glupteba | 512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914

Analysis

max time kernel
150s
max time network
151s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
02-02-2023 17:02

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General

Target

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Size

4.0MB
MD5

9eb42dc40f9b11a721452d517768139d
SHA1

b0661a12a12f3a3f32023a5b897717f9754acd16
SHA256

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914
SHA512

c92e9d6a4013b1076cc79348a7b7d5b45424b647a64ff7d5e1f69ca212a34047773bfa9506420ba9c11d1a574cdb9b5be3e98df40d9704f599997b19357e677f
SSDEEP

98304:Im7WTQTvr/ZyEza7Zl5dQUmp6wPih2/o2Qr:IQvLjZrzuZl5c6wPiw/Rg

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:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3736 netsh.exe
Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

4792 csrss.exe
2172 injector.exe

pid	process
3736	netsh.exe

pid	process
4792	csrss.exe
2172	injector.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\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:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe

description	ioc	process
File opened for modification	C:\Windows\rss	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
File created	C:\Windows\rss\csrss.exe	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.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

1432 schtasks.exe
2164 schtasks.exe

pid	process
1432	schtasks.exe
2164	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exenetsh.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.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"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.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"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.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"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
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,-651 = "AUS Central Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.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"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)"	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exeinjector.execsrss.exe

pid	process
2916	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
2916	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
4792	csrss.exe
4792	csrss.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
4792	csrss.exe
4792	csrss.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe
2172	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	2916	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Token: SeImpersonatePrivilege	2916	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
Token: SeSystemEnvironmentPrivilege	4792	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.execmd.execsrss.exe

description	pid	process	target process
PID 4968 wrote to memory of 4220	4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe	cmd.exe
PID 4968 wrote to memory of 4220	4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe	cmd.exe
PID 4220 wrote to memory of 3736	4220	cmd.exe	netsh.exe
PID 4220 wrote to memory of 3736	4220	cmd.exe	netsh.exe
PID 4968 wrote to memory of 4792	4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe	csrss.exe
PID 4968 wrote to memory of 4792	4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe	csrss.exe
PID 4968 wrote to memory of 4792	4968	512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe	csrss.exe
PID 4792 wrote to memory of 2172	4792	csrss.exe	injector.exe
PID 4792 wrote to memory of 2172	4792	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
"C:\Users\Admin\AppData\Local\Temp\512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2916

C:\Users\Admin\AppData\Local\Temp\512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.exe
"C:\Users\Admin\AppData\Local\Temp\512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914.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:4968

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:4220

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:3736

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:4792

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:1432

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1268

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:2172

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:2164

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
4.0MB

MD5
9eb42dc40f9b11a721452d517768139d

SHA1
b0661a12a12f3a3f32023a5b897717f9754acd16

SHA256
512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914

SHA512
c92e9d6a4013b1076cc79348a7b7d5b45424b647a64ff7d5e1f69ca212a34047773bfa9506420ba9c11d1a574cdb9b5be3e98df40d9704f599997b19357e677f

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

MD5
9eb42dc40f9b11a721452d517768139d

SHA1
b0661a12a12f3a3f32023a5b897717f9754acd16

SHA256
512b845b1bd43ff794453607f42fb7c2c95580fb45f1f9e4fab1da689f35a914

SHA512
c92e9d6a4013b1076cc79348a7b7d5b45424b647a64ff7d5e1f69ca212a34047773bfa9506420ba9c11d1a574cdb9b5be3e98df40d9704f599997b19357e677f

Download Submit
memory/2172-377-0x0000000000000000-mapping.dmp

Download
memory/2916-159-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-158-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-125-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-126-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-128-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-127-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-129-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-130-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-131-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-132-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-133-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-134-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-135-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-136-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-137-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-138-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-139-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-140-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-141-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-142-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-143-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-145-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-146-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-147-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-148-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-149-0x0000000002B60000-0x0000000002F4A000-memory.dmp

Filesize
3.9MB

Download
memory/2916-150-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-152-0x0000000002F50000-0x00000000037C7000-memory.dmp

Filesize
8.5MB

Download
memory/2916-151-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-162-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-154-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2916-156-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-155-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-157-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-164-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-123-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-160-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-161-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-153-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-120-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-124-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-166-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-165-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-167-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-168-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-169-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-170-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-171-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-172-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-174-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-173-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-175-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-176-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-177-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-178-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-180-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-179-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-181-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-182-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-183-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-184-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-186-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-185-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-187-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-248-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2916-121-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-163-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/2916-122-0x0000000077570000-0x00000000776FE000-memory.dmp

Filesize
1.6MB

Download
memory/3736-297-0x0000000000000000-mapping.dmp

Download
memory/4220-296-0x0000000000000000-mapping.dmp

Download
memory/4792-342-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/4792-348-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4792-301-0x0000000000000000-mapping.dmp

Download
memory/4792-383-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/4792-384-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4968-298-0x0000000002AD0000-0x0000000002EC2000-memory.dmp

Filesize
3.9MB

Download
memory/4968-299-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4968-309-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download