vidar | 08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550

Analysis

max time kernel
147s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
30-05-2022 20:36

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General

Target

08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
Size

4.3MB
MD5

05d1f810e1e7d48d0d729ed811108d2f
SHA1

96650bd1c28b0fe73dee7dc0c50885310bcf8c11
SHA256

08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550
SHA512

d71609dd0ce443ed3a3b138ca5375775b62f0e42c3fe660de3ad2ad1607287edce2bf9f2627392882c9ea73b6eb1490d71730bbc86a8cf2f0f7600a8a6f923d7

Score

10^/10

vidar 231 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

10.3

Botnet

231

http://trasolevelqvines.com/

Attributes

profile_id
231

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/1436-141-0x0000000000400000-0x00000000004CA000-memory.dmp	family_vidar
behavioral2/memory/1436-152-0x0000000000400000-0x00000000004CA000-memory.dmp	family_vidar

Executes dropped EXE 4 IoCs

Processes:

busshost.exeYTLoader.execonf.exeattachmentphoto.exe

pid process

1436 busshost.exe
2212 YTLoader.exe
3764 conf.exe
216 attachmentphoto.exe

pid	process
1436	busshost.exe
2212	YTLoader.exe
3764	conf.exe
216	attachmentphoto.exe

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

Processes:

08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.execonf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	conf.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 ip-api.com

flow	ioc
6	ip-api.com

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/3764-155-0x0000000000400000-0x0000000000520000-memory.dmp	autoit_exe
behavioral2/memory/3764-161-0x0000000000400000-0x0000000000520000-memory.dmp	autoit_exe
behavioral2/memory/216-169-0x0000000000400000-0x0000000000520000-memory.dmp	autoit_exe
behavioral2/memory/216-170-0x0000000000400000-0x0000000000520000-memory.dmp	autoit_exe

Drops file in Program Files directory 5 IoCs

Processes:

08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\conf.exe	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe

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

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2244 2212 WerFault.exe YTLoader.exe
2060 3764 WerFault.exe conf.exe

pid	pid_target	process	target process
2244	2212	WerFault.exe	YTLoader.exe
2060	3764	WerFault.exe	conf.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

busshost.exeYTLoader.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	busshost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	YTLoader.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	busshost.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

3436 schtasks.exe
3360 schtasks.exe

pid	process
3436	schtasks.exe
3360	schtasks.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

YTLoader.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	YTLoader.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1880 PING.EXE
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

busshost.exe

pid process

1436 busshost.exe
1436 busshost.exe
1436 busshost.exe
1436 busshost.exe
1436 busshost.exe
1436 busshost.exe
1436 busshost.exe
1436 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 2212 YTLoader.exe

pid	process
1880	PING.EXE

pid	process
1436	busshost.exe
1436	busshost.exe
1436	busshost.exe
1436	busshost.exe
1436	busshost.exe
1436	busshost.exe
1436	busshost.exe
1436	busshost.exe

description	pid	process
Token: SeDebugPrivilege	2212	YTLoader.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.execonf.execmd.exeattachmentphoto.execmd.execmd.exe

description	pid	process	target process
PID 3188 wrote to memory of 1436	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	busshost.exe
PID 3188 wrote to memory of 1436	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	busshost.exe
PID 3188 wrote to memory of 1436	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	busshost.exe
PID 3188 wrote to memory of 2212	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	YTLoader.exe
PID 3188 wrote to memory of 2212	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	YTLoader.exe
PID 3188 wrote to memory of 2212	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	YTLoader.exe
PID 3188 wrote to memory of 3764	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	conf.exe
PID 3188 wrote to memory of 3764	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	conf.exe
PID 3188 wrote to memory of 3764	3188	08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe	conf.exe
PID 3764 wrote to memory of 216	3764	conf.exe	attachmentphoto.exe
PID 3764 wrote to memory of 216	3764	conf.exe	attachmentphoto.exe
PID 3764 wrote to memory of 216	3764	conf.exe	attachmentphoto.exe
PID 3764 wrote to memory of 2044	3764	conf.exe	cmd.exe
PID 3764 wrote to memory of 2044	3764	conf.exe	cmd.exe
PID 3764 wrote to memory of 2044	3764	conf.exe	cmd.exe
PID 2044 wrote to memory of 1880	2044	cmd.exe	PING.EXE
PID 2044 wrote to memory of 1880	2044	cmd.exe	PING.EXE
PID 2044 wrote to memory of 1880	2044	cmd.exe	PING.EXE
PID 216 wrote to memory of 2916	216	attachmentphoto.exe	cmd.exe
PID 216 wrote to memory of 2916	216	attachmentphoto.exe	cmd.exe
PID 216 wrote to memory of 2916	216	attachmentphoto.exe	cmd.exe
PID 216 wrote to memory of 768	216	attachmentphoto.exe	cmd.exe
PID 216 wrote to memory of 768	216	attachmentphoto.exe	cmd.exe
PID 216 wrote to memory of 768	216	attachmentphoto.exe	cmd.exe
PID 768 wrote to memory of 3360	768	cmd.exe	schtasks.exe
PID 768 wrote to memory of 3360	768	cmd.exe	schtasks.exe
PID 768 wrote to memory of 3360	768	cmd.exe	schtasks.exe
PID 2916 wrote to memory of 3436	2916	cmd.exe	schtasks.exe
PID 2916 wrote to memory of 3436	2916	cmd.exe	schtasks.exe
PID 2916 wrote to memory of 3436	2916	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe
"C:\Users\Admin\AppData\Local\Temp\08df48c8601f0c28b046a7cefb564d9628a5416c111488142ada2ee7bb398550.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3188

C:\Program Files (x86)\LetsSee!\busshost.exe
"C:\Program Files (x86)\LetsSee!\busshost.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1436

C:\Program Files (x86)\LetsSee!\YTLoader.exe
"C:\Program Files (x86)\LetsSee!\YTLoader.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 1576
3⤵
- Program crash
PID:2244

C:\Program Files (x86)\LetsSee!\conf.exe
"C:\Program Files (x86)\LetsSee!\conf.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3764

C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:216

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c SchTasks /create /SC MINUTE /TN 7ZipUnis /TR C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\volumfix.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:2916

C:\Windows\SysWOW64\schtasks.exe
SchTasks /create /SC MINUTE /TN 7ZipUnis /TR C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\volumfix.exe
5⤵
- Creates scheduled task(s)
PID:3436

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c SchTasks /create /SC HOURLY /TN FlashServis /TR C:\ProgramData\FlashSys\CurlMSI.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\SysWOW64\schtasks.exe
SchTasks /create /SC HOURLY /TN FlashServis /TR C:\ProgramData\FlashSys\CurlMSI.exe
5⤵
- Creates scheduled task(s)
PID:3360

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping -n 2 localhost < nul & del /F /Q "C:\Program Files (x86)\LetsSee!\conf.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\PING.EXE
ping -n 2 localhost
4⤵
- Runs ping.exe
PID:1880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1120
3⤵
- Program crash
PID:2060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2212 -ip 2212
1⤵
PID:424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3764 -ip 3764
1⤵
PID:1816

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Remote System Discovery

T1018

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
716KB

MD5
bede4a068f27d85678a99ddf669089fa

SHA1
fd0a9d064a8fe23319fd21433035de6c4179a68c

SHA256
990a53055c9bc648da3f860413a5bafd06b0889e408d443fd99fc4e4259cdbab

SHA512
c06e8159540364f2e2e11da834fd2680021cc4057ee70f9b77c7feb2151dd9d14a4518278bf39b805a2b3eb2813a6e73758e038423519f657d9a82ea69d28afe

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
716KB

MD5
bede4a068f27d85678a99ddf669089fa

SHA1
fd0a9d064a8fe23319fd21433035de6c4179a68c

SHA256
990a53055c9bc648da3f860413a5bafd06b0889e408d443fd99fc4e4259cdbab

SHA512
c06e8159540364f2e2e11da834fd2680021cc4057ee70f9b77c7feb2151dd9d14a4518278bf39b805a2b3eb2813a6e73758e038423519f657d9a82ea69d28afe

Download Submit
C:\Program Files (x86)\LetsSee!\conf.exe
Filesize
1022KB

MD5
e675b999d5c8091a8e4cefd3d1da03d6

SHA1
20a148083b31517f52fbb775d84d7d7256f0b9c6

SHA256
cbb8ed00b41745ee83a78041057f5eacf1110815e79591bbb8f1e961230b7f8b

SHA512
23fd81dad4065b8aad0287d9a5e9b857962786fc34152ea281c2728602e37509cea42740faf73477f3815b084a1c50b3fea9da3ce95f82cb4bbf06272c36a9f2

Download Submit
C:\Program Files (x86)\LetsSee!\conf.exe
Filesize
1022KB

MD5
e675b999d5c8091a8e4cefd3d1da03d6

SHA1
20a148083b31517f52fbb775d84d7d7256f0b9c6

SHA256
cbb8ed00b41745ee83a78041057f5eacf1110815e79591bbb8f1e961230b7f8b

SHA512
23fd81dad4065b8aad0287d9a5e9b857962786fc34152ea281c2728602e37509cea42740faf73477f3815b084a1c50b3fea9da3ce95f82cb4bbf06272c36a9f2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\win.ini
Filesize
199B

MD5
3d68da5fd157231843a13667676de3f2

SHA1
206082eb56a40f38ba1e852ffcde4cd6e23cc338

SHA256
f5c9d294b9c805e38bebe17ac7150bf591df5b28f28db56dc2a1a9e609331759

SHA512
e136ed0cc3f47c52b439d72d39fcde3724852ec106e145c5e0dbb6d4d6e69209da7d160e3cc7c7ad51370230ffd4403477a65cd334cf71965473b847db0584a5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
Filesize
1022KB

MD5
e675b999d5c8091a8e4cefd3d1da03d6

SHA1
20a148083b31517f52fbb775d84d7d7256f0b9c6

SHA256
cbb8ed00b41745ee83a78041057f5eacf1110815e79591bbb8f1e961230b7f8b

SHA512
23fd81dad4065b8aad0287d9a5e9b857962786fc34152ea281c2728602e37509cea42740faf73477f3815b084a1c50b3fea9da3ce95f82cb4bbf06272c36a9f2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\7ZipArchiver\attachmentphoto.exe
Filesize
1022KB

MD5
e675b999d5c8091a8e4cefd3d1da03d6

SHA1
20a148083b31517f52fbb775d84d7d7256f0b9c6

SHA256
cbb8ed00b41745ee83a78041057f5eacf1110815e79591bbb8f1e961230b7f8b

SHA512
23fd81dad4065b8aad0287d9a5e9b857962786fc34152ea281c2728602e37509cea42740faf73477f3815b084a1c50b3fea9da3ce95f82cb4bbf06272c36a9f2

Download Submit
memory/216-168-0x0000000002280000-0x0000000002314000-memory.dmp

Filesize
592KB

Download
memory/216-169-0x0000000000400000-0x0000000000520000-memory.dmp

Filesize
1.1MB

Download
memory/216-170-0x0000000000400000-0x0000000000520000-memory.dmp

Filesize
1.1MB

Download
memory/216-156-0x0000000000000000-mapping.dmp

Download
memory/768-165-0x0000000000000000-mapping.dmp

Download
memory/1436-151-0x00000000020E0000-0x00000000021E0000-memory.dmp

Filesize
1024KB

Download
memory/1436-130-0x0000000000000000-mapping.dmp

Download
memory/1436-136-0x00000000020E0000-0x00000000021E0000-memory.dmp

Filesize
1024KB

Download
memory/1436-141-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1436-152-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1880-159-0x0000000000000000-mapping.dmp

Download
memory/2044-158-0x0000000000000000-mapping.dmp

Download
memory/2212-142-0x0000000005500000-0x000000000550A000-memory.dmp

Filesize
40KB

Download
memory/2212-133-0x0000000000000000-mapping.dmp

Download
memory/2212-145-0x0000000005650000-0x0000000005658000-memory.dmp

Filesize
32KB

Download
memory/2212-148-0x0000000005690000-0x0000000005698000-memory.dmp

Filesize
32KB

Download
memory/2212-144-0x0000000005640000-0x0000000005648000-memory.dmp

Filesize
32KB

Download
memory/2212-143-0x0000000005510000-0x0000000005518000-memory.dmp

Filesize
32KB

Download
memory/2212-146-0x0000000005660000-0x0000000005668000-memory.dmp

Filesize
32KB

Download
memory/2212-149-0x00000000056A0000-0x00000000056A8000-memory.dmp

Filesize
32KB

Download
memory/2212-140-0x00000000007E0000-0x0000000000AE8000-memory.dmp

Filesize
3.0MB

Download
memory/2212-147-0x0000000005680000-0x0000000005688000-memory.dmp

Filesize
32KB

Download
memory/2916-164-0x0000000000000000-mapping.dmp

Download
memory/3360-166-0x0000000000000000-mapping.dmp

Download
memory/3436-167-0x0000000000000000-mapping.dmp

Download
memory/3764-161-0x0000000000400000-0x0000000000520000-memory.dmp

Filesize
1.1MB

Download
memory/3764-150-0x00000000022F9000-0x000000000238D000-memory.dmp

Filesize
592KB

Download
memory/3764-160-0x00000000022F9000-0x000000000238D000-memory.dmp

Filesize
592KB

Download
memory/3764-137-0x0000000000000000-mapping.dmp

Download
memory/3764-155-0x0000000000400000-0x0000000000520000-memory.dmp

Filesize
1.1MB

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memory/3764-153-0x00000000022F9000-0x000000000238D000-memory.dmp

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