glupteba | c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc

Analysis

max time kernel
140s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-04-2024 08:32

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General

Target

c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Size

4.1MB
MD5

e0db9f95bae4d1209d6389fbee946f3a
SHA1

752abe4504a0a5e96b12e1ae4981d2eeb2032b92
SHA256

c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc
SHA512

a22973b36aa5b991c36a7ff8a4fe8f1c64de5d4e6ccec87aa785ba6fd1c03154530d53fdc94e450ec6845eb1171b44ef89a380fd630c0e2520c11e5fa5025a62
SSDEEP

98304:RBrcvoQ3bpeAYFyI5s2iXAaDVcYvvxcUB482tlsgYA74z:RBQ8JjsJRJcupcUK8wlX7k

Score

10^/10

glupteba discovery dropper evasion loader persistence

Malware Config

Signatures

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

Glupteba payload 13 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2148-2-0x00000000050F0000-0x00000000059DB000-memory.dmp	family_glupteba
behavioral1/memory/2148-3-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/2148-4-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/2148-24-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/2148-33-0x00000000050F0000-0x00000000059DB000-memory.dmp	family_glupteba
behavioral1/memory/2148-50-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/2148-58-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/1968-84-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/1968-133-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/1968-140-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/1956-171-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/1956-222-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba
behavioral1/memory/1956-230-0x0000000000400000-0x0000000002EDF000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

5016 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid process

1956 csrss.exe

pid	process
5016	netsh.exe

pid	process
1956	csrss.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.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 System32 directory 6 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery
T1082

Processes:

c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe

Drops file in Windows directory 2 IoCs

Processes:

c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe

description	ioc	process
File opened for modification	C:\Windows\rss	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
File created	C:\Windows\rss\csrss.exe	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.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/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1064 schtasks.exe
1600 schtasks.exe

pid	process
1064	schtasks.exe
1600	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

powershell.exec522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

powershell.exec522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exepowershell.exec522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	process
1516	powershell.exe
1516	powershell.exe
2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
2716	powershell.exe
2716	powershell.exe
2716	powershell.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
3972	powershell.exe
3972	powershell.exe
3972	powershell.exe
4748	powershell.exe
4748	powershell.exe
4748	powershell.exe
4608	powershell.exe
4608	powershell.exe
4404	powershell.exe
4404	powershell.exe
1136	powershell.exe
1136	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

powershell.exec522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1516	powershell.exe
Token: SeDebugPrivilege	2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Token: SeImpersonatePrivilege	2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	3972	powershell.exe
Token: SeDebugPrivilege	4748	powershell.exe
Token: SeDebugPrivilege	4608	powershell.exe
Token: SeDebugPrivilege	4404	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exec522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.execmd.execsrss.exe

description	pid	process	target process
PID 2148 wrote to memory of 1516	2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 2148 wrote to memory of 1516	2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 2148 wrote to memory of 1516	2148	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 2716	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 2716	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 2716	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 1964	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	cmd.exe
PID 1968 wrote to memory of 1964	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	cmd.exe
PID 1964 wrote to memory of 5016	1964	cmd.exe	netsh.exe
PID 1964 wrote to memory of 5016	1964	cmd.exe	netsh.exe
PID 1968 wrote to memory of 3972	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 3972	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 3972	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 4748	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 4748	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 4748	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	powershell.exe
PID 1968 wrote to memory of 1956	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	csrss.exe
PID 1968 wrote to memory of 1956	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	csrss.exe
PID 1968 wrote to memory of 1956	1968	c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe	csrss.exe
PID 1956 wrote to memory of 4608	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 4608	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 4608	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 4404	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 4404	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 4404	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 1136	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 1136	1956	csrss.exe	powershell.exe
PID 1956 wrote to memory of 1136	1956	csrss.exe	powershell.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
"C:\Users\Admin\AppData\Local\Temp\c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1516

C:\Users\Admin\AppData\Local\Temp\c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe
"C:\Users\Admin\AppData\Local\Temp\c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc.exe"
2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2716

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:1964

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:5016

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3972

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4748

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4608

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:1064

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1156

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4404

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
4⤵
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1136

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⤵
PID:2444

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:1600

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2268 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
1⤵
PID:2228

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_msljhhfb.zd3.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
565f9b59dfadb98a4e4f7232a3325752

SHA1
06f7b09b966c73fa227fb2b41f0780d3b9f7dc9c

SHA256
febc38ae3eb14a043df5e2b9a3f899b76fbc90ac6854df57db1d6c3af095a41e

SHA512
bac9a8c5c9ea90d57ba89fe5285168abea235534fc609f11258a9745d8bd68c7b0552492590eb95627d5a0507fa5f5d5e1357b41df6183925a2dc0f8c54d2b14

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
ed205ae7417972c23c37f175b55275a3

SHA1
682941683921abaa83c5f18a22881033377081e8

SHA256
7ad2189cab22b6268a58dfe66da2591b3ed5da1e32419ee4606f8ae8f53a0d3b

SHA512
d0a4480202c202c27af340b42bd40dc0d2a767e33c856ce6d7b21830c7cb304ba9b4eca49068a5e94bdfb8bd6e65cad4ff1d66e92e345dd310d95aa08a7d48de

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
378ce3a7be3375cf0deac03f097cbb05

SHA1
c6b1ac44f862fc20f3cf9eaa0f0e8ded0931272a

SHA256
39269849a9dda55c418e755e93a78a005d0558021f4466789543671be10f6346

SHA512
1dafa27b199affa398b2fd260e2db58e6e482bdffd5c7ef5be00db4006b98ab3d9035ad8d113e9a421c41b62811b95ac4152b19899c7f4a62eaa10e76fec5454

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
96ff6ff15de0b0716f7caece189a4104

SHA1
c83a53e61af5a97091686ffa1cb2f1831e872fe3

SHA256
a5c22f50e0c22472dbd20dad9e7263be9c6aa923395144465b954225cf35e41e

SHA512
527f4f0c853a664570fbbc566fc83df4e46994d251e4c384c75e230881db85c8aae0a83730dea4fca40d53be609b2c706a64e79b136d040f013d9bfd9815e157

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
3134e061c0d43d8b71a07ce49bd9bac0

SHA1
7f3aad1fc29d8d280bacee7787a13064e39d364f

SHA256
204f9d3ffa176992f05d3f492302317c16934b4049c2865c08d69a72cc6570d9

SHA512
1ea517169ab3b8f8e9c1d12d4525ab888f9d616eca2965e3db414e8bf525a7441f0e7ed321b62ebf1498d98dfc5313dd2ca6252ae08cbe52e26229b6f35ac43f

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

MD5
e0db9f95bae4d1209d6389fbee946f3a

SHA1
752abe4504a0a5e96b12e1ae4981d2eeb2032b92

SHA256
c522ec7d500b7eff8ae4a1b046b951e40a4efa2c994049b09861560f306aeabc

SHA512
a22973b36aa5b991c36a7ff8a4fe8f1c64de5d4e6ccec87aa785ba6fd1c03154530d53fdc94e450ec6845eb1171b44ef89a380fd630c0e2520c11e5fa5025a62

Download Submit
memory/1136-209-0x00000000053C0000-0x0000000005714000-memory.dmp

Filesize
3.3MB

Download
memory/1136-212-0x0000000070B20000-0x0000000070E74000-memory.dmp

Filesize
3.3MB

Download
memory/1136-211-0x0000000070360000-0x00000000703AC000-memory.dmp

Filesize
304KB

Download
memory/1516-46-0x0000000007670000-0x0000000007713000-memory.dmp

Filesize
652KB

Download
memory/1516-51-0x00000000077D0000-0x00000000077DE000-memory.dmp

Filesize
56KB

Download
memory/1516-5-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/1516-6-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

Filesize
64KB

Download
memory/1516-25-0x00000000064C0000-0x0000000006504000-memory.dmp

Filesize
272KB

Download
memory/1516-26-0x0000000002AD0000-0x0000000002AE0000-memory.dmp

Filesize
64KB

Download
memory/1516-27-0x00000000073E0000-0x0000000007456000-memory.dmp

Filesize
472KB

Download
memory/1516-28-0x0000000007AE0000-0x000000000815A000-memory.dmp

Filesize
6.5MB

Download
memory/1516-29-0x0000000007480000-0x000000000749A000-memory.dmp

Filesize
104KB

Download
memory/1516-7-0x0000000002A90000-0x0000000002AC6000-memory.dmp

Filesize
216KB

Download
memory/1516-8-0x0000000005220000-0x0000000005848000-memory.dmp

Filesize
6.2MB

Download
memory/1516-31-0x0000000007630000-0x0000000007662000-memory.dmp

Filesize
200KB

Download
memory/1516-35-0x0000000070560000-0x00000000708B4000-memory.dmp

Filesize
3.3MB

Download
memory/1516-34-0x000000007FA40000-0x000000007FA50000-memory.dmp

Filesize
64KB

Download
memory/1516-32-0x00000000703E0000-0x000000007042C000-memory.dmp

Filesize
304KB

Download
memory/1516-45-0x00000000075F0000-0x000000000760E000-memory.dmp

Filesize
120KB

Download
memory/1516-9-0x00000000051D0000-0x00000000051F2000-memory.dmp

Filesize
136KB

Download
memory/1516-47-0x0000000007740000-0x000000000774A000-memory.dmp

Filesize
40KB

Download
memory/1516-48-0x0000000007810000-0x00000000078A6000-memory.dmp

Filesize
600KB

Download
memory/1516-49-0x0000000007790000-0x00000000077A1000-memory.dmp

Filesize
68KB

Download
memory/1516-10-0x0000000005980000-0x00000000059E6000-memory.dmp

Filesize
408KB

Download
memory/1516-11-0x00000000059F0000-0x0000000005A56000-memory.dmp

Filesize
408KB

Download
memory/1516-52-0x00000000077E0000-0x00000000077F4000-memory.dmp

Filesize
80KB

Download
memory/1516-53-0x00000000078D0000-0x00000000078EA000-memory.dmp

Filesize
104KB

Download
memory/1516-54-0x00000000078B0000-0x00000000078B8000-memory.dmp

Filesize
32KB

Download
memory/1516-57-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/1516-21-0x0000000005CA0000-0x0000000005FF4000-memory.dmp

Filesize
3.3MB

Download
memory/1516-22-0x00000000060A0000-0x00000000060BE000-memory.dmp

Filesize
120KB

Download
memory/1516-23-0x0000000006140000-0x000000000618C000-memory.dmp

Filesize
304KB

Download
memory/1956-171-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/1956-222-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/1956-230-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/1968-133-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/1968-140-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/1968-84-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/2148-50-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/2148-2-0x00000000050F0000-0x00000000059DB000-memory.dmp

Filesize
8.9MB

Download
memory/2148-33-0x00000000050F0000-0x00000000059DB000-memory.dmp

Filesize
8.9MB

Download
memory/2148-30-0x0000000003540000-0x0000000003943000-memory.dmp

Filesize
4.0MB

Download
memory/2148-1-0x0000000003540000-0x0000000003943000-memory.dmp

Filesize
4.0MB

Download
memory/2148-24-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/2148-4-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/2148-3-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/2148-58-0x0000000000400000-0x0000000002EDF000-memory.dmp

Filesize
42.9MB

Download
memory/2716-70-0x0000000006440000-0x000000000648C000-memory.dmp

Filesize
304KB

Download
memory/2716-61-0x0000000005DC0000-0x0000000006114000-memory.dmp

Filesize
3.3MB

Download
memory/2716-71-0x00000000704E0000-0x000000007052C000-memory.dmp

Filesize
304KB

Download
memory/2716-72-0x0000000070C80000-0x0000000070FD4000-memory.dmp

Filesize
3.3MB

Download
memory/2716-82-0x00000000075F0000-0x0000000007693000-memory.dmp

Filesize
652KB

Download
memory/2716-83-0x00000000078E0000-0x00000000078F1000-memory.dmp

Filesize
68KB

Download
memory/2716-85-0x0000000007950000-0x0000000007964000-memory.dmp

Filesize
80KB

Download
memory/3972-100-0x0000000070C80000-0x0000000070FD4000-memory.dmp

Filesize
3.3MB

Download
memory/3972-99-0x00000000704E0000-0x000000007052C000-memory.dmp

Filesize
304KB

Download
memory/4404-183-0x0000000005E90000-0x0000000005EDC000-memory.dmp

Filesize
304KB

Download
memory/4404-197-0x0000000005BE0000-0x0000000005BF4000-memory.dmp

Filesize
80KB

Download
memory/4404-181-0x0000000005830000-0x0000000005B84000-memory.dmp

Filesize
3.3MB

Download
memory/4404-196-0x0000000007390000-0x00000000073A1000-memory.dmp

Filesize
68KB

Download
memory/4404-195-0x0000000007130000-0x00000000071D3000-memory.dmp

Filesize
652KB

Download
memory/4404-184-0x0000000070360000-0x00000000703AC000-memory.dmp

Filesize
304KB

Download
memory/4404-185-0x0000000070500000-0x0000000070854000-memory.dmp

Filesize
3.3MB

Download
memory/4608-169-0x00000000067E0000-0x00000000067F4000-memory.dmp

Filesize
80KB

Download
memory/4608-168-0x0000000007E10000-0x0000000007E21000-memory.dmp

Filesize
68KB

Download
memory/4608-167-0x0000000007D10000-0x0000000007DB3000-memory.dmp

Filesize
652KB

Download
memory/4608-157-0x00000000705C0000-0x0000000070914000-memory.dmp

Filesize
3.3MB

Download
memory/4608-155-0x0000000070440000-0x000000007048C000-memory.dmp

Filesize
304KB

Download
memory/4608-154-0x0000000006A50000-0x0000000006A9C000-memory.dmp

Filesize
304KB

Download
memory/4608-152-0x0000000006440000-0x0000000006794000-memory.dmp

Filesize
3.3MB

Download
memory/4748-123-0x0000000070C60000-0x0000000070FB4000-memory.dmp

Filesize
3.3MB

Download
memory/4748-120-0x0000000005740000-0x0000000005A94000-memory.dmp

Filesize
3.3MB

Download
memory/4748-122-0x00000000704E0000-0x000000007052C000-memory.dmp

Filesize
304KB

Download