glupteba | 48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f

Analysis

max time kernel
150s
max time network
131s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
02-02-2023 13:48

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General

Target

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Size

4.1MB
MD5

3ac01463fe67c85d39bde0138dd6da3e
SHA1

c33261d91d7b81819b03d6acc0986d755f3c8b62
SHA256

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f
SHA512

eac338eac7357aca9bc5079ad62ea9167c189b6aea362835d78d1fd322fa35484bdd380391db5b16df88be7380161238414f130c4303f26f657dcbef82393186
SSDEEP

98304:TNlctuCZGujbYVe9J4y68PXhxaOlwaccTVXNQqb7w:pznu3YVEKy6uhxvlNBnw

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:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

4048 csrss.exe
4748 injector.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3732 netsh.exe

pid	process
4048	csrss.exe
4748	injector.exe

pid	process
3732	netsh.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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\""	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Windows directory 2 IoCs

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe

description	ioc	process
File opened for modification	C:\Windows\rss	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
File created	C:\Windows\rss\csrss.exe	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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

1128 schtasks.exe
2720 schtasks.exe

pid	process
1128	schtasks.exe
2720	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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,-1841 = "Russia TZ 4 Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exeinjector.execsrss.exe

pid	process
2676	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
2676	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4048	csrss.exe
4048	csrss.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4048	csrss.exe
4048	csrss.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	2676	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Token: SeImpersonatePrivilege	2676	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
Token: SeSystemEnvironmentPrivilege	4048	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.execmd.execsrss.exe

description	pid	process	target process
PID 4248 wrote to memory of 4896	4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe	cmd.exe
PID 4248 wrote to memory of 4896	4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe	cmd.exe
PID 4896 wrote to memory of 3732	4896	cmd.exe	netsh.exe
PID 4896 wrote to memory of 3732	4896	cmd.exe	netsh.exe
PID 4248 wrote to memory of 4048	4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe	csrss.exe
PID 4248 wrote to memory of 4048	4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe	csrss.exe
PID 4248 wrote to memory of 4048	4248	48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe	csrss.exe
PID 4048 wrote to memory of 4748	4048	csrss.exe	injector.exe
PID 4048 wrote to memory of 4748	4048	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
"C:\Users\Admin\AppData\Local\Temp\48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2676

C:\Users\Admin\AppData\Local\Temp\48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.exe
"C:\Users\Admin\AppData\Local\Temp\48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f.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:4248

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:4896

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:3732

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:4048

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:1128

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1472

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:4748

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:2720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

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

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

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

MD5
3ac01463fe67c85d39bde0138dd6da3e

SHA1
c33261d91d7b81819b03d6acc0986d755f3c8b62

SHA256
48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f

SHA512
eac338eac7357aca9bc5079ad62ea9167c189b6aea362835d78d1fd322fa35484bdd380391db5b16df88be7380161238414f130c4303f26f657dcbef82393186

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

MD5
3ac01463fe67c85d39bde0138dd6da3e

SHA1
c33261d91d7b81819b03d6acc0986d755f3c8b62

SHA256
48932f3b24ae5e25691ca74d58fa83dd63131f4408c47f16f91ffb9519876d1f

SHA512
eac338eac7357aca9bc5079ad62ea9167c189b6aea362835d78d1fd322fa35484bdd380391db5b16df88be7380161238414f130c4303f26f657dcbef82393186

Download Submit
memory/2676-154-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-151-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-119-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-120-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-121-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-123-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-122-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-125-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-124-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-126-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-127-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-156-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-129-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-130-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-131-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-132-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-133-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-134-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-135-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-136-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-137-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-138-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-140-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-141-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-142-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-143-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-144-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-145-0x0000000002C60000-0x000000000304E000-memory.dmp

Filesize
3.9MB

Download
memory/2676-146-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-148-0x0000000003050000-0x00000000038C7000-memory.dmp

Filesize
8.5MB

Download
memory/2676-147-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-149-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2676-150-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-158-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-152-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-153-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-117-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-155-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-128-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-115-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-118-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-159-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-161-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-160-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-162-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-163-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-164-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-165-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-166-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-167-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-168-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-169-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-170-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-171-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-172-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-174-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-175-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-173-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-176-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-177-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-178-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-179-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-180-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-181-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-182-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-244-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2676-116-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-157-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/3732-294-0x0000000000000000-mapping.dmp

Download
memory/4048-340-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/4048-341-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4048-296-0x0000000000000000-mapping.dmp

Download
memory/4048-378-0x0000000003000000-0x00000000033EA000-memory.dmp

Filesize
3.9MB

Download
memory/4048-379-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4248-280-0x0000000002AA0000-0x0000000002E8B000-memory.dmp

Filesize
3.9MB

Download
memory/4248-283-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4248-301-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4748-372-0x0000000000000000-mapping.dmp

Download
memory/4896-293-0x0000000000000000-mapping.dmp

Download