glupteba | 2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696

Analysis

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

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
16/05/2024, 22:51

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General

Target
2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Size 4.1MB
Sample240516-2tb2rscf95
SHA256 2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696
MD5 a2ccc6e42cd25f06fed4919b03b5f7f0
SHA1 8e673b0281e296719b990093c3f4f45bf83600a5
SHA512 7769553351b6282dbc3f45c87ddea63667e01a4c7dba380a89065e0188b250f996f44ab26fc40537cc2e36360e0efca2adf720c69f0764874a86d02f9608a246
SSDEEP 98304:AxyFZ/ptHkBlR0WKPFUt+dnuwR0Tu4cboxMg:mwhH+ralkP/bug
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit trojan upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 34 IoCs

resource	yara_rule
behavioral2/memory/3560-2-0x0000000002D90000-0x000000000367B000-memory.dmp	family_glupteba
behavioral2/memory/3560-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3560-44-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3560-303-0x0000000002D90000-0x000000000367B000-memory.dmp	family_glupteba
behavioral2/memory/3560-305-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3316-553-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3316-1022-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3316-1034-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1279-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1766-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1776-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1777-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1779-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1781-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1783-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1785-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1787-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1789-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1792-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1793-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1795-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1797-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1800-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1801-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1803-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1805-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1808-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1809-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1811-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1813-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1816-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1817-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1819-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2916-1821-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5112	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
2916	csrss.exe
4156	injector.exe
1208	windefender.exe
3932	windefender.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000001abb6-1769.dat	upx
behavioral2/memory/1208-1770-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3932-1773-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1208-1775-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3932-1778-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3932-1782-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3932-1788-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1739856679-3467441365-73334005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1739856679-3467441365-73334005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.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

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
File created	C:\Windows\rss\csrss.exe	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
5068	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4552	powershell.exe
4304	powershell.exe
508	powershell.exe
4132	powershell.exe
3828	powershell.exe
2464	powershell.exe
3968	powershell.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/Job

T1053

pid	Process
1828	schtasks.exe
2056	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	powershell.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3828	powershell.exe
3828	powershell.exe
3828	powershell.exe
3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
2464	powershell.exe
2464	powershell.exe
2464	powershell.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
3968	powershell.exe
3968	powershell.exe
3968	powershell.exe
4552	powershell.exe
4552	powershell.exe
4552	powershell.exe
4304	powershell.exe
4304	powershell.exe
4304	powershell.exe
508	powershell.exe
508	powershell.exe
508	powershell.exe
4132	powershell.exe
4132	powershell.exe
4132	powershell.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
2916	csrss.exe
2916	csrss.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
2916	csrss.exe
2916	csrss.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
2916	csrss.exe
2916	csrss.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe
4156	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	3828	powershell.exe
Token: SeDebugPrivilege	3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Token: SeImpersonatePrivilege	3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
Token: SeDebugPrivilege	2464	powershell.exe
Token: SeDebugPrivilege	3968	powershell.exe
Token: SeDebugPrivilege	4552	powershell.exe
Token: SeDebugPrivilege	4304	powershell.exe
Token: SeDebugPrivilege	508	powershell.exe
Token: SeDebugPrivilege	4132	powershell.exe
Token: SeSystemEnvironmentPrivilege	2916	csrss.exe
Token: SeSecurityPrivilege	5068	sc.exe
Token: SeSecurityPrivilege	5068	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 3828	3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	74
PID 3560 wrote to memory of 3828	3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	74
PID 3560 wrote to memory of 3828	3560	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	74
PID 3316 wrote to memory of 2464	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	79
PID 3316 wrote to memory of 2464	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	79
PID 3316 wrote to memory of 2464	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	79
PID 3316 wrote to memory of 1736	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	81
PID 3316 wrote to memory of 1736	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	81
PID 1736 wrote to memory of 5112	1736	cmd.exe	83
PID 1736 wrote to memory of 5112	1736	cmd.exe	83
PID 3316 wrote to memory of 3968	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	84
PID 3316 wrote to memory of 3968	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	84
PID 3316 wrote to memory of 3968	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	84
PID 3316 wrote to memory of 4552	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	86
PID 3316 wrote to memory of 4552	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	86
PID 3316 wrote to memory of 4552	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	86
PID 3316 wrote to memory of 2916	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	88
PID 3316 wrote to memory of 2916	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	88
PID 3316 wrote to memory of 2916	3316	2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe	88
PID 2916 wrote to memory of 4304	2916	csrss.exe	89
PID 2916 wrote to memory of 4304	2916	csrss.exe	89
PID 2916 wrote to memory of 4304	2916	csrss.exe	89
PID 2916 wrote to memory of 508	2916	csrss.exe	96
PID 2916 wrote to memory of 508	2916	csrss.exe	96
PID 2916 wrote to memory of 508	2916	csrss.exe	96
PID 2916 wrote to memory of 4132	2916	csrss.exe	98
PID 2916 wrote to memory of 4132	2916	csrss.exe	98
PID 2916 wrote to memory of 4132	2916	csrss.exe	98
PID 2916 wrote to memory of 4156	2916	csrss.exe	100
PID 2916 wrote to memory of 4156	2916	csrss.exe	100
PID 1208 wrote to memory of 3424	1208	windefender.exe	107
PID 1208 wrote to memory of 3424	1208	windefender.exe	107
PID 1208 wrote to memory of 3424	1208	windefender.exe	107
PID 3424 wrote to memory of 5068	3424	cmd.exe	108
PID 3424 wrote to memory of 5068	3424	cmd.exe	108
PID 3424 wrote to memory of 5068	3424	cmd.exe	108

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
"C:\Users\Admin\AppData\Local\Temp\2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3828
- C:\Users\Admin\AppData\Local\Temp\2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe
  "C:\Users\Admin\AppData\Local\Temp\2b4ce6bcfe7a1eea5db3bb288079dd30d06320fb5ad6a7e30db9fe9569c59696.exe"
  2⤵
  - Windows security bypass
  - Windows security modification
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3316
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2464
- - C:\Windows\System32\cmd.exe
    C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1736
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      Modifies data under HKEY_USERS
      PID:5112
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3968
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4552
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2916
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4304
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:1828
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:5076
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:508
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4132
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:4156
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:2056
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1208
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3424
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        Suspicious use of AdjustPrivilegeToken
        
        PID:5068

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_5izj4pln.whj.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5izj4pln.whj.ps1
Size 1B
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
MD5 SHA1 SHA512

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injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d
MD5 db01a2c1c7e70b2b038edf8ad5ad9826
SHA1 540217c647a73bad8d8a79e3a0f3998b5abd199b
SHA512 c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6
MD5 SHA1 SHA512

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