glupteba | 311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2024, 14:26

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General

Target
311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Size 4.2MB
Sample240425-rsclssbe6x
SHA256 311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a
MD5 9c00a3d4fbd643675ad6b6f62906b1fa
SHA1 35085def890d030bc0ba0f815e6a39a6a2f8210e
SHA512 7beebd7c79a848f94be5f1137ddc8c8e9157f87b63628cb4700b763fed209149c6fddd2855bb54a6b7fa77091f9bad59ef9f2d66b96afb992c6cd9cc84efd943
SSDEEP 98304:nmURKl+8qDh3QmhY8p8MY+25NVfxUUYlu5WDiAz7Lb7/:nmUk+8qDFQ58eH+6NVfEE4tb7/
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 19 IoCs

resource	yara_rule
behavioral1/memory/4440-2-0x0000000005170000-0x0000000005A5B000-memory.dmp	family_glupteba
behavioral1/memory/4440-3-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/4440-54-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/4440-55-0x0000000005170000-0x0000000005A5B000-memory.dmp	family_glupteba
behavioral1/memory/3312-57-0x0000000005330000-0x0000000005C1B000-memory.dmp	family_glupteba
behavioral1/memory/3312-58-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3312-107-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3312-154-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-191-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-259-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-268-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-270-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-272-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-274-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-276-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-278-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-280-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-282-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/3896-284-0x0000000000400000-0x000000000300B000-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
2432	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3896	csrss.exe
4140	injector.exe
3628	windefender.exe
2172	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0005000000016956-262.dat	upx
behavioral1/memory/3628-266-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/2172-269-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/2172-273-0x0000000000400000-0x00000000008DF000-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-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\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 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

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	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.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	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
File created	C:\Windows\rss\csrss.exe	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.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
1660	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3700	4440	WerFault.exe	86
5060	4440	WerFault.exe	86

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
3500	schtasks.exe
2376	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.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\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4144	powershell.exe
4144	powershell.exe
4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3004	powershell.exe
3004	powershell.exe
3004	powershell.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
4632	powershell.exe
4632	powershell.exe
4632	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
4812	powershell.exe
4812	powershell.exe
4812	powershell.exe
2172	powershell.exe
2172	powershell.exe
2172	powershell.exe
2168	powershell.exe
2168	powershell.exe
2168	powershell.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
3896	csrss.exe
3896	csrss.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
3896	csrss.exe
3896	csrss.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
3896	csrss.exe
3896	csrss.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe
4140	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4144	powershell.exe
Token: SeDebugPrivilege	4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Token: SeImpersonatePrivilege	4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
Token: SeDebugPrivilege	3004	powershell.exe
Token: SeDebugPrivilege	4632	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	4812	powershell.exe
Token: SeDebugPrivilege	2172	powershell.exe
Token: SeDebugPrivilege	2168	powershell.exe
Token: SeSystemEnvironmentPrivilege	3896	csrss.exe
Token: SeSecurityPrivilege	1660	sc.exe
Token: SeSecurityPrivilege	1660	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 4144	4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	91
PID 4440 wrote to memory of 4144	4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	91
PID 4440 wrote to memory of 4144	4440	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	91
PID 3312 wrote to memory of 3004	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	109
PID 3312 wrote to memory of 3004	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	109
PID 3312 wrote to memory of 3004	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	109
PID 3312 wrote to memory of 3500	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	111
PID 3312 wrote to memory of 3500	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	111
PID 3500 wrote to memory of 2432	3500	cmd.exe	113
PID 3500 wrote to memory of 2432	3500	cmd.exe	113
PID 3312 wrote to memory of 4632	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	114
PID 3312 wrote to memory of 4632	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	114
PID 3312 wrote to memory of 4632	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	114
PID 3312 wrote to memory of 2036	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	116
PID 3312 wrote to memory of 2036	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	116
PID 3312 wrote to memory of 2036	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	116
PID 3312 wrote to memory of 3896	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	119
PID 3312 wrote to memory of 3896	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	119
PID 3312 wrote to memory of 3896	3312	311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe	119
PID 3896 wrote to memory of 4812	3896	csrss.exe	122
PID 3896 wrote to memory of 4812	3896	csrss.exe	122
PID 3896 wrote to memory of 4812	3896	csrss.exe	122
PID 3896 wrote to memory of 2172	3896	csrss.exe	128
PID 3896 wrote to memory of 2172	3896	csrss.exe	128
PID 3896 wrote to memory of 2172	3896	csrss.exe	128
PID 3896 wrote to memory of 2168	3896	csrss.exe	130
PID 3896 wrote to memory of 2168	3896	csrss.exe	130
PID 3896 wrote to memory of 2168	3896	csrss.exe	130
PID 3896 wrote to memory of 4140	3896	csrss.exe	132
PID 3896 wrote to memory of 4140	3896	csrss.exe	132
PID 3628 wrote to memory of 2680	3628	windefender.exe	138
PID 3628 wrote to memory of 2680	3628	windefender.exe	138
PID 3628 wrote to memory of 2680	3628	windefender.exe	138
PID 2680 wrote to memory of 1660	2680	cmd.exe	139
PID 2680 wrote to memory of 1660	2680	cmd.exe	139
PID 2680 wrote to memory of 1660	2680	cmd.exe	139

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\311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
"C:\Users\Admin\AppData\Local\Temp\311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4144
- C:\Users\Admin\AppData\Local\Temp\311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.exe
  "C:\Users\Admin\AppData\Local\Temp\311275fa805203a4e4253bcdd70a65d7930422392234a17191b7087520c7262a.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:3312
- - 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:3004
- - 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:3500
  - - 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:2432
- - 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\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:2036
- - 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:3896
  - - 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:4812
  - - 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:3500
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:8
  - - 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:2172
  - - 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:2168
  - - 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:4140
  - - 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:2376
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3628
    - - 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:2680
      - 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:1660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 896
  2⤵
  - Program crash
  PID:3700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 648
  2⤵
  - Program crash
  PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4440 -ip 4440
1⤵
PID:2160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4440 -ip 4440
1⤵
PID:1084

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2172

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_iqex5ntl.41x.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iqex5ntl.41x.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 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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