364764298fcb3172f034ad47b32eea2941bdaab95e369b0
MD5 e136966aba3500e5d57bcfc57edb3be1
SHA1 3dc5f1c1888b68da52706fb5fb053a86d5ac4c8d
SHA512 118f09f6b0a690641abbae52d5e4fa71493553eadcaee9639e59d671ce64576709b3ec3d94e9cfd066f94774590f76de0796d503c73e432f0f3412f5a97aed81
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a
MD5 88be3bc8a7f90e3953298c0fdbec4d72
SHA1 f4969784ad421cc80ef45608727aacd0f6bf2e4b
SHA512 4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 7cef55990e8e6cfe07e1965b303e79ac562cdc128ab82edf480d9873f72bb3ed
MD5 ac057a92f4b62d8880169af0693ef5b2
SHA1 66e7c7834c5dae5cec863ccd69403150d05841f4
SHA512 d525f47da9e61fc87e55aca6b34e776be3ed081b719bbbb5256705a6afe5fdd4c16d5ee595af13994e2718f789f5fd32830331347d97b029c031c9dfe30c7f49
MD5 SHA1 SHA512

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__PSScriptPolicyTest_w1u3xziw.ryi.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w1u3xziw.ryi.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/3328-70-0x0000017C3E990000-0x0000017C3E99A000-memory.dmp

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memory/3328-34-0x0000017C3E9A0000-0x0000017C3E9BE000-memory.dmp

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memory/3328-89-0x00007FF883D30000-0x00007FF8847F1000-memory.dmp

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memory/3328-71-0x0000017C3EB10000-0x0000017C3EB22000-memory.dmp

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memory/3328-2-0x00007FF883D30000-0x00007FF8847F1000-memory.dmp

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memory/3328-32-0x0000017C574F0000-0x0000017C57566000-memory.dmp

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memory/3328-33-0x0000017C3EB40000-0x0000017C3EB90000-memory.dmp

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memory/3328-0-0x00007FF883D33000-0x00007FF883D35000-memory.dmp

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memory/3328-1-0x0000017C3CD00000-0x0000017C3CD40000-memory.dmp

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memory/4548-15-0x00007FF883D30000-0x00007FF8847F1000-memory.dmp

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memory/4548-13-0x0000014927B80000-0x0000014927BA2000-memory.dmp

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memory/4548-3-0x00007FF883D30000-0x00007FF8847F1000-memory.dmp

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memory/4548-14-0x00007FF883D30000-0x00007FF8847F1000-memory.dmp

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memory/4548-18-0x00007FF883D30000-0x00007FF8847F1000-memory.dmp

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