glupteba | 615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b

Analysis

max time kernel
150s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
23-09-2022 09:24

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General

Target

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Size

4.0MB
MD5

b290eb903540f5f6678d37feaae359f1
SHA1

e3c17bcd1bd1eee6ffa30d8a9bfc4ec92ced20d1
SHA256

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b
SHA512

35c41753be6c885cb7c933b1ee4a0b5d65b053c671fff9da81dae0d0810791c52c34782bc9aa2bc7753067c67faf48cf90760edf1ff6f0a389d3a7d9bf79d758
SSDEEP

98304:id8f1PNTuEXZJ29zoCnUWTpk5FSklO2nHcYx+/Kh:a6UES5K1O2nHZxDh

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:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

4764 csrss.exe
5032 injector.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3904 netsh.exe

pid	process
4764	csrss.exe
5032	injector.exe

pid	process
3904	netsh.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\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
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops file in Windows directory 2 IoCs

Processes:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

description	ioc	process
File opened for modification	C:\Windows\rss	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
File created	C:\Windows\rss\csrss.exe	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.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

772 schtasks.exe
4868 schtasks.exe

pid	process
772	schtasks.exe
4868	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

csrss.exe615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exeinjector.execsrss.exe

pid	process
2752	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
2752	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
4764	csrss.exe
4764	csrss.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
4764	csrss.exe
4764	csrss.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe
5032	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	2752	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Token: SeImpersonatePrivilege	2752	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
Token: SeSystemEnvironmentPrivilege	4764	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.execmd.execsrss.exe

description	pid	process	target process
PID 4548 wrote to memory of 2244	4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe	cmd.exe
PID 4548 wrote to memory of 2244	4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe	cmd.exe
PID 2244 wrote to memory of 3904	2244	cmd.exe	netsh.exe
PID 2244 wrote to memory of 3904	2244	cmd.exe	netsh.exe
PID 4548 wrote to memory of 4764	4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe	csrss.exe
PID 4548 wrote to memory of 4764	4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe	csrss.exe
PID 4548 wrote to memory of 4764	4548	615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe	csrss.exe
PID 4764 wrote to memory of 5032	4764	csrss.exe	injector.exe
PID 4764 wrote to memory of 5032	4764	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
"C:\Users\Admin\AppData\Local\Temp\615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2752

C:\Users\Admin\AppData\Local\Temp\615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.exe
"C:\Users\Admin\AppData\Local\Temp\615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b.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:4548

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:2244

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
PID:3904

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764

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:772

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:5080

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:5032

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:4868

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

Web Service

T1102

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
4.0MB

MD5
b290eb903540f5f6678d37feaae359f1

SHA1
e3c17bcd1bd1eee6ffa30d8a9bfc4ec92ced20d1

SHA256
615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b

SHA512
35c41753be6c885cb7c933b1ee4a0b5d65b053c671fff9da81dae0d0810791c52c34782bc9aa2bc7753067c67faf48cf90760edf1ff6f0a389d3a7d9bf79d758

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.0MB

MD5
b290eb903540f5f6678d37feaae359f1

SHA1
e3c17bcd1bd1eee6ffa30d8a9bfc4ec92ced20d1

SHA256
615b7df8152c1897c04478b95c2425ee2de27f8c3ce6974cd4f73eff130eaa2b

SHA512
35c41753be6c885cb7c933b1ee4a0b5d65b053c671fff9da81dae0d0810791c52c34782bc9aa2bc7753067c67faf48cf90760edf1ff6f0a389d3a7d9bf79d758

Download Submit
memory/2244-297-0x0000000000000000-mapping.dmp

Download
memory/2752-160-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-248-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2752-122-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-123-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-124-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-125-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-126-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-127-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-128-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-129-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-130-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-159-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-132-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-133-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-134-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-136-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-137-0x0000000002A90000-0x0000000002E7B000-memory.dmp

Filesize
3.9MB

Download
memory/2752-138-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-140-0x0000000002E80000-0x00000000036F6000-memory.dmp

Filesize
8.5MB

Download
memory/2752-141-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-139-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-142-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-143-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-144-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-146-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-147-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-145-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2752-148-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-149-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-150-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-151-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-152-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-153-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-161-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-155-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-156-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-157-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-120-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-131-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-121-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-154-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-162-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-163-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-164-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-165-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-166-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-167-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-168-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-169-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-170-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-171-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-172-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-173-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-174-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-175-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-176-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-177-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-178-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-179-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-180-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-181-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-182-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-183-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-184-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-185-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-186-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-187-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-158-0x00000000772C0000-0x000000007744E000-memory.dmp

Filesize
1.6MB

Download
memory/2752-251-0x0000000002E80000-0x00000000036F6000-memory.dmp

Filesize
8.5MB

Download
memory/3904-299-0x0000000000000000-mapping.dmp

Download
memory/4548-298-0x0000000002910000-0x0000000002CFF000-memory.dmp

Filesize
3.9MB

Download
memory/4548-300-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4548-308-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4764-302-0x0000000000000000-mapping.dmp

Download
memory/4764-364-0x0000000002D00000-0x00000000030EA000-memory.dmp

Filesize
3.9MB

Download
memory/4764-365-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4764-384-0x0000000002D00000-0x00000000030EA000-memory.dmp

Filesize
3.9MB

Download
memory/4764-385-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5032-380-0x0000000000000000-mapping.dmp

Download