glupteba | c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0

Analysis

max time kernel
161s
max time network
158s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
29-01-2023 12:48

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General

Target

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Size

4.1MB
MD5

0f94ad391fdd0be0fa7ca02e6997cbfa
SHA1

378c3458379ffbd8af45453961f1288d0adfdde7
SHA256

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0
SHA512

30a1ade9670227a2cc709bd13e50d47cb5dd2f5168c57994909676f8d17b8582630a77d0c82ce76cb841299893418b5ce98502ed963982ca7217c9c4daa3e657
SSDEEP

98304:WZWqEuz9lwfPwwwhFXBUzcboLtY5KGBLd7CfaXh:eWQhlw3whFazcboe5Kkd7Cf8h

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:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

4640 csrss.exe
2188 injector.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4756 netsh.exe

pid	process
4640	csrss.exe
2188	injector.exe

pid	process
4756	netsh.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

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

Query Registry
T1012

Drops file in Windows directory 2 IoCs

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

description	ioc	process
File opened for modification	C:\Windows\rss	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
File created	C:\Windows\rss\csrss.exe	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.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

2732 schtasks.exe
188 schtasks.exe

pid	process
2732	schtasks.exe
188	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.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"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.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"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.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"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.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"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exec004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exeinjector.execsrss.exe

pid	process
4820	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4820	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
4640	csrss.exe
4640	csrss.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
4640	csrss.exe
4640	csrss.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe
2188	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	4820	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Token: SeImpersonatePrivilege	4820	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
Token: SeSystemEnvironmentPrivilege	4640	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.execmd.execsrss.exe

description	pid	process	target process
PID 4032 wrote to memory of 4100	4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe	cmd.exe
PID 4032 wrote to memory of 4100	4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe	cmd.exe
PID 4100 wrote to memory of 4756	4100	cmd.exe	netsh.exe
PID 4100 wrote to memory of 4756	4100	cmd.exe	netsh.exe
PID 4032 wrote to memory of 4640	4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe	csrss.exe
PID 4032 wrote to memory of 4640	4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe	csrss.exe
PID 4032 wrote to memory of 4640	4032	c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe	csrss.exe
PID 4640 wrote to memory of 2188	4640	csrss.exe	injector.exe
PID 4640 wrote to memory of 2188	4640	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
"C:\Users\Admin\AppData\Local\Temp\c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4820

C:\Users\Admin\AppData\Local\Temp\c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.exe
"C:\Users\Admin\AppData\Local\Temp\c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0.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:4032

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:4100

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:4756

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4640

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:188

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:272

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:2188

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:2732

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

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
0f94ad391fdd0be0fa7ca02e6997cbfa

SHA1
378c3458379ffbd8af45453961f1288d0adfdde7

SHA256
c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0

SHA512
30a1ade9670227a2cc709bd13e50d47cb5dd2f5168c57994909676f8d17b8582630a77d0c82ce76cb841299893418b5ce98502ed963982ca7217c9c4daa3e657

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

MD5
0f94ad391fdd0be0fa7ca02e6997cbfa

SHA1
378c3458379ffbd8af45453961f1288d0adfdde7

SHA256
c004bc60588b380062ffab5756c1b44b309d9d52821d4beda334958146219ea0

SHA512
30a1ade9670227a2cc709bd13e50d47cb5dd2f5168c57994909676f8d17b8582630a77d0c82ce76cb841299893418b5ce98502ed963982ca7217c9c4daa3e657

Download Submit
memory/2188-380-0x0000000000000000-mapping.dmp

Download
memory/4032-302-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4032-301-0x0000000002920000-0x0000000002D16000-memory.dmp

Filesize
4.0MB

Download
memory/4032-309-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4100-299-0x0000000000000000-mapping.dmp

Download
memory/4640-304-0x0000000000000000-mapping.dmp

Download
memory/4640-349-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4640-344-0x0000000002F00000-0x00000000032EA000-memory.dmp

Filesize
3.9MB

Download
memory/4640-385-0x0000000002F00000-0x00000000032EA000-memory.dmp

Filesize
3.9MB

Download
memory/4640-387-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4756-300-0x0000000000000000-mapping.dmp

Download
memory/4820-158-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-166-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-132-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-133-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-134-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-136-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-137-0x0000000002B80000-0x0000000002F6C000-memory.dmp

Filesize
3.9MB

Download
memory/4820-138-0x0000000002F70000-0x00000000037E7000-memory.dmp

Filesize
8.5MB

Download
memory/4820-139-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-140-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-141-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-142-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-143-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-144-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-145-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-146-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-147-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4820-148-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-149-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-150-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-151-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-152-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-153-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-154-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-155-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-156-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-157-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-130-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-159-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-160-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-161-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-162-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-163-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-164-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-165-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-131-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-167-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-168-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-169-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-170-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-171-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-172-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-173-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-174-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-175-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-177-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-176-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-178-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-179-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-180-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-181-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-182-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-183-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-184-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-185-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-186-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-129-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-128-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-127-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-126-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-125-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-124-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-123-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-122-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-121-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-120-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-187-0x0000000077600000-0x000000007778E000-memory.dmp

Filesize
1.6MB

Download
memory/4820-224-0x0000000002B80000-0x0000000002F6C000-memory.dmp

Filesize
3.9MB

Download
memory/4820-226-0x0000000002F70000-0x00000000037E7000-memory.dmp

Filesize
8.5MB

Download
memory/4820-244-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4820-253-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download