glupteba | d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0

Analysis

max time kernel
150s
max time network
139s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
06-02-2023 18:46

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General

Target

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Size

4.1MB
MD5

18fc269bcddafa2e1261797934e05f63
SHA1

dd8a39c162086723b0af8fbb4b4ffd001d243392
SHA256

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0
SHA512

9e203357162dff8c88527c1c7a50efe6911c49cbaef56bb2f45345f9ecc669c26bf5819bce7a78e33a4e7db3bdaf64eb8f73c69db1ccbaa3de880fa9b53d3d62
SSDEEP

98304:eI0kO+YJm9oqEHC6kB+4iXum2rgLhpxv6ywV/SjT:eLkO+YJTfC6kBR4ufgL9vLwV/SH

Score

10^/10

glupteba discovery dropper evasion loader persistence trojan

Malware Config

Signatures

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

Windows security bypass 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4516 netsh.exe
Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

4200 csrss.exe
780 injector.exe

pid	process
4516	netsh.exe

pid	process
4200	csrss.exe
780	injector.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\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

Drops file in Windows directory 2 IoCs

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

description	ioc	process
File opened for modification	C:\Windows\rss	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
File created	C:\Windows\rss\csrss.exe	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.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

3264 schtasks.exe
192 schtasks.exe

pid	process
3264	schtasks.exe
192	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

netsh.exed3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exed3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exeinjector.execsrss.exe

pid	process
2436	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
2436	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
4200	csrss.exe
4200	csrss.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
4200	csrss.exe
4200	csrss.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe
780	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	2436	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Token: SeImpersonatePrivilege	2436	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
Token: SeSystemEnvironmentPrivilege	4200	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.execmd.execsrss.exe

description	pid	process	target process
PID 3336 wrote to memory of 3944	3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe	cmd.exe
PID 3336 wrote to memory of 3944	3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe	cmd.exe
PID 3944 wrote to memory of 4516	3944	cmd.exe	netsh.exe
PID 3944 wrote to memory of 4516	3944	cmd.exe	netsh.exe
PID 3336 wrote to memory of 4200	3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe	csrss.exe
PID 3336 wrote to memory of 4200	3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe	csrss.exe
PID 3336 wrote to memory of 4200	3336	d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe	csrss.exe
PID 4200 wrote to memory of 780	4200	csrss.exe	injector.exe
PID 4200 wrote to memory of 780	4200	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
"C:\Users\Admin\AppData\Local\Temp\d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2436

C:\Users\Admin\AppData\Local\Temp\d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe
"C:\Users\Admin\AppData\Local\Temp\d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0.exe"
2⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3336

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:3944

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:4516

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4200

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:3264

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1796

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:780

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:192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
18fc269bcddafa2e1261797934e05f63

SHA1
dd8a39c162086723b0af8fbb4b4ffd001d243392

SHA256
d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0

SHA512
9e203357162dff8c88527c1c7a50efe6911c49cbaef56bb2f45345f9ecc669c26bf5819bce7a78e33a4e7db3bdaf64eb8f73c69db1ccbaa3de880fa9b53d3d62

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
18fc269bcddafa2e1261797934e05f63

SHA1
dd8a39c162086723b0af8fbb4b4ffd001d243392

SHA256
d3543541e12cab84bab960e806ebae9b8670749ad07ba8cc675d4696087cb8f0

SHA512
9e203357162dff8c88527c1c7a50efe6911c49cbaef56bb2f45345f9ecc669c26bf5819bce7a78e33a4e7db3bdaf64eb8f73c69db1ccbaa3de880fa9b53d3d62

Download Submit
memory/780-375-0x0000000000000000-mapping.dmp

Download
memory/2436-156-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-246-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2436-121-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-122-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-124-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-123-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-125-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-126-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-127-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-128-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-129-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-130-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-131-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-132-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-133-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-134-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-136-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-135-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-137-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-138-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-139-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-140-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-141-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-143-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-144-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-145-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-146-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-147-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-148-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-159-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-150-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-151-0x0000000002AC0000-0x0000000002EB4000-memory.dmp

Filesize
4.0MB

Download
memory/2436-152-0x0000000002EC0000-0x0000000003737000-memory.dmp

Filesize
8.5MB

Download
memory/2436-153-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2436-160-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-119-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-157-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-158-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-149-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-120-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-154-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-161-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-162-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-163-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-165-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-167-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-168-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-166-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-164-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-169-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-172-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-174-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-175-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-176-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-173-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-171-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-177-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-178-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-170-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-179-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-181-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-180-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-184-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-185-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-183-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-182-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-155-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/2436-118-0x0000000077830000-0x00000000779BE000-memory.dmp

Filesize
1.6MB

Download
memory/3336-294-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3336-303-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3336-289-0x00000000028B0000-0x0000000002C9F000-memory.dmp

Filesize
3.9MB

Download
memory/3944-296-0x0000000000000000-mapping.dmp

Download
memory/4200-299-0x0000000000000000-mapping.dmp

Download
memory/4200-353-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/4200-358-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4200-381-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/4200-382-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4516-297-0x0000000000000000-mapping.dmp

Download