djvu | fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed

Analysis

max time kernel
135s
max time network
125s
platform
windows10_x64
resource
win10-en-20210920
submitted
25-10-2021 04:00

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General

Target

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
Size

781KB
MD5

3fd6740067a6944c5c8b99fef52c09d7
SHA1

909a2cb9b4a660007a3c56e767c595c2fa640237
SHA256

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed
SHA512

66f1a44ab4ef8cbf2afe8b6a16f719974e844d6e4c84b647dbf644b020d5da46ce987d7f00524aef7a4a2b8fb6cc533a770f177edb81e04f89a4013fb2f8b27b

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

517

https://mas.to/@xeroxxx

Attributes

profile_id
517

Extracted

Family

djvu

http://rlrz.org/fhsgtsspen6

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3716-116-0x00000000013D0000-0x00000000014EB000-memory.dmp	family_djvu
behavioral1/memory/3468-117-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3468-118-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3468-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1084-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1084-130-0x0000000000400000-0x0000000000537000-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

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/964-145-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/964-146-0x00000000004A18CD-mapping.dmp	family_vidar
behavioral1/memory/668-148-0x0000000004C40000-0x0000000004D16000-memory.dmp	family_vidar
behavioral1/memory/964-149-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 8 IoCs

Processes:

build2.exebuild3.exebuild3.exebuild2.exemstsca.exemstsca.exemstsca.exemstsca.exe

pid process

668 build2.exe
724 build3.exe
3676 build3.exe
964 build2.exe
1568 mstsca.exe
3720 mstsca.exe
3784 mstsca.exe
4064 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

964 build2.exe
964 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2008 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

pid	process
668	build2.exe
724	build3.exe
3676	build3.exe
964	build2.exe
1568	mstsca.exe
3720	mstsca.exe
3784	mstsca.exe
4064	mstsca.exe

pid	process
964	build2.exe
964	build2.exe

pid	process
2008	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b851bd51-9289-4e7c-8002-4b1a87f86ec5\\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe\" --AutoStart"	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

16 api.2ip.ua
17 api.2ip.ua
30 api.2ip.ua

flow	ioc
16	api.2ip.ua
17	api.2ip.ua
30	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exefd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exebuild3.exebuild2.exemstsca.exemstsca.exe

description	pid	process	target process
PID 3716 set thread context of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 set thread context of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 724 set thread context of 3676	724	build3.exe	build3.exe
PID 668 set thread context of 964	668	build2.exe	build2.exe
PID 1568 set thread context of 3720	1568	mstsca.exe	mstsca.exe
PID 3784 set thread context of 4064	3784	mstsca.exe	mstsca.exe

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

Processes:

build2.exe

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

Processes:

schtasks.exeschtasks.exe

pid process

3744 schtasks.exe
3572 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

632 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3848 taskkill.exe

pid	process
3744	schtasks.exe
3572	schtasks.exe

pid	process
632	timeout.exe

pid	process
3848	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exefd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exebuild2.exe

pid	process
3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
964	build2.exe
964	build2.exe
964	build2.exe
964	build2.exe
964	build2.exe
964	build2.exe
964	build2.exe
964	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3848 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3848	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exefd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exefd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exefd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exebuild3.exebuild3.exebuild2.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3716 wrote to memory of 3468	3716	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3468 wrote to memory of 2008	3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	icacls.exe
PID 3468 wrote to memory of 2008	3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	icacls.exe
PID 3468 wrote to memory of 2008	3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	icacls.exe
PID 3468 wrote to memory of 516	3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3468 wrote to memory of 516	3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 3468 wrote to memory of 516	3468	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 516 wrote to memory of 1084	516	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
PID 1084 wrote to memory of 668	1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	build2.exe
PID 1084 wrote to memory of 668	1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	build2.exe
PID 1084 wrote to memory of 668	1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	build2.exe
PID 1084 wrote to memory of 724	1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	build3.exe
PID 1084 wrote to memory of 724	1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	build3.exe
PID 1084 wrote to memory of 724	1084	fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 724 wrote to memory of 3676	724	build3.exe	build3.exe
PID 3676 wrote to memory of 3744	3676	build3.exe	schtasks.exe
PID 3676 wrote to memory of 3744	3676	build3.exe	schtasks.exe
PID 3676 wrote to memory of 3744	3676	build3.exe	schtasks.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 668 wrote to memory of 964	668	build2.exe	build2.exe
PID 964 wrote to memory of 2244	964	build2.exe	cmd.exe
PID 964 wrote to memory of 2244	964	build2.exe	cmd.exe
PID 964 wrote to memory of 2244	964	build2.exe	cmd.exe
PID 2244 wrote to memory of 3848	2244	cmd.exe	taskkill.exe
PID 2244 wrote to memory of 3848	2244	cmd.exe	taskkill.exe
PID 2244 wrote to memory of 3848	2244	cmd.exe	taskkill.exe
PID 2244 wrote to memory of 632	2244	cmd.exe	timeout.exe
PID 2244 wrote to memory of 632	2244	cmd.exe	timeout.exe
PID 2244 wrote to memory of 632	2244	cmd.exe	timeout.exe
PID 1568 wrote to memory of 3720	1568	mstsca.exe	mstsca.exe
PID 1568 wrote to memory of 3720	1568	mstsca.exe	mstsca.exe
PID 1568 wrote to memory of 3720	1568	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
"C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3716

C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
"C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3468

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\b851bd51-9289-4e7c-8002-4b1a87f86ec5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2008

C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
"C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:516

C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe
"C:\Users\Admin\AppData\Local\Temp\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1084

C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe
"C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:668

C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe
"C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:964

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\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:2244

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3848

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:632

C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe
"C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:724

C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe
"C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3676

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:3744

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1568

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:3720

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"
3⤵
- Creates scheduled task(s)
PID:3572

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:3784

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:4064

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

C:\ProgramData\freebl3.dll

MD5
ef2834ac4ee7d6724f255beaf527e635

SHA1
5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

SHA256
a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

SHA512
c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

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C:\ProgramData\mozglue.dll

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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C:\ProgramData\msvcp140.dll

MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

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C:\ProgramData\nss3.dll

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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C:\ProgramData\softokn3.dll

MD5
a2ee53de9167bf0d6c019303b7ca84e5

SHA1
2a3c737fa1157e8483815e98b666408a18c0db42

SHA256
43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

SHA512
45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

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C:\ProgramData\vcruntime140.dll

MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

MD5
eb580dc014e8a0ba57b05717d9b2c7a1

SHA1
1b9f2cb35263b103d05af84a8b41f74186afed72

SHA256
59c9f91919d8cf9c0c8dd5089eb737460ee002f17bdc2cf90c4872263c426fd9

SHA512
ad031d69240c9e33faad5a7f07e5b524c06fb54f2360095f23a7accf28b17958fb52e40fb01f45498f8c19d00289f1f579b6cb995ec1ad6c468fd27aa33f16df

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

MD5
3168035090977b01e2b15a045297d6cd

SHA1
baec8a47d00d0904648b385aca5778d947456dc7

SHA256
e57b9ecf72046536715f2b8dfad9f0e5560d325149f0ac80598d2d7a5703744a

SHA512
377ac77af3dd55e07683a0ed76df64b517ead18a2ce278f5ca2db41fd5559e44a533ffb325e14ac34186ee03efc483c8841207da042cae3e9ea9ec3eacc63942

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

MD5
2aca11e5fb771be9bad00213ab73237f

SHA1
3ab9e97f9b4a6b5687efba51e229f90aae67f0c6

SHA256
5a2e47e9675dcf394c8b8861d5badae13821a15a85ebb123baba4bbdd435527d

SHA512
ee0be4125387985642f17644aa892ba3bb63fc92a2fab2bb2045d06a2c55afdf666de67ceb9829848d1f1f853e62b10d087d66e2a77d3ba64c7b331e17cbe516

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

MD5
12d4c44be8807a7f113acbe3c838988b

SHA1
ba4e7a411be04139321d10decd66a5a667237b1c

SHA256
bf2fed8fc569121d2f207ed45b15cd7d2b6fc99ea288bb2b591a8f9563024f2d

SHA512
d39e296e7779a6c30593584b083c2b503c47bf758ace31b2466a64f8cf6a1342f0d6d4532f89596189702f2daab610ea4738c3e9baca5c31c1593111312fc178

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C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe

MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe

MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build2.exe

MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\3b8b73b0-f258-4333-87b9-1b72fc39fa2e\build3.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\b851bd51-9289-4e7c-8002-4b1a87f86ec5\fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed.exe

MD5
3fd6740067a6944c5c8b99fef52c09d7

SHA1
909a2cb9b4a660007a3c56e767c595c2fa640237

SHA256
fd77cd0cd6c3dce0f622d626ab4d6d622a33b0de80d499f3ec04b788705b55ed

SHA512
66f1a44ab4ef8cbf2afe8b6a16f719974e844d6e4c84b647dbf644b020d5da46ce987d7f00524aef7a4a2b8fb6cc533a770f177edb81e04f89a4013fb2f8b27b

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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\ProgramData\mozglue.dll

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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\ProgramData\nss3.dll

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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memory/516-122-0x0000000000000000-mapping.dmp

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memory/632-154-0x0000000000000000-mapping.dmp

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memory/668-131-0x0000000000000000-mapping.dmp

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memory/668-134-0x0000000003009000-0x0000000003085000-memory.dmp

Filesize
496KB

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memory/668-148-0x0000000004C40000-0x0000000004D16000-memory.dmp

Filesize
856KB

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memory/724-143-0x0000000003250000-0x00000000032FE000-memory.dmp

Filesize
696KB

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memory/724-135-0x0000000000000000-mapping.dmp

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memory/964-149-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/964-145-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/964-146-0x00000000004A18CD-mapping.dmp

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memory/1084-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/1084-125-0x0000000000424141-mapping.dmp

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memory/1568-168-0x00000000032A0000-0x00000000032A4000-memory.dmp

Filesize
16KB

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memory/2008-120-0x0000000000000000-mapping.dmp

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memory/2244-152-0x0000000000000000-mapping.dmp

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memory/3468-118-0x0000000000424141-mapping.dmp

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memory/3468-117-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3468-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3572-167-0x0000000000000000-mapping.dmp

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memory/3676-140-0x0000000000401AFA-mapping.dmp

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memory/3676-139-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/3676-144-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/3716-115-0x00000000012F0000-0x0000000001381000-memory.dmp

Filesize
580KB

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memory/3716-116-0x00000000013D0000-0x00000000014EB000-memory.dmp

Filesize
1.1MB

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memory/3720-165-0x0000000000401AFA-mapping.dmp

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memory/3744-142-0x0000000000000000-mapping.dmp

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memory/3784-170-0x000000000353E000-0x000000000354E000-memory.dmp

Filesize
64KB

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memory/3848-153-0x0000000000000000-mapping.dmp

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memory/4064-172-0x0000000000401AFA-mapping.dmp

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