glupteba | 5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a

Analysis

max time kernel
150s
max time network
128s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
28-01-2023 21:47

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General

Target

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Size

4.1MB
MD5

ba48a5c9fe3bf9dab70fe657f23632d4
SHA1

b19295b5ae807d79529019fad1c02539a1ee84d5
SHA256

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a
SHA512

650dc1ffc221ff734de4f5d9c056685454f83fc5121013b68f44b5167a6bda7771e89a6a8b4ba56db62174905993b8c65418d923b85f50658411c7a7ca60c19e
SSDEEP

98304:BcOSPN0ueiVcQ51kmaBVDLp+fpbFwmiNhkVQzmRGopm:BcOSPN09iVV1FstpiLxigVpJm

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:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

5044 csrss.exe
3268 injector.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3568 netsh.exe

pid	process
5044	csrss.exe
3268	injector.exe

pid	process
3568	netsh.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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\""	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops file in Windows directory 2 IoCs

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe

description	ioc	process
File opened for modification	C:\Windows\rss	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
File created	C:\Windows\rss\csrss.exe	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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

1656 schtasks.exe
1520 schtasks.exe

pid	process
1656	schtasks.exe
1520	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exenetsh.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace\Session	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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,-621 = "Korea Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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,-221 = "Alaskan Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	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,-492 = "India Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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,-2182 = "Astrakhan Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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,-872 = "Pakistan Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exeinjector.execsrss.exe

pid	process
4672	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4672	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
5044	csrss.exe
5044	csrss.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
5044	csrss.exe
5044	csrss.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe
3268	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	4672	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Token: SeImpersonatePrivilege	4672	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
Token: SeSystemEnvironmentPrivilege	5044	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.execmd.execsrss.exe

description	pid	process	target process
PID 4804 wrote to memory of 4064	4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe	cmd.exe
PID 4804 wrote to memory of 4064	4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe	cmd.exe
PID 4064 wrote to memory of 3568	4064	cmd.exe	netsh.exe
PID 4064 wrote to memory of 3568	4064	cmd.exe	netsh.exe
PID 4804 wrote to memory of 5044	4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe	csrss.exe
PID 4804 wrote to memory of 5044	4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe	csrss.exe
PID 4804 wrote to memory of 5044	4804	5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe	csrss.exe
PID 5044 wrote to memory of 3268	5044	csrss.exe	injector.exe
PID 5044 wrote to memory of 3268	5044	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
"C:\Users\Admin\AppData\Local\Temp\5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4672

C:\Users\Admin\AppData\Local\Temp\5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.exe
"C:\Users\Admin\AppData\Local\Temp\5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a.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:4804

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:4064

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:3568

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:5044

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:1656

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:680

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:3268

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:1520

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
4.1MB

MD5
ba48a5c9fe3bf9dab70fe657f23632d4

SHA1
b19295b5ae807d79529019fad1c02539a1ee84d5

SHA256
5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a

SHA512
650dc1ffc221ff734de4f5d9c056685454f83fc5121013b68f44b5167a6bda7771e89a6a8b4ba56db62174905993b8c65418d923b85f50658411c7a7ca60c19e

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

MD5
ba48a5c9fe3bf9dab70fe657f23632d4

SHA1
b19295b5ae807d79529019fad1c02539a1ee84d5

SHA256
5b491c6459678855fd61ad419348f74a64966cc8d8d4ce79e1997e88ec75559a

SHA512
650dc1ffc221ff734de4f5d9c056685454f83fc5121013b68f44b5167a6bda7771e89a6a8b4ba56db62174905993b8c65418d923b85f50658411c7a7ca60c19e

Download Submit
memory/3268-372-0x0000000000000000-mapping.dmp

Download
memory/3568-294-0x0000000000000000-mapping.dmp

Download
memory/4064-293-0x0000000000000000-mapping.dmp

Download
memory/4672-151-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-115-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-119-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-120-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-121-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-122-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-124-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-123-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-125-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-126-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-127-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-128-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-129-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-131-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-132-0x0000000002B30000-0x0000000002F29000-memory.dmp

Filesize
4.0MB

Download
memory/4672-133-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-134-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-135-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-136-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-137-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-138-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-139-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-140-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-141-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-142-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-144-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-143-0x0000000002F30000-0x00000000037A7000-memory.dmp

Filesize
8.5MB

Download
memory/4672-146-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4672-147-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-148-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-149-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-145-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-150-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-117-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-152-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-153-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-166-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-118-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-182-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-157-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-158-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-159-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-160-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-161-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-162-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-163-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-164-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-165-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-154-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-167-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-168-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-169-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-170-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-171-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-172-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-173-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-174-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-175-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-176-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-177-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-178-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-179-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-180-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-181-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-156-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-239-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4672-155-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-116-0x00000000776C0000-0x000000007784E000-memory.dmp

Filesize
1.6MB

Download
memory/4804-300-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4804-278-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4804-274-0x0000000002990000-0x0000000002D7D000-memory.dmp

Filesize
3.9MB

Download
memory/5044-296-0x0000000000000000-mapping.dmp

Download
memory/5044-347-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/5044-350-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5044-378-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/5044-379-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download