djvu | 4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad

Analysis

max time kernel
145s
max time network
150s
platform
windows7_x64
resource
win7-en
submitted
14/09/2021, 06:37

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General

Target
4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
Size 695KB
Sample210914-hdhd3afbb8
SHA256 4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad
MD5 5ebbd85542bc70e9168169441653452c
SHA1 013697b4369e1a198fa6e0971bd635abd9ed66f8
SHA512 e16bf2b84a34252c76f54f7b4a0e04617e890b1c408f74dcf997ecf81b2cf931abae0f681f4f00ed3b9d56c93913cc25e2f28eb8d7d8e94d70cef491931064b7
MD5 SHA1 SHA512

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

https://gheorghip.tumblr.com/

Attributes

profile_id
517

Signatures

Detected Djvu ransomware 7 IoCs

resource	yara_rule
behavioral1/memory/1204-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1204-54-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1972-56-0x00000000045B0000-0x00000000046CB000-memory.dmp	family_djvu
behavioral1/memory/1204-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1324-62-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1324-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1032-96-0x0000000000424141-mapping.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

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/548-75-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/548-76-0x000000000049EC7D-mapping.dmp	family_vidar
behavioral1/memory/1748-77-0x0000000002370000-0x0000000002442000-memory.dmp	family_vidar
behavioral1/memory/548-80-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
1748	build2.exe
548	build2.exe
952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
1032	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe

Loads dropped DLL 6 IoCs

pid	Process
1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
548	build2.exe
548	build2.exe
548	build2.exe
548	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1552	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\\c2788825-3dfc-40f1-bdc0-c29948eefdd5\\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe\" --AutoStart"	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.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 4 IoCs

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

flow	ioc
4	api.2ip.ua
6	api.2ip.ua
15	api.2ip.ua
29	api.2ip.ua

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 840 set thread context of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 1748 set thread context of 548	1748	build2.exe	38
PID 952 set thread context of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1996	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1336	taskkill.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
548	build2.exe
548	build2.exe
548	build2.exe
548	build2.exe
1032	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
1032	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1972 wrote to memory of 1204	1972	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	26
PID 1204 wrote to memory of 1552	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	33
PID 1204 wrote to memory of 1552	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	33
PID 1204 wrote to memory of 1552	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	33
PID 1204 wrote to memory of 1552	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	33
PID 1204 wrote to memory of 840	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	34
PID 1204 wrote to memory of 840	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	34
PID 1204 wrote to memory of 840	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	34
PID 1204 wrote to memory of 840	1204	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	34
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 840 wrote to memory of 1324	840	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	35
PID 1324 wrote to memory of 1748	1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	37
PID 1324 wrote to memory of 1748	1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	37
PID 1324 wrote to memory of 1748	1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	37
PID 1324 wrote to memory of 1748	1324	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	37
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 1748 wrote to memory of 548	1748	build2.exe	38
PID 548 wrote to memory of 1112	548	build2.exe	40
PID 548 wrote to memory of 1112	548	build2.exe	40
PID 548 wrote to memory of 1112	548	build2.exe	40
PID 548 wrote to memory of 1112	548	build2.exe	40
PID 1112 wrote to memory of 1336	1112	cmd.exe	42
PID 1112 wrote to memory of 1336	1112	cmd.exe	42
PID 1112 wrote to memory of 1336	1112	cmd.exe	42
PID 1112 wrote to memory of 1336	1112	cmd.exe	42
PID 1112 wrote to memory of 1996	1112	cmd.exe	43
PID 1112 wrote to memory of 1996	1112	cmd.exe	43
PID 1112 wrote to memory of 1996	1112	cmd.exe	43
PID 1112 wrote to memory of 1996	1112	cmd.exe	43
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46
PID 952 wrote to memory of 1032	952	4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe	46

C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
"C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
  "C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\c2788825-3dfc-40f1-bdc0-c29948eefdd5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1552
- - C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
    "C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:840
  - - C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
      "C:\Users\Admin\AppData\Local\Temp\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1324
    - - C:\Users\Admin\AppData\Local\b4459100-b715-4a0d-bbfe-fa55f66b77a4\build2.exe
        
        "C:\Users\Admin\AppData\Local\b4459100-b715-4a0d-bbfe-fa55f66b77a4\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1748
      - C:\Users\Admin\AppData\Local\b4459100-b715-4a0d-bbfe-fa55f66b77a4\build2.exe
        
        "C:\Users\Admin\AppData\Local\b4459100-b715-4a0d-bbfe-fa55f66b77a4\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:548
        
        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\b4459100-b715-4a0d-bbfe-fa55f66b77a4\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:1112
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1336
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:1996

C:\Windows\system32\taskeng.exe
taskeng.exe {0CCC3EDC-8420-48C1-90CC-99F1227BD033} S-1-5-21-1669990088-476967504-438132596-1000:KJUCCLUP\Admin:Interactive:[1]
1⤵
PID:1100
- C:\Users\Admin\AppData\Local\c2788825-3dfc-40f1-bdc0-c29948eefdd5\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
  C:\Users\Admin\AppData\Local\c2788825-3dfc-40f1-bdc0-c29948eefdd5\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe --Task
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:952
- - C:\Users\Admin\AppData\Local\c2788825-3dfc-40f1-bdc0-c29948eefdd5\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe
    C:\Users\Admin\AppData\Local\c2788825-3dfc-40f1-bdc0-c29948eefdd5\4b6c78e1228ad2f2bb1e35f6b0a5c3f4bd574098b110627b553cf88e780addad.exe --Task
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:1032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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/548-75-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/548-80-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/1204-53-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1204-55-0x0000000075C11000-0x0000000075C13000-memory.dmp

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memory/1204-57-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1324-64-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1748-77-0x0000000002370000-0x0000000002442000-memory.dmp

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memory/1972-56-0x00000000045B0000-0x00000000046CB000-memory.dmp

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