glupteba | 06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7

Analysis

max time kernel
150s
max time network
134s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
02/05/2024, 19:10

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Size 4.2MB
Sample240502-xvbeeaeb4s
SHA256 06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7
MD5 dc672913d1b0ed5c5571a610ce031766
SHA1 6539bf2407fa2034e152e88792ede2f144e04b78
SHA512 f211c7420e72b44807cb4fd056af2126d14b8c359a02b4808e196fce6b7c1a1fdf8293bc82f9aa517f931814767d0bfe8ed938388070b649e68d8cfbce4401cf
SSDEEP 98304:7mEjzi/3O52sDSn2sBMneAY2gSm6lbP8XYs3iaeok9nLg:iEjzK3O2Es2eA2Alb4Rybx0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 18 IoCs

resource	yara_rule
behavioral2/memory/1736-2-0x0000000005060000-0x000000000594B000-memory.dmp	family_glupteba
behavioral2/memory/1736-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1736-40-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1736-61-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1736-89-0x0000000005060000-0x000000000594B000-memory.dmp	family_glupteba
behavioral2/memory/5084-88-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1736-120-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/5084-125-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-196-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-204-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-214-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-217-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-220-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-223-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-226-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-229-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-232-0x0000000000400000-0x0000000002EE9000-memory.dmp	family_glupteba
behavioral2/memory/1624-235-0x0000000000400000-0x0000000002EE9000-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
5060	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
1624	csrss.exe
3924	injector.exe
2296	windefender.exe
5088	windefender.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x001a00000002ab11-207.dat	upx
behavioral2/memory/2296-208-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2296-212-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/5088-215-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/5088-221-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

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-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\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 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

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
File created	C:\Windows\rss\csrss.exe	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
File created	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1460	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1092	powershell.exe
5048	powershell.exe
1792	powershell.exe
4912	powershell.exe
4860	powershell.exe
1424	powershell.exe
792	powershell.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
2228	schtasks.exe
2352	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\@tzres.dll,-631 = "Tokyo Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	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\@tzres.dll,-1502 = "Turkey Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\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\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.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\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	windefender.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\@tzres.dll,-572 = "China Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	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\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4912	powershell.exe
4912	powershell.exe
1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
4860	powershell.exe
4860	powershell.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
1424	powershell.exe
1424	powershell.exe
792	powershell.exe
792	powershell.exe
1092	powershell.exe
1092	powershell.exe
5048	powershell.exe
5048	powershell.exe
1792	powershell.exe
1792	powershell.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
1624	csrss.exe
1624	csrss.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
1624	csrss.exe
1624	csrss.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
1624	csrss.exe
1624	csrss.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe
3924	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	powershell.exe
Token: SeDebugPrivilege	1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Token: SeImpersonatePrivilege	1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeDebugPrivilege	1424	powershell.exe
Token: SeDebugPrivilege	792	powershell.exe
Token: SeDebugPrivilege	1092	powershell.exe
Token: SeDebugPrivilege	5048	powershell.exe
Token: SeDebugPrivilege	1792	powershell.exe
Token: SeSystemEnvironmentPrivilege	1624	csrss.exe
Token: SeSecurityPrivilege	1460	sc.exe
Token: SeSecurityPrivilege	1460	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 4912	1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	82
PID 1736 wrote to memory of 4912	1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	82
PID 1736 wrote to memory of 4912	1736	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	82
PID 5084 wrote to memory of 4860	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	87
PID 5084 wrote to memory of 4860	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	87
PID 5084 wrote to memory of 4860	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	87
PID 5084 wrote to memory of 2192	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	89
PID 5084 wrote to memory of 2192	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	89
PID 2192 wrote to memory of 5060	2192	cmd.exe	91
PID 2192 wrote to memory of 5060	2192	cmd.exe	91
PID 5084 wrote to memory of 1424	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	92
PID 5084 wrote to memory of 1424	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	92
PID 5084 wrote to memory of 1424	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	92
PID 5084 wrote to memory of 792	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	94
PID 5084 wrote to memory of 792	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	94
PID 5084 wrote to memory of 792	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	94
PID 5084 wrote to memory of 1624	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	96
PID 5084 wrote to memory of 1624	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	96
PID 5084 wrote to memory of 1624	5084	06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe	96
PID 1624 wrote to memory of 1092	1624	csrss.exe	97
PID 1624 wrote to memory of 1092	1624	csrss.exe	97
PID 1624 wrote to memory of 1092	1624	csrss.exe	97
PID 1624 wrote to memory of 5048	1624	csrss.exe	103
PID 1624 wrote to memory of 5048	1624	csrss.exe	103
PID 1624 wrote to memory of 5048	1624	csrss.exe	103
PID 1624 wrote to memory of 1792	1624	csrss.exe	105
PID 1624 wrote to memory of 1792	1624	csrss.exe	105
PID 1624 wrote to memory of 1792	1624	csrss.exe	105
PID 1624 wrote to memory of 3924	1624	csrss.exe	107
PID 1624 wrote to memory of 3924	1624	csrss.exe	107
PID 2296 wrote to memory of 4892	2296	windefender.exe	113
PID 2296 wrote to memory of 4892	2296	windefender.exe	113
PID 2296 wrote to memory of 4892	2296	windefender.exe	113
PID 4892 wrote to memory of 1460	4892	cmd.exe	114
PID 4892 wrote to memory of 1460	4892	cmd.exe	114
PID 4892 wrote to memory of 1460	4892	cmd.exe	114

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\06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
"C:\Users\Admin\AppData\Local\Temp\06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4912
- C:\Users\Admin\AppData\Local\Temp\06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.exe
  "C:\Users\Admin\AppData\Local\Temp\06819011b8c5bd69037e14f33df57538923af6ebc94d92cfc05f83be13a8bef7.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:5084
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4860
- - 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:2192
  - - 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:5060
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1424
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:792
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1624
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1092
  - - 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:2228
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1824
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5048
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1792
  - - 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:3924
  - - 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:2352
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2296
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4892
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        Suspicious use of AdjustPrivilegeToken
        
        PID:1460

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_sguw4ryn.e45.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sguw4ryn.e45.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

Submit Download

powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
MD5 d0c46cad6c0778401e21910bd6b56b70
SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
MD5 SHA1 SHA512

Submit Download