glupteba | 22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b

Analysis

max time kernel
151s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
29/05/2023, 07:40

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General

Target

22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Size

4.2MB
MD5

44b7636d61531c114417405f90268a45
SHA1

8d3c2ff47c4e8ab61da308cfe5bd3867949a9879
SHA256

22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b
SHA512

f2cca4082a013a26ccf344dba35e29015d19c4c76898a0bd898d1fab86dbc78f324ac7895a6a1a047cdd9a4ea5b0905c9df1a2a47a218a1cd950475af47f4695
SSDEEP

98304:wmpX8O9HedpDBHdWTegeTnadviKpY0fMqD+731uK:TFHGpNjTadv4cIwK

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit

Malware Config

Signatures

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

Glupteba payload 17 IoCs

resource	yara_rule
behavioral1/memory/5064-134-0x0000000002FD0000-0x00000000038BB000-memory.dmp	family_glupteba
behavioral1/memory/5064-171-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/5064-206-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/4908-231-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/4908-264-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-318-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-351-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-353-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-355-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-357-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-359-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-361-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-363-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-365-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-367-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-369-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral1/memory/2996-371-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
3832	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2996	csrss.exe
3304	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
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
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 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

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

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
File opened for modification	C:\Windows\rss	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.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

pid	Process
876	schtasks.exe
2580	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.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\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.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\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.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"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1392	powershell.exe
1392	powershell.exe
5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
2700	powershell.exe
2700	powershell.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
3524	powershell.exe
3524	powershell.exe
1604	powershell.exe
1604	powershell.exe
1476	powershell.exe
1476	powershell.exe
4048	powershell.exe
4048	powershell.exe
4532	powershell.exe
4532	powershell.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
2996	csrss.exe
2996	csrss.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
2996	csrss.exe
2996	csrss.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe
3304	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	1392	powershell.exe
Token: SeDebugPrivilege	5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Token: SeImpersonatePrivilege	5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	1476	powershell.exe
Token: SeDebugPrivilege	4048	powershell.exe
Token: SeDebugPrivilege	4532	powershell.exe
Token: SeSystemEnvironmentPrivilege	2996	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 1392	5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	84
PID 5064 wrote to memory of 1392	5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	84
PID 5064 wrote to memory of 1392	5064	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	84
PID 4908 wrote to memory of 2700	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	92
PID 4908 wrote to memory of 2700	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	92
PID 4908 wrote to memory of 2700	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	92
PID 4908 wrote to memory of 2292	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	96
PID 4908 wrote to memory of 2292	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	96
PID 2292 wrote to memory of 3832	2292	cmd.exe	98
PID 2292 wrote to memory of 3832	2292	cmd.exe	98
PID 4908 wrote to memory of 3524	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	99
PID 4908 wrote to memory of 3524	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	99
PID 4908 wrote to memory of 3524	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	99
PID 4908 wrote to memory of 1604	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	101
PID 4908 wrote to memory of 1604	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	101
PID 4908 wrote to memory of 1604	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	101
PID 4908 wrote to memory of 2996	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	103
PID 4908 wrote to memory of 2996	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	103
PID 4908 wrote to memory of 2996	4908	22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe	103
PID 2996 wrote to memory of 1476	2996	csrss.exe	105
PID 2996 wrote to memory of 1476	2996	csrss.exe	105
PID 2996 wrote to memory of 1476	2996	csrss.exe	105
PID 2996 wrote to memory of 4048	2996	csrss.exe	110
PID 2996 wrote to memory of 4048	2996	csrss.exe	110
PID 2996 wrote to memory of 4048	2996	csrss.exe	110
PID 2996 wrote to memory of 4532	2996	csrss.exe	113
PID 2996 wrote to memory of 4532	2996	csrss.exe	113
PID 2996 wrote to memory of 4532	2996	csrss.exe	113
PID 2996 wrote to memory of 3304	2996	csrss.exe	115
PID 2996 wrote to memory of 3304	2996	csrss.exe	115

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\22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
"C:\Users\Admin\AppData\Local\Temp\22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1392
- C:\Users\Admin\AppData\Local\Temp\22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.exe
  "C:\Users\Admin\AppData\Local\Temp\22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b.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:4908
- - 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:2700
- - 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:2292
  - - 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:3832
- - 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:3524
- - 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:1604
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2996
  - - 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:1476
  - - 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:876
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4592
  - - 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:4048
  - - 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:4532
  - - 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:3304
  - - 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:2580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ieoqcozm.zj4.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:\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
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
19KB

MD5
aeb868425402f8e710bf3dba4414772f

SHA1
a8a75c5eb6c52d3f03860985caee525758e6e1ac

SHA256
fafc0021ecdceab3130dad84757c5f0d1548f708eb16c742a697484dbf078256

SHA512
773c64ef0dbb9317b251cfc81f6b109c879e33cedd16572ccad951783220d2951e168291bf4d4509bab68f2f4f16384f079a576fe4da8af9c157dcdb57f57e45

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

Filesize
19KB

MD5
f759f49f95d6fa14f8d447fbf3c63630

SHA1
979c104048e1f493db627782860f772076db898f

SHA256
b828da52bbbd14c03bdda34256bb3de798f65c21d8d631e88fdfb97bc01d9d71

SHA512
c1be0a8a6e23c5a69133d5e0a5f091bb9c6d1268a3494f719b2ba5c6d902cddadcd174042025121f78c26ec92798eb647fe9de3f0a5864c04b955315c0db74db

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

Filesize
19KB

MD5
4de76c60a4698554d69320eba49d0c42

SHA1
c3b685fa2233733fcf799ae887115fa02aa69e72

SHA256
6a5fedb02999e0715cf8d976a3dd19d1f7bc1e9fdaba2288bb0b9232e291eee5

SHA512
bb764f3f09338d891575f993dd4224031f03e8eb5448bf8f533de058fdeaa5ac45b1a0a28f50ce6206e9ee5c4265d7b62bbb37e0c839244b714601c4e5d52d27

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

Filesize
19KB

MD5
694c25bab584b37b014e497b0a5ecc15

SHA1
14ce50d4ac56e8351b2d4160534c555fb28b0fb8

SHA256
03ca897ce774889eef4105d8792043df7b352c13d327deabf2a6170fc50624b3

SHA512
18be1c1d802a286e52af30723cce498020aa45665ce8c51402779ece0d6672a51d540da1a85949b9dd21f6709fd813be50ed82c7c932cbaec40fda91c3ad2c8c

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

Filesize
19KB

MD5
9b6460c803cb3b0584c78c913c70ac37

SHA1
a9976ce32267ee1b51b4dd0d6d0e3c6157a71f7c

SHA256
81761e95aa64d9b583e82b66076fb4e312279ffa5f8eccb6ff5b88444e67d52c

SHA512
a921d58d9c15e64e48f34de4c9ec6f39e6126f36319fc920eae657483eff52b50730ab09ebed92cf3264f222a18e47925fc25efed5f23e44f8de63762d9295fb

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.2MB

MD5
44b7636d61531c114417405f90268a45

SHA1
8d3c2ff47c4e8ab61da308cfe5bd3867949a9879

SHA256
22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b

SHA512
f2cca4082a013a26ccf344dba35e29015d19c4c76898a0bd898d1fab86dbc78f324ac7895a6a1a047cdd9a4ea5b0905c9df1a2a47a218a1cd950475af47f4695

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.2MB

MD5
44b7636d61531c114417405f90268a45

SHA1
8d3c2ff47c4e8ab61da308cfe5bd3867949a9879

SHA256
22212563c82d627560b8a141299031992fde210f22c6be2471d3497bf8cff13b

SHA512
f2cca4082a013a26ccf344dba35e29015d19c4c76898a0bd898d1fab86dbc78f324ac7895a6a1a047cdd9a4ea5b0905c9df1a2a47a218a1cd950475af47f4695

Download Submit
memory/1392-151-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

Filesize
120KB

Download
memory/1392-175-0x00000000072C0000-0x00000000072DA000-memory.dmp

Filesize
104KB

Download
memory/1392-155-0x0000000006E80000-0x0000000006E9A000-memory.dmp

Filesize
104KB

Download
memory/1392-156-0x00000000044D0000-0x00000000044E0000-memory.dmp

Filesize
64KB

Download
memory/1392-157-0x0000000007040000-0x0000000007072000-memory.dmp

Filesize
200KB

Download
memory/1392-158-0x00000000702F0000-0x000000007033C000-memory.dmp

Filesize
304KB

Download
memory/1392-159-0x0000000070470000-0x00000000707C4000-memory.dmp

Filesize
3.3MB

Download
memory/1392-169-0x0000000007020000-0x000000000703E000-memory.dmp

Filesize
120KB

Download
memory/1392-170-0x0000000007160000-0x000000000716A000-memory.dmp

Filesize
40KB

Download
memory/1392-153-0x0000000006DE0000-0x0000000006E56000-memory.dmp

Filesize
472KB

Download
memory/1392-172-0x000000007F450000-0x000000007F460000-memory.dmp

Filesize
64KB

Download
memory/1392-173-0x0000000007220000-0x00000000072B6000-memory.dmp

Filesize
600KB

Download
memory/1392-174-0x00000000071C0000-0x00000000071CE000-memory.dmp

Filesize
56KB

Download
memory/1392-154-0x00000000074E0000-0x0000000007B5A000-memory.dmp

Filesize
6.5MB

Download
memory/1392-176-0x0000000007200000-0x0000000007208000-memory.dmp

Filesize
32KB

Download
memory/1392-152-0x0000000006C30000-0x0000000006C74000-memory.dmp

Filesize
272KB

Download
memory/1392-143-0x00000000054A0000-0x0000000005506000-memory.dmp

Filesize
408KB

Download
memory/1392-140-0x00000000053C0000-0x0000000005426000-memory.dmp

Filesize
408KB

Download
memory/1392-135-0x0000000004520000-0x0000000004556000-memory.dmp

Filesize
216KB

Download
memory/1392-136-0x0000000004B90000-0x00000000051B8000-memory.dmp

Filesize
6.2MB

Download
memory/1392-137-0x00000000044D0000-0x00000000044E0000-memory.dmp

Filesize
64KB

Download
memory/1392-138-0x00000000044D0000-0x00000000044E0000-memory.dmp

Filesize
64KB

Download
memory/1392-139-0x0000000005220000-0x0000000005242000-memory.dmp

Filesize
136KB

Download
memory/1476-279-0x0000000002600000-0x0000000002610000-memory.dmp

Filesize
64KB

Download
memory/1476-281-0x00000000702F0000-0x000000007033C000-memory.dmp

Filesize
304KB

Download
memory/1476-268-0x0000000002600000-0x0000000002610000-memory.dmp

Filesize
64KB

Download
memory/1476-280-0x000000007FA00000-0x000000007FA10000-memory.dmp

Filesize
64KB

Download
memory/1476-282-0x0000000070A70000-0x0000000070DC4000-memory.dmp

Filesize
3.3MB

Download
memory/1604-245-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/1604-246-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/1604-248-0x0000000070A70000-0x0000000070DC4000-memory.dmp

Filesize
3.3MB

Download
memory/1604-247-0x00000000702F0000-0x000000007033C000-memory.dmp

Filesize
304KB

Download
memory/1604-258-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/1604-259-0x000000007FB80000-0x000000007FB90000-memory.dmp

Filesize
64KB

Download
memory/2700-190-0x0000000002B40000-0x0000000002B50000-memory.dmp

Filesize
64KB

Download
memory/2700-189-0x0000000002B40000-0x0000000002B50000-memory.dmp

Filesize
64KB

Download
memory/2700-191-0x0000000002B40000-0x0000000002B50000-memory.dmp

Filesize
64KB

Download
memory/2700-192-0x00000000702F0000-0x000000007033C000-memory.dmp

Filesize
304KB

Download
memory/2700-193-0x0000000070A70000-0x0000000070DC4000-memory.dmp

Filesize
3.3MB

Download
memory/2700-203-0x000000007F6A0000-0x000000007F6B0000-memory.dmp

Filesize
64KB

Download
memory/2996-365-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-355-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-351-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-353-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-367-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-318-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-369-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-371-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-363-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-361-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-359-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2996-357-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/3524-232-0x0000000005520000-0x0000000005530000-memory.dmp

Filesize
64KB

Download
memory/3524-219-0x0000000005520000-0x0000000005530000-memory.dmp

Filesize
64KB

Download
memory/3524-221-0x0000000070A70000-0x0000000070DC4000-memory.dmp

Filesize
3.3MB

Download
memory/3524-233-0x000000007F830000-0x000000007F840000-memory.dmp

Filesize
64KB

Download
memory/3524-220-0x00000000702F0000-0x000000007033C000-memory.dmp

Filesize
304KB

Download
memory/3524-218-0x0000000005520000-0x0000000005530000-memory.dmp

Filesize
64KB

Download
memory/4048-306-0x0000000070390000-0x00000000706E4000-memory.dmp

Filesize
3.3MB

Download
memory/4048-304-0x0000000003170000-0x0000000003180000-memory.dmp

Filesize
64KB

Download
memory/4048-303-0x0000000003170000-0x0000000003180000-memory.dmp

Filesize
64KB

Download
memory/4048-305-0x0000000070210000-0x000000007025C000-memory.dmp

Filesize
304KB

Download
memory/4048-316-0x0000000003170000-0x0000000003180000-memory.dmp

Filesize
64KB

Download
memory/4048-317-0x000000007F5B0000-0x000000007F5C0000-memory.dmp

Filesize
64KB

Download
memory/4532-332-0x0000000004550000-0x0000000004560000-memory.dmp

Filesize
64KB

Download
memory/4532-331-0x0000000004550000-0x0000000004560000-memory.dmp

Filesize
64KB

Download
memory/4532-333-0x0000000070210000-0x000000007025C000-memory.dmp

Filesize
304KB

Download
memory/4532-334-0x00000000709A0000-0x0000000070CF4000-memory.dmp

Filesize
3.3MB

Download
memory/4532-344-0x000000007FCF0000-0x000000007FD00000-memory.dmp

Filesize
64KB

Download
memory/4908-264-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/4908-231-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/5064-171-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/5064-206-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/5064-134-0x0000000002FD0000-0x00000000038BB000-memory.dmp

Filesize
8.9MB

Download