glupteba | 6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a

Analysis

max time kernel
149s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
04/04/2024, 12:45

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General

Target
6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Size 4.1MB
Sample240404-pzhehsga3s
SHA256 6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a
MD5 e3879740ca9f2dd68af31bbd0919e45f
SHA1 6d02df827785e15534a25bef1ec76b617bcfbd03
SHA512 3d30e1fecacf0a3066271947939a1adbc34d52b7ed7237ac41d29667fad203db8663202d49b51fc2d743fe8907502055c946e7923bcf47ed86696df5bb6ec4c9
SSDEEP 98304:e5uGUxyGNHvR+rg+uWcdiM0F3ZjLTFnqJK2M+8rkIIZEcfA:VNJ+k+OSKRkoZEco
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion 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/5064-2-0x0000000005360000-0x0000000005C4B000-memory.dmp	family_glupteba
behavioral2/memory/5064-3-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/5064-51-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/5064-53-0x0000000005360000-0x0000000005C4B000-memory.dmp	family_glupteba
behavioral2/memory/2116-55-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2116-112-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2116-149-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-248-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-259-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-261-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-264-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-267-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-270-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-273-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-277-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-280-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-283-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/1216-285-0x0000000000400000-0x0000000002F43000-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
1536	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
1216	csrss.exe
3788	injector.exe
2020	windefender.exe
1536	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a786-253.dat	upx
behavioral2/memory/2020-257-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1536-262-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1536-268-0x0000000000400000-0x00000000008DF000-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-1-5-21-3594324687-1993884830-4019639329-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\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 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
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

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	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
File created	C:\Windows\rss\csrss.exe	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	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
4824	sc.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
3756	schtasks.exe
404	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-362 = "GTB Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	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\22\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.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\SystemCertificates\Disallowed	powershell.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\22\52C64B7E\@tzres.dll,-162 = "Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-392 = "Arab Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\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\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-622 = "Korea Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5116	powershell.exe
5116	powershell.exe
5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
4732	powershell.exe
4732	powershell.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
1692	powershell.exe
1692	powershell.exe
4632	powershell.exe
4632	powershell.exe
400	powershell.exe
400	powershell.exe
4796	powershell.exe
4796	powershell.exe
248	powershell.exe
248	powershell.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
1216	csrss.exe
1216	csrss.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
1216	csrss.exe
1216	csrss.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
1216	csrss.exe
1216	csrss.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe
3788	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	5116	powershell.exe
Token: SeDebugPrivilege	5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Token: SeImpersonatePrivilege	5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeDebugPrivilege	1692	powershell.exe
Token: SeDebugPrivilege	4632	powershell.exe
Token: SeDebugPrivilege	400	powershell.exe
Token: SeDebugPrivilege	4796	powershell.exe
Token: SeDebugPrivilege	248	powershell.exe
Token: SeSystemEnvironmentPrivilege	1216	csrss.exe
Token: SeSecurityPrivilege	4824	sc.exe
Token: SeSecurityPrivilege	4824	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 5116	5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	77
PID 5064 wrote to memory of 5116	5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	77
PID 5064 wrote to memory of 5116	5064	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	77
PID 2116 wrote to memory of 4732	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	82
PID 2116 wrote to memory of 4732	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	82
PID 2116 wrote to memory of 4732	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	82
PID 2116 wrote to memory of 492	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	84
PID 2116 wrote to memory of 492	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	84
PID 492 wrote to memory of 1536	492	cmd.exe	86
PID 492 wrote to memory of 1536	492	cmd.exe	86
PID 2116 wrote to memory of 1692	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	87
PID 2116 wrote to memory of 1692	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	87
PID 2116 wrote to memory of 1692	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	87
PID 2116 wrote to memory of 4632	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	89
PID 2116 wrote to memory of 4632	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	89
PID 2116 wrote to memory of 4632	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	89
PID 2116 wrote to memory of 1216	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	91
PID 2116 wrote to memory of 1216	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	91
PID 2116 wrote to memory of 1216	2116	6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe	91
PID 1216 wrote to memory of 400	1216	csrss.exe	92
PID 1216 wrote to memory of 400	1216	csrss.exe	92
PID 1216 wrote to memory of 400	1216	csrss.exe	92
PID 1216 wrote to memory of 4796	1216	csrss.exe	98
PID 1216 wrote to memory of 4796	1216	csrss.exe	98
PID 1216 wrote to memory of 4796	1216	csrss.exe	98
PID 1216 wrote to memory of 248	1216	csrss.exe	100
PID 1216 wrote to memory of 248	1216	csrss.exe	100
PID 1216 wrote to memory of 248	1216	csrss.exe	100
PID 1216 wrote to memory of 3788	1216	csrss.exe	102
PID 1216 wrote to memory of 3788	1216	csrss.exe	102
PID 2020 wrote to memory of 1440	2020	windefender.exe	108
PID 2020 wrote to memory of 1440	2020	windefender.exe	108
PID 2020 wrote to memory of 1440	2020	windefender.exe	108
PID 1440 wrote to memory of 4824	1440	cmd.exe	109
PID 1440 wrote to memory of 4824	1440	cmd.exe	109
PID 1440 wrote to memory of 4824	1440	cmd.exe	109

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\6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
"C:\Users\Admin\AppData\Local\Temp\6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.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:5116
- C:\Users\Admin\AppData\Local\Temp\6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.exe
  "C:\Users\Admin\AppData\Local\Temp\6e6ec4420bdaf62ec7f5bb5a5cdf720f763f3ce3d431ef96aab46735c323ab2a.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:2116
- - 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:4732
- - 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:492
  - - 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:1536
- - 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:1692
- - 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:4632
- - 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:1216
  - - 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:400
  - - 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:3756
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4940
  - - 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:4796
  - - 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:248
  - - 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:3788
  - - 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:404
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2020
    - - 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:1440
      - 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:4824

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1536

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

__PSScriptPolicyTest_kjvq5vvz.h3d.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kjvq5vvz.h3d.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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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

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
MD5 SHA1 SHA512

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