sectoprat | df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d

Analysis

max time kernel
285s
max time network
300s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
29/04/2024, 05:22

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General

Target
df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe
Size 455KB
Sample240429-f22fqsbf53
SHA256 df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d
MD5 4fe50d7ebbbbc20cd513cc300952a3c8
SHA1 87d218b2066ca1511e2c6659eb2bb29f5b5255e3
SHA512 78ca6e4c350b182e7c4206b5b15f72110acebc16463dc4b6a36e7271f147936fad9bc990513a11ebaf752a925b8d650e2aa389cfb5909da1cae200aff1efdb03
SSDEEP 6144:wPKlSI6wvdEjpq79xyN+PKbaKNt8RUeW2s4A9YoxYrP9nys3ODE:wylSI66yj4nOaaJh9x6tT3wE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

sectoprat stealc discovery rat spyware stealer trojan

Malware Config

Extracted

Family

stealc

http://185.172.128.151

Attributes

url_path
/7043a0c6a68d9c65.php

Signatures

Detects Arechclient2 RAT 1 IoCs

Arechclient2.

resource	yara_rule
behavioral2/memory/3748-175-0x0000000000D00000-0x0000000000DC6000-memory.dmp	MALWARE_Win_Arechclient

SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
trojan rat sectoprat

SectopRAT payload 1 IoCs

resource	yara_rule
behavioral2/memory/3748-175-0x0000000000D00000-0x0000000000DC6000-memory.dmp	family_sectoprat

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
4300	u2k8.0.exe
2336	run.exe

Loads dropped DLL 3 IoCs

pid	Process
2336	run.exe
4300	u2k8.0.exe
4300	u2k8.0.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2336 set thread context of 4484	2336	run.exe	75
PID 4484 set thread context of 3748	4484	cmd.exe	78

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

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	u2k8.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	u2k8.0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4592	timeout.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2336	run.exe
2336	run.exe
4484	cmd.exe
4484	cmd.exe
4300	u2k8.0.exe
4300	u2k8.0.exe
3748	MSBuild.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2336	run.exe
4484	cmd.exe
4484	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3748	MSBuild.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2336	run.exe
2336	run.exe
3748	MSBuild.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3320 wrote to memory of 4300	3320	df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe	72
PID 3320 wrote to memory of 4300	3320	df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe	72
PID 3320 wrote to memory of 4300	3320	df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe	72
PID 3320 wrote to memory of 2336	3320	df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe	74
PID 3320 wrote to memory of 2336	3320	df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe	74
PID 3320 wrote to memory of 2336	3320	df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe	74
PID 2336 wrote to memory of 4484	2336	run.exe	75
PID 2336 wrote to memory of 4484	2336	run.exe	75
PID 2336 wrote to memory of 4484	2336	run.exe	75
PID 2336 wrote to memory of 4484	2336	run.exe	75
PID 4484 wrote to memory of 3748	4484	cmd.exe	78
PID 4484 wrote to memory of 3748	4484	cmd.exe	78
PID 4484 wrote to memory of 3748	4484	cmd.exe	78
PID 4300 wrote to memory of 3980	4300	u2k8.0.exe	79
PID 4300 wrote to memory of 3980	4300	u2k8.0.exe	79
PID 4300 wrote to memory of 3980	4300	u2k8.0.exe	79
PID 3980 wrote to memory of 4592	3980	cmd.exe	81
PID 3980 wrote to memory of 4592	3980	cmd.exe	81
PID 3980 wrote to memory of 4592	3980	cmd.exe	81
PID 4484 wrote to memory of 3748	4484	cmd.exe	78
PID 4484 wrote to memory of 3748	4484	cmd.exe	78

C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe
"C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe" & del "C:\ProgramData\*.dll"" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3980
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:4592
- C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe
  "C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\SysWOW64\cmd.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4484
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:3748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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

Are.docx

Path C:\ProgramData\Are.docx
Size 11KB
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
SSDEEP 192:CtNCEE33S7Ok0CMSYbcBVk6tqM16iPBkeawLWdxd7o3Lp:aNwC78uYbcBv6akwLWdxdE3Lp
MD5 SHA1 SHA512 SSDEEP

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e1278cfb

Path C:\Users\Admin\AppData\Local\Temp\e1278cfb
Size 1.4MB
SHA256 ba2ab7a053c33081b1402da00d6865f48374c5a2001e2f889e6536be7595b083
MD5 5f4e1a66feb9356d1128f677fa388a08
SHA1 02486aca98659c27013b712ae9e62d8aab6c05c7
SHA512 5a97e1ccabb9ad820f7f0123ab2c52e85cd1ef969ab52be2154216c8d4bdb193820987f82b81982d10573a528b4728a246661840a0fef796caef1bd1fa9d16ea
SSDEEP 24576:KQQaICaE/ekc2Gq4nqA7E4LjlouAeVaXD0wZLfS0slo6pdMGe2/+53n6xG1oQlNS:OaIEbGnnqQHdvwZLfS0sKqxm53n6xOoh
MD5 SHA1 SHA512 SSDEEP

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tmpF667.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF667.tmp
Size 20KB
SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
MD5 c9ff7748d8fcef4cf84a5501e996a641
SHA1 02867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA512 d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73
SSDEEP 12:TLVsFVP89GkwtwhuFdbXGwvfhowcFOaOmzdOtssh+bgc4Jp+FxOUwa5q0S9zXhZn:TLcF1kwNbXYFpFNYcw+6UwcQVXH5fB
MD5 SHA1 SHA512 SSDEEP

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u2k8.0.exe

Path C:\Users\Admin\AppData\Local\Temp\u2k8.0.exe
Size 203KB
SHA256 ebd2762a31add17ea93d027db70242ed934bf2e7451b3a6bbe472a69d789197d
MD5 0f2d33c1e461d8c35c7538f0942344dc
SHA1 8ba9dd8b16b6a2c099147c104ee1482530b44862
SHA512 578801629e59715c92fea6538969d2451ce3f83a26ff07abb2b64ed15d54411eb7a542148f1e4725551aa40a66226e4667122fc1604052e9897242e303a309d3
SSDEEP 3072:dcTJOexFaceahTMwRI4LLXEjgqUMtDTSqXKaoyVy5Wj5b:dcTJXoc3TFRbT2gqPFWXgB9
MD5 SHA1 SHA512 SSDEEP

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u2k8.1.zip

Path C:\Users\Admin\AppData\Local\Temp\u2k8.1.zip
Size 3.7MB
SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
MD5 78d3ca6355c93c72b494bb6a498bf639
SHA1 2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA512 1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea
SSDEEP 98304:7goFFJ7lj6j1elkeoTNxPxDZhAryYACWcTIxlN+ba:7guJ7wpfTDPxD0P2YG
MD5 SHA1 SHA512 SSDEEP

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UIxMarketPlugin.dll

Path C:\Users\Admin\AppData\Local\Temp\u2k8.2\UIxMarketPlugin.dll
Size 1.6MB
SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
MD5 d1ba9412e78bfc98074c5d724a1a87d6
SHA1 0572f98d78fb0b366b5a086c2a74cc68b771d368
SHA512 8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f
SSDEEP 49152:/7Q2CH7FiYk7q8wOP2nyh9VgFdJYZL6MsQv4Pvg3KIA8wuSgKacXTT3Kos2lpm:sZH7FZk7LP2nyh9VgFdJYZL6NQgPVIAv
MD5 SHA1 SHA512 SSDEEP

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bunch.dat

Path C:\Users\Admin\AppData\Local\Temp\u2k8.2\bunch.dat
Size 1.3MB
SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
MD5 1e8237d3028ab52821d69099e0954f97
SHA1 30a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA512 a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3
SSDEEP 24576:7vktfYOP8kCc3P/X970uBuBFA3S8Fa+/D9kGmk3Lh9AvPG:7vk5H8LIt1e2Sl+if2YG
MD5 SHA1 SHA512 SSDEEP

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relay.dll

Path C:\Users\Admin\AppData\Local\Temp\u2k8.2\relay.dll
Size 1.5MB
SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
MD5 10d51becd0bbce0fab147ff9658c565e
SHA1 4689a18112ff876d3c066bc8c14a08fd6b7b7a4a
SHA512 29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29
SSDEEP 49152:n2gm39uH+I5/GxEoadcqX7Q9F7r40YB+eTcq+PDXx1lWz0v2:DmtuH+e/RoadcqX7Qz7rDY8vq+Pbx1lc
MD5 SHA1 SHA512 SSDEEP

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run.exe

Path C:\Users\Admin\AppData\Local\Temp\u2k8.2\run.exe
Size 2.4MB
SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
MD5 9fb4770ced09aae3b437c1c6eb6d7334
SHA1 fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA512 140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256
SSDEEP 49152:Y8UMSn5cV2N9LNwtQ5gRR+moI1axGbYj6QAl4ImDkg7d5lROCDG5yzlC97W+uJUM:QMS5hN9OtQ5gRjoI8xGbYj6QAl4gg7dF
MD5 SHA1 SHA512 SSDEEP

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whale.dbf

Path C:\Users\Admin\AppData\Local\Temp\u2k8.2\whale.dbf
Size 85KB
SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
MD5 a723bf46048e0bfb15b8d77d7a648c3e
SHA1 8952d3c34e9341e4425571e10f22b782695bb915
SHA512 ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273
SSDEEP 1536:X5B5jj6bWG+5cAD2Fno6ktTgDa+0rldAe7VwDb4bWTfmdI7p:X5Ljj6bi512Fn3b0Ie7qgbWd9
MD5 SHA1 SHA512 SSDEEP

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mozglue.dll

Path \ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path \ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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memory/2336-97-0x0000000073440000-0x00000000735BB000-memory.dmp

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memory/2336-91-0x00007FFB7C590000-0x00007FFB7C76B000-memory.dmp

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memory/2336-90-0x0000000073440000-0x00000000735BB000-memory.dmp

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memory/3320-84-0x0000000000400000-0x0000000001A3D000-memory.dmp

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memory/3320-3-0x0000000000400000-0x0000000001A3D000-memory.dmp

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memory/3320-1-0x0000000001CB0000-0x0000000001DB0000-memory.dmp

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memory/3320-2-0x0000000003650000-0x00000000036BD000-memory.dmp

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memory/3748-176-0x00000000052C0000-0x0000000005352000-memory.dmp

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memory/3748-181-0x0000000005360000-0x000000000536A000-memory.dmp

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memory/3748-194-0x00000000078C0000-0x00000000078CA000-memory.dmp

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memory/3748-184-0x0000000006080000-0x00000000060E6000-memory.dmp

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memory/3748-183-0x0000000005FA0000-0x0000000005FBE000-memory.dmp

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memory/3748-182-0x0000000006430000-0x000000000695C000-memory.dmp

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memory/3748-172-0x0000000071DD0000-0x0000000073153000-memory.dmp

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memory/3748-175-0x0000000000D00000-0x0000000000DC6000-memory.dmp

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memory/3748-180-0x00000000053D0000-0x0000000005420000-memory.dmp

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memory/3748-177-0x00000000058C0000-0x0000000005DBE000-memory.dmp

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memory/3748-178-0x00000000056F0000-0x00000000058B2000-memory.dmp

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memory/3748-179-0x0000000005440000-0x00000000054B6000-memory.dmp

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memory/4300-102-0x0000000002E50000-0x0000000002F50000-memory.dmp

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memory/4300-104-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/4300-170-0x0000000000400000-0x0000000002AF0000-memory.dmp

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memory/4300-103-0x0000000000400000-0x0000000002AF0000-memory.dmp

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memory/4300-160-0x0000000000400000-0x0000000002AF0000-memory.dmp

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memory/4484-100-0x00007FFB7C590000-0x00007FFB7C76B000-memory.dmp

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memory/4484-159-0x0000000073440000-0x00000000735BB000-memory.dmp

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