glupteba | cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c

General

Target

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Size

4.1MB
MD5

75d8e81ccb1cc5527ffa3cef4663588a
SHA1

c8dfa493dde664679c04e1472bcf4fdf650b039f
SHA256

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c
SHA512

69532211543705df29982564ac5fbcc0adadf66dac3b801a1f0a232a914c30793675fe40559a788e8971b6357eb0b77486919e9bc3ce0c42a1b429dc10cecb51
SSDEEP

98304:ifP6JKXgGxPRAyMQc4SUMpUUUoMXvhLnTdH3V:ifP6cXlStQRuY53T

Score

10^/10

glupteba discovery dropper evasion loader persistence upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs

Processes:

svchost.exe

description	pid	process	target process
PID 3320 created 3576	3320	svchost.exe	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
PID 3320 created 4224	3320	svchost.exe	csrss.exe
PID 3320 created 4224	3320	svchost.exe	csrss.exe
PID 3320 created 4224	3320	svchost.exe	csrss.exe

Executes dropped EXE 3 IoCs

Processes:

csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exe

pid process

4224 csrss.exe
5068 injector.exe
5024 f801950a962ddba14caaa44bf084b55c.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4132 netsh.exe

pid	process
4224	csrss.exe
5068	injector.exe
5024	f801950a962ddba14caaa44bf084b55c.exe

pid	process
4132	netsh.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
behavioral1/memory/5024-157-0x0000000000400000-0x0000000000C25000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

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

Query Registry
T1012
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops file in Windows directory 2 IoCs

Processes:

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe

description	ioc	process
File opened for modification	C:\Windows\rss	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
File created	C:\Windows\rss\csrss.exe	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.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

4324 schtasks.exe
2484 schtasks.exe

pid	process
4324	schtasks.exe
2484	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.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"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.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"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.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"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	csrss.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.execc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exeinjector.execsrss.exe

pid	process
3576	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
3576	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
4224	csrss.exe
4224	csrss.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
4224	csrss.exe
4224	csrss.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe
5068	injector.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exesvchost.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	3576	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Token: SeImpersonatePrivilege	3576	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
Token: SeTcbPrivilege	3320	svchost.exe
Token: SeTcbPrivilege	3320	svchost.exe
Token: SeBackupPrivilege	3320	svchost.exe
Token: SeRestorePrivilege	3320	svchost.exe
Token: SeBackupPrivilege	3320	svchost.exe
Token: SeRestorePrivilege	3320	svchost.exe
Token: SeBackupPrivilege	3320	svchost.exe
Token: SeRestorePrivilege	3320	svchost.exe
Token: SeBackupPrivilege	3320	svchost.exe
Token: SeRestorePrivilege	3320	svchost.exe
Token: SeSystemEnvironmentPrivilege	4224	csrss.exe
Token: SeBackupPrivilege	3320	svchost.exe
Token: SeRestorePrivilege	3320	svchost.exe
Token: SeBackupPrivilege	3320	svchost.exe
Token: SeRestorePrivilege	3320	svchost.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

svchost.execc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.execmd.execsrss.exe

description	pid	process	target process
PID 3320 wrote to memory of 4748	3320	svchost.exe	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
PID 3320 wrote to memory of 4748	3320	svchost.exe	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
PID 3320 wrote to memory of 4748	3320	svchost.exe	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
PID 4748 wrote to memory of 2184	4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe	cmd.exe
PID 4748 wrote to memory of 2184	4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe	cmd.exe
PID 2184 wrote to memory of 4132	2184	cmd.exe	netsh.exe
PID 2184 wrote to memory of 4132	2184	cmd.exe	netsh.exe
PID 4748 wrote to memory of 4224	4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe	csrss.exe
PID 4748 wrote to memory of 4224	4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe	csrss.exe
PID 4748 wrote to memory of 4224	4748	cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe	csrss.exe
PID 3320 wrote to memory of 4324	3320	svchost.exe	schtasks.exe
PID 3320 wrote to memory of 4324	3320	svchost.exe	schtasks.exe
PID 3320 wrote to memory of 1140	3320	svchost.exe	schtasks.exe
PID 3320 wrote to memory of 1140	3320	svchost.exe	schtasks.exe
PID 4224 wrote to memory of 5068	4224	csrss.exe	injector.exe
PID 4224 wrote to memory of 5068	4224	csrss.exe	injector.exe
PID 3320 wrote to memory of 2484	3320	svchost.exe	schtasks.exe
PID 3320 wrote to memory of 2484	3320	svchost.exe	schtasks.exe
PID 4224 wrote to memory of 5024	4224	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 4224 wrote to memory of 5024	4224	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 4224 wrote to memory of 5024	4224	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe

C:\Users\Admin\AppData\Local\Temp\cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
"C:\Users\Admin\AppData\Local\Temp\cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3576

C:\Users\Admin\AppData\Local\Temp\cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe
"C:\Users\Admin\AppData\Local\Temp\cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c.exe"
2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4748

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:2184

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:4132

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:4224

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:4324

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1140

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:5068

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:2484

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
4⤵
- Executes dropped EXE
PID:5024

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3320

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

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:\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
75d8e81ccb1cc5527ffa3cef4663588a

SHA1
c8dfa493dde664679c04e1472bcf4fdf650b039f

SHA256
cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c

SHA512
69532211543705df29982564ac5fbcc0adadf66dac3b801a1f0a232a914c30793675fe40559a788e8971b6357eb0b77486919e9bc3ce0c42a1b429dc10cecb51

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

MD5
75d8e81ccb1cc5527ffa3cef4663588a

SHA1
c8dfa493dde664679c04e1472bcf4fdf650b039f

SHA256
cc199c666cc317b3f1208ef15a531bdacc813013562755ef0773e01592c8e36c

SHA512
69532211543705df29982564ac5fbcc0adadf66dac3b801a1f0a232a914c30793675fe40559a788e8971b6357eb0b77486919e9bc3ce0c42a1b429dc10cecb51

Download Submit
memory/1140-148-0x0000000000000000-mapping.dmp

Download
memory/2184-137-0x0000000000000000-mapping.dmp

Download
memory/2484-152-0x0000000000000000-mapping.dmp

Download
memory/3576-136-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/3576-132-0x0000000004DB2000-0x000000000519B000-memory.dmp

Filesize
3.9MB

Download
memory/3576-134-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/3576-133-0x00000000051A0000-0x0000000005A17000-memory.dmp

Filesize
8.5MB

Download
memory/4132-138-0x0000000000000000-mapping.dmp

Download
memory/4224-153-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/4224-145-0x0000000005200000-0x00000000055E9000-memory.dmp

Filesize
3.9MB

Download
memory/4224-158-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/4224-146-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/4224-141-0x0000000000000000-mapping.dmp

Download
memory/4324-147-0x0000000000000000-mapping.dmp

Download
memory/4748-139-0x0000000004BE3000-0x0000000004FCC000-memory.dmp

Filesize
3.9MB

Download
memory/4748-140-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/4748-144-0x0000000000400000-0x0000000002F78000-memory.dmp

Filesize
43.5MB

Download
memory/4748-135-0x0000000000000000-mapping.dmp

Download
memory/5024-154-0x0000000000000000-mapping.dmp

Download
memory/5024-157-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/5068-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads