ramnit | 3a3674b0367f2d66c25a0419e1e9dea8d8c6f7d92d0f50dd60e8c90086d4a52c

Analysis

max time kernel
92s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/03/2024, 19:33

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General

Target
d9a244527d2040f618ee42ae4209cf9d.exe
Size 95KB
Sample240320-x9t53agg96
SHA256 3a3674b0367f2d66c25a0419e1e9dea8d8c6f7d92d0f50dd60e8c90086d4a52c
MD5 d9a244527d2040f618ee42ae4209cf9d
SHA1 ee8da9a1ad0635e7c462e878ead45e94f772fdfa
SHA512 9a63047f559118c4370af37338e62bb693b82eb0be60755c7234c8d78b11309468df1acc3881a9736a688a1ef28ae4c80fc08d5debd14893f55905423a7b6f79
SSDEEP 768:B06R0UKzOgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9Y:nR0vxn3Pc0LCH9MtbvabUDzJYWu3B
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 1 IoCs

pid	Process
4424	WaterMark.exe

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4060-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4060-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4060-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4060-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4060-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4060-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4060-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4424-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4424-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4424-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4424-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4016.tmp	d9a244527d2040f618ee42ae4209cf9d.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	d9a244527d2040f618ee42ae4209cf9d.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	d9a244527d2040f618ee42ae4209cf9d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3604	1288	WerFault.exe	86

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2565208109"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2564114024"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31095549"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31095549"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2565208109"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31095549"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C46494A1-E6F0-11EE-BD28-7AA08ABF42A0} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2564114024"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417728200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31095549"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe
4424	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4424	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1996	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1996	iexplore.exe
1996	iexplore.exe
2856	IEXPLORE.EXE
2856	IEXPLORE.EXE
2856	IEXPLORE.EXE
2856	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4060	d9a244527d2040f618ee42ae4209cf9d.exe
4424	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4060 wrote to memory of 4424	4060	d9a244527d2040f618ee42ae4209cf9d.exe	85
PID 4060 wrote to memory of 4424	4060	d9a244527d2040f618ee42ae4209cf9d.exe	85
PID 4060 wrote to memory of 4424	4060	d9a244527d2040f618ee42ae4209cf9d.exe	85
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 1288	4424	WaterMark.exe	86
PID 4424 wrote to memory of 3532	4424	WaterMark.exe	90
PID 4424 wrote to memory of 3532	4424	WaterMark.exe	90
PID 4424 wrote to memory of 1996	4424	WaterMark.exe	91
PID 4424 wrote to memory of 1996	4424	WaterMark.exe	91
PID 1996 wrote to memory of 2856	1996	iexplore.exe	92
PID 1996 wrote to memory of 2856	1996	iexplore.exe	92
PID 1996 wrote to memory of 2856	1996	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\d9a244527d2040f618ee42ae4209cf9d.exe
"C:\Users\Admin\AppData\Local\Temp\d9a244527d2040f618ee42ae4209cf9d.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:1288
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 12
      4⤵
      Program crash
      PID:3604
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:3532
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1996
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1996 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1288 -ip 1288
1⤵
PID:1808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

WaterMark.exe

Path C:\Program Files (x86)\Microsoft\WaterMark.exe
Size 95KB
SHA256 3a3674b0367f2d66c25a0419e1e9dea8d8c6f7d92d0f50dd60e8c90086d4a52c
MD5 d9a244527d2040f618ee42ae4209cf9d
SHA1 ee8da9a1ad0635e7c462e878ead45e94f772fdfa
SHA512 9a63047f559118c4370af37338e62bb693b82eb0be60755c7234c8d78b11309468df1acc3881a9736a688a1ef28ae4c80fc08d5debd14893f55905423a7b6f79
SSDEEP 768:B06R0UKzOgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9Y:nR0vxn3Pc0LCH9MtbvabUDzJYWu3B
MD5 SHA1 SHA512 SSDEEP

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 471B
SHA256 b218f40db2885433381c77792c27b34d504820fdb96364930b1cee9378e01fcd
MD5 b27bd87435bcf1ae532eee32a1c8b786
SHA1 6dc323f0eb21b4689da001b23f07965bfdbd5b36
SHA512 76b675fb4221ac7c0136e77cbee41441fc0ca073ef743dea37b188b2274d9342b45b4cef2ea7fea63d5a26ece440344c8884619db2a876b2577cc87b9e4814ed
MD5 SHA1 SHA512

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 404B
SHA256 57d09d56d1ef9781ab1c81b7b901438c5aaf9eec43184d8ca586ffc2795178f9
MD5 e8b7f9be3301c70f4737e09a2e8d27d8
SHA1 bcc6ef8b22daf9027c6d0b7bd78e3e1ef12c5e81
SHA512 2558e6bb132414c2f0afe2967affb88e134286942e500391bf8b90fe8d061f15640d0509d27b6bc57ec9e7e9c13f0832189081f308cc3508142146f9dc8d4432
MD5 SHA1 SHA512

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verC3CD.tmp

Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verC3CD.tmp
Size 15KB
SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
MD5 1a545d0052b581fbb2ab4c52133846bc
SHA1 62f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA512 bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
SSDEEP 384:79Jv9DF9/C9qc9/J9V791T9TK9Xf9Nm9xQ95a9BR9fV:79Jv9DF9/C9qc9/J9V791T9TK9Xf9NmT
MD5 SHA1 SHA512 SSDEEP

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\UG0DPB4T\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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memory/1288-30-0x00000000003D0000-0x00000000003D1000-memory.dmp

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memory/1288-31-0x00000000003B0000-0x00000000003B1000-memory.dmp

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memory/4060-6-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4060-0-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/4060-9-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4060-12-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4060-7-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4060-1-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/4060-3-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/4060-2-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4060-4-0x0000000000920000-0x0000000000921000-memory.dmp

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memory/4060-8-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4060-5-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4424-24-0x00000000001E0000-0x00000000001E1000-memory.dmp

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memory/4424-28-0x0000000077042000-0x0000000077043000-memory.dmp

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memory/4424-32-0x0000000000070000-0x0000000000071000-memory.dmp

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memory/4424-33-0x0000000077042000-0x0000000077043000-memory.dmp

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memory/4424-34-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4424-27-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4424-26-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4424-25-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/4424-17-0x0000000000400000-0x000000000045A000-memory.dmp

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