glupteba | df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
27-04-2024 17:22

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General

Target

df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Size

4.1MB
MD5

5b999c9b35c412a346882dbdf84d928f
SHA1

0ae7ac625fc09e5f06f5a6fb193a0983c331eba7
SHA256

df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5
SHA512

740cb5febd791f030041c1b11ec2cd9148832cfa214af0502e4dc76f153f4a12f2e6fdf5db5e077525ddbc56ee0118313772aead41c9685127d8ec03e064b066
SSDEEP

98304:9B+pokA3uLr67t8MVyOHX+J6fh0VTXiCNKfogoP0GUbubAel:9Bc4uLrIK0u8fYNDf0GUb+Ael

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 15 IoCs

resource	yara_rule
behavioral2/memory/1708-2-0x00000000050B0000-0x000000000599B000-memory.dmp	family_glupteba
behavioral2/memory/1708-3-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/1708-50-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/1708-51-0x00000000050B0000-0x000000000599B000-memory.dmp	family_glupteba
behavioral2/memory/1552-79-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/1552-124-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-151-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-204-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-205-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-206-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-207-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-208-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-209-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-210-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4632-211-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
220	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
4632	csrss.exe
936	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878097196-921257239-309638238-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878097196-921257239-309638238-1000\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 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
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	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	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
File created	C:\Windows\rss\csrss.exe	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.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

pid	Process
1228	schtasks.exe
4576	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	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\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\SystemCertificates\CA\CRLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
564	powershell.exe
564	powershell.exe
1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1468	powershell.exe
1468	powershell.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
1420	powershell.exe
1420	powershell.exe
680	powershell.exe
680	powershell.exe
4856	powershell.exe
4856	powershell.exe
3120	powershell.exe
3120	powershell.exe
2704	powershell.exe
2704	powershell.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
4632	csrss.exe
4632	csrss.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
4632	csrss.exe
4632	csrss.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	564	powershell.exe
Token: SeDebugPrivilege	1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Token: SeImpersonatePrivilege	1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
Token: SeDebugPrivilege	1468	powershell.exe
Token: SeDebugPrivilege	1420	powershell.exe
Token: SeDebugPrivilege	680	powershell.exe
Token: SeDebugPrivilege	4856	powershell.exe
Token: SeDebugPrivilege	3120	powershell.exe
Token: SeDebugPrivilege	2704	powershell.exe
Token: SeSystemEnvironmentPrivilege	4632	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 564	1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	81
PID 1708 wrote to memory of 564	1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	81
PID 1708 wrote to memory of 564	1708	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	81
PID 1552 wrote to memory of 1468	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	86
PID 1552 wrote to memory of 1468	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	86
PID 1552 wrote to memory of 1468	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	86
PID 1552 wrote to memory of 1472	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	88
PID 1552 wrote to memory of 1472	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	88
PID 1472 wrote to memory of 220	1472	cmd.exe	90
PID 1472 wrote to memory of 220	1472	cmd.exe	90
PID 1552 wrote to memory of 1420	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	91
PID 1552 wrote to memory of 1420	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	91
PID 1552 wrote to memory of 1420	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	91
PID 1552 wrote to memory of 680	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	93
PID 1552 wrote to memory of 680	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	93
PID 1552 wrote to memory of 680	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	93
PID 1552 wrote to memory of 4632	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	95
PID 1552 wrote to memory of 4632	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	95
PID 1552 wrote to memory of 4632	1552	df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe	95
PID 4632 wrote to memory of 4856	4632	csrss.exe	96
PID 4632 wrote to memory of 4856	4632	csrss.exe	96
PID 4632 wrote to memory of 4856	4632	csrss.exe	96
PID 4632 wrote to memory of 3120	4632	csrss.exe	102
PID 4632 wrote to memory of 3120	4632	csrss.exe	102
PID 4632 wrote to memory of 3120	4632	csrss.exe	102
PID 4632 wrote to memory of 2704	4632	csrss.exe	104
PID 4632 wrote to memory of 2704	4632	csrss.exe	104
PID 4632 wrote to memory of 2704	4632	csrss.exe	104
PID 4632 wrote to memory of 936	4632	csrss.exe	106
PID 4632 wrote to memory of 936	4632	csrss.exe	106

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\df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
"C:\Users\Admin\AppData\Local\Temp\df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:564
- C:\Users\Admin\AppData\Local\Temp\df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.exe
  "C:\Users\Admin\AppData\Local\Temp\df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5.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:1552
- - 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:1468
- - 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:1472
  - - 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:220
- - 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:1420
- - 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:680
- - 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:4632
  - - 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:4856
  - - 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:1228
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1512
  - - 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:3120
  - - 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:2704
  - - 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:936
  - - 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:4576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3mhldbft.r5a.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
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

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

Filesize
19KB

MD5
1c91461986f9c41f1e5bf8d1c709b540

SHA1
bc445c12cff8ca13a901b0636a8bb844f54ce840

SHA256
3f3a8ddac2ab1ff72b15f589c04ced3033046b8708f40ec087641451f4251dd4

SHA512
a44781f8fcd88694f8bcc6497b1d7f1e258bcd23890812ea2447a13f833591ad3ee3f3fea1f5b90e3cdcc121a0da14a368e151bec6e230ed5568a469afcfcec6

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

Filesize
19KB

MD5
7879ecc8c9fb1f0828fbf1e636bbd810

SHA1
446444d0305f1673842fc28d3f529dd34adfd351

SHA256
784bf7202a661e5472d54e73658aa2a260987761216dd303a011b8a21f29937b

SHA512
49dfd6da2212684c2ede6c7312c32b9e5cf20b52d98b354a55e7ad066bd7ad3d92d988713cdf1d8e16ba1e4425f59ba31631051b6eac4236b0a2b3f42d3a0f68

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

Filesize
19KB

MD5
e2e9d7882efa44b4b36ef334f7b9f423

SHA1
5d12f87014421b0bd1af8ff0b64e1595fbaed5f7

SHA256
c6c2145dcb1ae0831ee6e11c89dd3913e42158a8f2aff0a91dd37899b4c86c9c

SHA512
17a95df12140203d4c56eda5d18d2880edf11301072e57aa468dde8b077d2106c21e5ac7445dfa65dc8d52e08aa3d26d853f398b44eac9d6bcb27652b6e6f5bd

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

Filesize
19KB

MD5
7e21c63d96bd9460772d52b35fdac64b

SHA1
7fac0aec836223ac2305850593adf487e6547da1

SHA256
58cc7e9a391b67afe53887890c33a5da88ec5ca427bfcfb51ed8dc70605ed0f8

SHA512
9fb49f5f0cb19dca498c2cc283c4507c1dc4946d814c9d52bcd5cb5d37c577e33b4d8816de967886d7470cad5cc46b8f1fb2211cfebb5ac7caa586d811f1d2c9

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

Filesize
19KB

MD5
60e7b3c6ca8121c971b7dde9bc159016

SHA1
e75f5e55249a9f3ddc4263645666025164aa298e

SHA256
2ba9b5c89dadcf15ddca3477a92404ea1b3ad453f109f0886aea07b3fb8ce543

SHA512
3490779b299ef14ac29a43b592c88e4d8899df253d04647bff1be7af7371133f7b80bc464b7db245b1c8fc777034888bfe08d95bb17250f5e3410be744716e74

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

Filesize
4.1MB

MD5
5b999c9b35c412a346882dbdf84d928f

SHA1
0ae7ac625fc09e5f06f5a6fb193a0983c331eba7

SHA256
df7a8bc783c2b9c463d518711fce26a794528551814d3d59b0832be671ffc7b5

SHA512
740cb5febd791f030041c1b11ec2cd9148832cfa214af0502e4dc76f153f4a12f2e6fdf5db5e077525ddbc56ee0118313772aead41c9685127d8ec03e064b066

Download Submit
memory/564-36-0x00000000078C0000-0x0000000007964000-memory.dmp

Filesize
656KB

Download
memory/564-40-0x0000000007AF0000-0x0000000007B86000-memory.dmp

Filesize
600KB

Download
memory/564-10-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/564-17-0x0000000005FB0000-0x0000000006307000-memory.dmp

Filesize
3.3MB

Download
memory/564-21-0x0000000006430000-0x000000000644E000-memory.dmp

Filesize
120KB

Download
memory/564-22-0x0000000006460000-0x00000000064AC000-memory.dmp

Filesize
304KB

Download
memory/564-23-0x00000000069E0000-0x0000000006A26000-memory.dmp

Filesize
280KB

Download
memory/564-26-0x0000000070590000-0x00000000708E7000-memory.dmp

Filesize
3.3MB

Download
memory/564-25-0x00000000703A0000-0x00000000703EC000-memory.dmp

Filesize
304KB

Download
memory/564-35-0x00000000078A0000-0x00000000078BE000-memory.dmp

Filesize
120KB

Download
memory/564-24-0x0000000007860000-0x0000000007894000-memory.dmp

Filesize
208KB

Download
memory/564-4-0x0000000002F70000-0x0000000002FA6000-memory.dmp

Filesize
216KB

Download
memory/564-38-0x00000000079F0000-0x0000000007A0A000-memory.dmp

Filesize
104KB

Download
memory/564-37-0x0000000008030000-0x00000000086AA000-memory.dmp

Filesize
6.5MB

Download
memory/564-39-0x0000000007A30000-0x0000000007A3A000-memory.dmp

Filesize
40KB

Download
memory/564-11-0x0000000005F40000-0x0000000005FA6000-memory.dmp

Filesize
408KB

Download
memory/564-41-0x0000000007A60000-0x0000000007A71000-memory.dmp

Filesize
68KB

Download
memory/564-42-0x0000000007AA0000-0x0000000007AAE000-memory.dmp

Filesize
56KB

Download
memory/564-43-0x0000000007AB0000-0x0000000007AC5000-memory.dmp

Filesize
84KB

Download
memory/564-44-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

Filesize
104KB

Download
memory/564-45-0x0000000007B90000-0x0000000007B98000-memory.dmp

Filesize
32KB

Download
memory/564-48-0x0000000074130000-0x00000000748E1000-memory.dmp

Filesize
7.7MB

Download
memory/564-9-0x00000000055A0000-0x00000000055C2000-memory.dmp

Filesize
136KB

Download
memory/564-8-0x0000000002FC0000-0x0000000002FD0000-memory.dmp

Filesize
64KB

Download
memory/564-6-0x0000000074130000-0x00000000748E1000-memory.dmp

Filesize
7.7MB

Download
memory/564-5-0x0000000005760000-0x0000000005D8A000-memory.dmp

Filesize
6.2MB

Download
memory/564-7-0x0000000002FC0000-0x0000000002FD0000-memory.dmp

Filesize
64KB

Download
memory/680-110-0x00000000704B0000-0x00000000704FC000-memory.dmp

Filesize
304KB

Download
memory/680-111-0x0000000070700000-0x0000000070A57000-memory.dmp

Filesize
3.3MB

Download
memory/1420-91-0x00000000706C0000-0x0000000070A17000-memory.dmp

Filesize
3.3MB

Download
memory/1420-90-0x00000000704B0000-0x00000000704FC000-memory.dmp

Filesize
304KB

Download
memory/1420-88-0x0000000005990000-0x0000000005CE7000-memory.dmp

Filesize
3.3MB

Download
memory/1468-75-0x00000000072D0000-0x00000000072E5000-memory.dmp

Filesize
84KB

Download
memory/1468-74-0x0000000007280000-0x0000000007291000-memory.dmp

Filesize
68KB

Download
memory/1468-73-0x0000000006F30000-0x0000000006FD4000-memory.dmp

Filesize
656KB

Download
memory/1468-64-0x0000000070700000-0x0000000070A57000-memory.dmp

Filesize
3.3MB

Download
memory/1468-63-0x00000000704B0000-0x00000000704FC000-memory.dmp

Filesize
304KB

Download
memory/1468-62-0x0000000005D80000-0x0000000005DCC000-memory.dmp

Filesize
304KB

Download
memory/1468-53-0x0000000005840000-0x0000000005B97000-memory.dmp

Filesize
3.3MB

Download
memory/1552-124-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/1552-79-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/1708-50-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/1708-3-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/1708-2-0x00000000050B0000-0x000000000599B000-memory.dmp

Filesize
8.9MB

Download
memory/1708-1-0x0000000003510000-0x0000000003909000-memory.dmp

Filesize
4.0MB

Download
memory/1708-51-0x00000000050B0000-0x000000000599B000-memory.dmp

Filesize
8.9MB

Download
memory/2704-188-0x0000000070330000-0x000000007037C000-memory.dmp

Filesize
304KB

Download
memory/2704-187-0x00000000055B0000-0x0000000005907000-memory.dmp

Filesize
3.3MB

Download
memory/2704-189-0x00000000704B0000-0x0000000070807000-memory.dmp

Filesize
3.3MB

Download
memory/3120-176-0x0000000005D00000-0x0000000005D15000-memory.dmp

Filesize
84KB

Download
memory/3120-175-0x0000000005CC0000-0x0000000005CD1000-memory.dmp

Filesize
68KB

Download
memory/3120-158-0x0000000005960000-0x0000000005CB7000-memory.dmp

Filesize
3.3MB

Download
memory/3120-163-0x0000000005F50000-0x0000000005F9C000-memory.dmp

Filesize
304KB

Download
memory/3120-164-0x0000000070330000-0x000000007037C000-memory.dmp

Filesize
304KB

Download
memory/3120-165-0x0000000070580000-0x00000000708D7000-memory.dmp

Filesize
3.3MB

Download
memory/3120-174-0x0000000007120000-0x00000000071C4000-memory.dmp

Filesize
656KB

Download
memory/4632-151-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-207-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-211-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-210-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-209-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-208-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-206-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-204-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4632-205-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4856-136-0x0000000006200000-0x000000000624C000-memory.dmp

Filesize
304KB

Download
memory/4856-149-0x0000000005690000-0x00000000056A5000-memory.dmp

Filesize
84KB

Download
memory/4856-138-0x0000000070590000-0x00000000708E7000-memory.dmp

Filesize
3.3MB

Download
memory/4856-137-0x0000000070410000-0x000000007045C000-memory.dmp

Filesize
304KB

Download
memory/4856-147-0x0000000007450000-0x00000000074F4000-memory.dmp

Filesize
656KB

Download
memory/4856-148-0x0000000005540000-0x0000000005551000-memory.dmp

Filesize
68KB

Download