djvu | d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81

Analysis

max time kernel
136s
max time network
141s
platform
windows7_x64
resource
win7-en
submitted
14/09/2021, 06:39

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General

Target
d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
Size 755KB
Sample210914-hen81aabdr
SHA256 d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81
MD5 2fc229a6b103c773ad1f8805f1a484cf
SHA1 96c021d336fdeba695ef9d9de3a22915cbee66dc
SHA512 66b291694056d8ce82e499c7d3ef9cc7f829aa3348ff0d37e0402dcce55730927b5cbffc4a5901d7a5ddb4f970f45da0e0926fc98b64a63f79a23680097b8833
MD5 SHA1 SHA512

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

https://gheorghip.tumblr.com/

Attributes

profile_id
517

Signatures

Detected Djvu ransomware 6 IoCs

resource	yara_rule
behavioral1/memory/1964-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1964-54-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1964-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1540-56-0x0000000002D80000-0x0000000002E9B000-memory.dmp	family_djvu
behavioral1/memory/680-62-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/680-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/1540-70-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/1540-71-0x000000000049EC7D-mapping.dmp	family_vidar
behavioral1/memory/1540-75-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/1612-74-0x0000000000220000-0x00000000002F2000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 6 IoCs

pid	Process
1612	build2.exe
1540	build2.exe
332	build3.exe
1744	build3.exe
948	mstsca.exe
968	mstsca.exe

Loads dropped DLL 8 IoCs

pid	Process
680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
1540	build2.exe
1540	build2.exe
1540	build2.exe
1540	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
564	icacls.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
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b84c742e-8b35-4245-b72a-18452cfaeba0\\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe\" --AutoStart"	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe

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.

flow	ioc
5	api.2ip.ua

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 1540 set thread context of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1484 set thread context of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1612 set thread context of 1540	1612	build2.exe	38
PID 332 set thread context of 1744	332	build3.exe	40
PID 948 set thread context of 968	948	mstsca.exe	51

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.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

pid	Process
1640	schtasks.exe
1720	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1036	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1828	taskkill.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	build2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	build2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	build2.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
1540	build2.exe
1540	build2.exe
1540	build2.exe
1540	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1828	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1540 wrote to memory of 1964	1540	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	26
PID 1964 wrote to memory of 564	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	33
PID 1964 wrote to memory of 564	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	33
PID 1964 wrote to memory of 564	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	33
PID 1964 wrote to memory of 564	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	33
PID 1964 wrote to memory of 1484	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	34
PID 1964 wrote to memory of 1484	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	34
PID 1964 wrote to memory of 1484	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	34
PID 1964 wrote to memory of 1484	1964	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	34
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 1484 wrote to memory of 680	1484	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	35
PID 680 wrote to memory of 1612	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	37
PID 680 wrote to memory of 1612	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	37
PID 680 wrote to memory of 1612	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	37
PID 680 wrote to memory of 1612	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	37
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 1612 wrote to memory of 1540	1612	build2.exe	38
PID 680 wrote to memory of 332	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	39
PID 680 wrote to memory of 332	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	39
PID 680 wrote to memory of 332	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	39
PID 680 wrote to memory of 332	680	d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe	39
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 332 wrote to memory of 1744	332	build3.exe	40
PID 1744 wrote to memory of 1640	1744	build3.exe	41
PID 1744 wrote to memory of 1640	1744	build3.exe	41
PID 1744 wrote to memory of 1640	1744	build3.exe	41
PID 1744 wrote to memory of 1640	1744	build3.exe	41
PID 1540 wrote to memory of 344	1540	build2.exe	44
PID 1540 wrote to memory of 344	1540	build2.exe	44
PID 1540 wrote to memory of 344	1540	build2.exe	44

C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
"C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
  "C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b84c742e-8b35-4245-b72a-18452cfaeba0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:564
- - C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
    "C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1484
  - - C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe
      "C:\Users\Admin\AppData\Local\Temp\d5b3a05a83dac1fde11c26bb358f513ddf0cb57853a141fecccda0446c842f81.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:680
    - - C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build2.exe
        
        "C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1612
      - C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build2.exe
        
        "C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Modifies system certificate store
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1540
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        
        PID:344
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1828
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:1036
    - - C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build3.exe
        
        "C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:332
      - C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build3.exe
        
        "C:\Users\Admin\AppData\Local\8aceb60f-fef5-418b-b73b-efc883a1ec99\build3.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1744
        
        C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        7⤵
        Creates scheduled task(s)
        
        PID:1640

C:\Windows\system32\taskeng.exe
taskeng.exe {D90F108F-D8DC-4685-AE4D-16740295EFF0} S-1-5-21-1669990088-476967504-438132596-1000:KJUCCLUP\Admin:Interactive:[1]
1⤵
PID:904
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:948
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:968
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      4⤵
      Creates scheduled task(s)
      PID:1720

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/332-83-0x00000000001B0000-0x00000000001B4000-memory.dmp

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memory/680-64-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1540-56-0x0000000002D80000-0x0000000002E9B000-memory.dmp

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memory/1540-75-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/1540-70-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/1612-74-0x0000000000220000-0x00000000002F2000-memory.dmp

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memory/1744-87-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1744-81-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1964-57-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1964-53-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1964-55-0x00000000756A1000-0x00000000756A3000-memory.dmp

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