glupteba | a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d

General

Target

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Size

4.0MB
MD5

4a9d98a181a1bda34120e0d3fac3777a
SHA1

a6ded4591aaa71dc9658e6b50be1c28bb2a9bcb4
SHA256

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d
SHA512

b41944113a4865c25fbae63144b2a30e2ae8ece8589bcc57dc86955fc892c5ef61677cf3b5235ddc8f1b2b3fd4dd7d6da9f44414c0ae68e8d0735969371c1a9d
SSDEEP

98304:Y/aANezRWCg3BMnEavJ9QGbQARmvyMHEjtVA4R3:KaA4z8C0MnPvDAKmvjiv3

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 6 IoCs

Processes:

svchost.exe

description	pid	process	target process
PID 3720 created 1268	3720	svchost.exe	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
PID 3720 created 1784	3720	svchost.exe	csrss.exe
PID 3720 created 1784	3720	svchost.exe	csrss.exe
PID 3720 created 1784	3720	svchost.exe	csrss.exe
PID 3720 created 1380	3720	svchost.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 3720 created 1380	3720	svchost.exe	f801950a962ddba14caaa44bf084b55c.exe

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

712 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exe

pid process

1784 csrss.exe
3660 injector.exe
1380 f801950a962ddba14caaa44bf084b55c.exe

pid	process
712	netsh.exe

pid	process
1784	csrss.exe
3660	injector.exe
1380	f801950a962ddba14caaa44bf084b55c.exe

UPX packed file 5 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
behavioral1/memory/1380-156-0x0000000000400000-0x0000000000C25000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
behavioral1/memory/1380-161-0x0000000000400000-0x0000000000C25000-memory.dmp	upx
behavioral1/memory/1380-163-0x0000000000400000-0x0000000000C25000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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:

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe

description	ioc	process
File opened for modification	C:\Windows\rss	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
File created	C:\Windows\rss\csrss.exe	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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

3044 schtasks.exe
1868 schtasks.exe

pid	process
3044	schtasks.exe
1868	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exea9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exeinjector.execsrss.exe

pid	process
1268	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
1268	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
1784	csrss.exe
1784	csrss.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
1784	csrss.exe
1784	csrss.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exesvchost.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	1268	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Token: SeImpersonatePrivilege	1268	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
Token: SeTcbPrivilege	3720	svchost.exe
Token: SeTcbPrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeSystemEnvironmentPrivilege	1784	csrss.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe
Token: SeBackupPrivilege	3720	svchost.exe
Token: SeRestorePrivilege	3720	svchost.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

svchost.exea9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.execmd.execsrss.exe

description	pid	process	target process
PID 3720 wrote to memory of 3576	3720	svchost.exe	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
PID 3720 wrote to memory of 3576	3720	svchost.exe	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
PID 3720 wrote to memory of 3576	3720	svchost.exe	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
PID 3576 wrote to memory of 2372	3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe	cmd.exe
PID 3576 wrote to memory of 2372	3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe	cmd.exe
PID 2372 wrote to memory of 712	2372	cmd.exe	netsh.exe
PID 2372 wrote to memory of 712	2372	cmd.exe	netsh.exe
PID 3576 wrote to memory of 1784	3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe	csrss.exe
PID 3576 wrote to memory of 1784	3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe	csrss.exe
PID 3576 wrote to memory of 1784	3576	a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe	csrss.exe
PID 3720 wrote to memory of 3044	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 3044	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 2240	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 2240	3720	svchost.exe	schtasks.exe
PID 1784 wrote to memory of 3660	1784	csrss.exe	injector.exe
PID 1784 wrote to memory of 3660	1784	csrss.exe	injector.exe
PID 3720 wrote to memory of 1868	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 1868	3720	svchost.exe	schtasks.exe
PID 1784 wrote to memory of 1380	1784	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 1784 wrote to memory of 1380	1784	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 1784 wrote to memory of 1380	1784	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 3720 wrote to memory of 3180	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 3180	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 1808	3720	svchost.exe	schtasks.exe
PID 3720 wrote to memory of 1808	3720	svchost.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
"C:\Users\Admin\AppData\Local\Temp\a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1268

C:\Users\Admin\AppData\Local\Temp\a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.exe
"C:\Users\Admin\AppData\Local\Temp\a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d.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:3576

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:2372

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:712

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:1784

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:3044

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:2240

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:3660

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:1868

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
4⤵
- Executes dropped EXE
PID:1380

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn "csrss" /f
5⤵
PID:3180

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn "ScheduledUpdate" /f
5⤵
PID:1808

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:3720

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

Impact

Replay Monitor

Loading Replay Monitor...

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\NtQuerySystemInformationHook.dll
Filesize
99KB

MD5
09031a062610d77d685c9934318b4170

SHA1
880f744184e7774f3d14c1bb857e21cc7fe89a6d

SHA256
778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd

SHA512
9a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27

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
4.0MB

MD5
4a9d98a181a1bda34120e0d3fac3777a

SHA1
a6ded4591aaa71dc9658e6b50be1c28bb2a9bcb4

SHA256
a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d

SHA512
b41944113a4865c25fbae63144b2a30e2ae8ece8589bcc57dc86955fc892c5ef61677cf3b5235ddc8f1b2b3fd4dd7d6da9f44414c0ae68e8d0735969371c1a9d

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

MD5
4a9d98a181a1bda34120e0d3fac3777a

SHA1
a6ded4591aaa71dc9658e6b50be1c28bb2a9bcb4

SHA256
a9fbd4352cb3c9038eb0111ec0ac78f2cd9bfda8bb228e0f134c97988411fc7d

SHA512
b41944113a4865c25fbae63144b2a30e2ae8ece8589bcc57dc86955fc892c5ef61677cf3b5235ddc8f1b2b3fd4dd7d6da9f44414c0ae68e8d0735969371c1a9d

Download Submit
memory/712-140-0x0000000000000000-mapping.dmp

Download
memory/1268-133-0x0000000002EA0000-0x0000000003717000-memory.dmp

Filesize
8.5MB

Download
memory/1268-134-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1268-136-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1268-132-0x0000000002AB1000-0x0000000002E9A000-memory.dmp

Filesize
3.9MB

Download
memory/1380-156-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/1380-163-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/1380-154-0x0000000000000000-mapping.dmp

Download
memory/1380-161-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/1784-148-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1784-141-0x0000000000000000-mapping.dmp

Download
memory/1784-153-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1784-146-0x0000000002E00000-0x00000000031E9000-memory.dmp

Filesize
3.9MB

Download
memory/1784-158-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1808-160-0x0000000000000000-mapping.dmp

Download
memory/1868-152-0x0000000000000000-mapping.dmp

Download
memory/2240-147-0x0000000000000000-mapping.dmp

Download
memory/2372-139-0x0000000000000000-mapping.dmp

Download
memory/3044-145-0x0000000000000000-mapping.dmp

Download
memory/3180-159-0x0000000000000000-mapping.dmp

Download
memory/3576-137-0x0000000002A54000-0x0000000002E3D000-memory.dmp

Filesize
3.9MB

Download
memory/3576-138-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3576-144-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3576-135-0x0000000000000000-mapping.dmp

Download
memory/3660-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads