glupteba | 45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 21:49

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General

Target
45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Size 4.1MB
Sample240517-1phs3sch39
SHA256 45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739
MD5 3fa7683b12e5363bfba20f6dbac26ab3
SHA1 07c3bd19b5061d9e37f0696d9060953e6db2f7eb
SHA512 fb23e8fce9b7bd7f4c90170e1fe8eab64bc53f50ac8b190af3cc86bc73395a772af9aac614f54b5afdaa0291e7794e1cea75fc591f0bdb883fb48ef985ee5948
SSDEEP 98304:d/1aS45wg9wCj95WS7Tld+z+RCAmv1nHALSIF:d/oSJg9H959pd0eCv1HALSe
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 19 IoCs

resource	yara_rule
behavioral1/memory/3280-2-0x0000000004C20000-0x000000000550B000-memory.dmp	family_glupteba
behavioral1/memory/3280-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/3280-155-0x0000000004C20000-0x000000000550B000-memory.dmp	family_glupteba
behavioral1/memory/3280-143-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4764-195-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/3280-213-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4448-215-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-226-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-230-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-234-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-238-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-242-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-246-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-250-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-254-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-258-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-262-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-266-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral1/memory/4448-270-0x0000000000400000-0x0000000002B08000-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
3020	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
4448	csrss.exe
936	injector.exe
3432	windefender.exe
4408	windefender.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3432-220-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/files/0x0008000000023467-219.dat	upx
behavioral1/memory/4408-223-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/3432-224-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4408-228-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4408-236-0x0000000000400000-0x00000000008DF000-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-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\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	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe

Launches sc.exe 1 IoCs

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

pid	Process
1408	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
856	powershell.exe
3928	powershell.exe
3496	powershell.exe
3352	powershell.exe
348	powershell.exe
5012	powershell.exe
3248	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
2884	schtasks.exe
2396	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.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,-1891 = "Russia TZ 3 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time"	windefender.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\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	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\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5012	powershell.exe
5012	powershell.exe
3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
3248	powershell.exe
3248	powershell.exe
3248	powershell.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
856	powershell.exe
856	powershell.exe
856	powershell.exe
3928	powershell.exe
3928	powershell.exe
3928	powershell.exe
3496	powershell.exe
3496	powershell.exe
3496	powershell.exe
3352	powershell.exe
3352	powershell.exe
3352	powershell.exe
348	powershell.exe
348	powershell.exe
348	powershell.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
4448	csrss.exe
4448	csrss.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
4448	csrss.exe
4448	csrss.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
4448	csrss.exe
4448	csrss.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe
936	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Token: SeImpersonatePrivilege	3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
Token: SeDebugPrivilege	3248	powershell.exe
Token: SeDebugPrivilege	856	powershell.exe
Token: SeDebugPrivilege	3928	powershell.exe
Token: SeDebugPrivilege	3496	powershell.exe
Token: SeDebugPrivilege	3352	powershell.exe
Token: SeDebugPrivilege	348	powershell.exe
Token: SeSystemEnvironmentPrivilege	4448	csrss.exe
Token: SeSecurityPrivilege	1408	sc.exe
Token: SeSecurityPrivilege	1408	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3280 wrote to memory of 5012	3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	88
PID 3280 wrote to memory of 5012	3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	88
PID 3280 wrote to memory of 5012	3280	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	88
PID 4764 wrote to memory of 3248	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	99
PID 4764 wrote to memory of 3248	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	99
PID 4764 wrote to memory of 3248	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	99
PID 4764 wrote to memory of 4420	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	101
PID 4764 wrote to memory of 4420	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	101
PID 4420 wrote to memory of 3020	4420	cmd.exe	103
PID 4420 wrote to memory of 3020	4420	cmd.exe	103
PID 4764 wrote to memory of 856	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	104
PID 4764 wrote to memory of 856	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	104
PID 4764 wrote to memory of 856	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	104
PID 4764 wrote to memory of 3928	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	124
PID 4764 wrote to memory of 3928	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	124
PID 4764 wrote to memory of 3928	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	124
PID 4764 wrote to memory of 4448	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	110
PID 4764 wrote to memory of 4448	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	110
PID 4764 wrote to memory of 4448	4764	45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe	110
PID 4448 wrote to memory of 3496	4448	csrss.exe	111
PID 4448 wrote to memory of 3496	4448	csrss.exe	111
PID 4448 wrote to memory of 3496	4448	csrss.exe	111
PID 4448 wrote to memory of 3352	4448	csrss.exe	117
PID 4448 wrote to memory of 3352	4448	csrss.exe	117
PID 4448 wrote to memory of 3352	4448	csrss.exe	117
PID 4448 wrote to memory of 348	4448	csrss.exe	119
PID 4448 wrote to memory of 348	4448	csrss.exe	119
PID 4448 wrote to memory of 348	4448	csrss.exe	119
PID 4448 wrote to memory of 936	4448	csrss.exe	121
PID 4448 wrote to memory of 936	4448	csrss.exe	121
PID 3432 wrote to memory of 1888	3432	windefender.exe	127
PID 3432 wrote to memory of 1888	3432	windefender.exe	127
PID 3432 wrote to memory of 1888	3432	windefender.exe	127
PID 1888 wrote to memory of 1408	1888	cmd.exe	128
PID 1888 wrote to memory of 1408	1888	cmd.exe	128
PID 1888 wrote to memory of 1408	1888	cmd.exe	128

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\45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
"C:\Users\Admin\AppData\Local\Temp\45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3280
- 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:5012
- C:\Users\Admin\AppData\Local\Temp\45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.exe
  "C:\Users\Admin\AppData\Local\Temp\45e4443b1a5f5cadf1280d8e7f6dc0ecf453cd2e6c1463d92dac534d69afc739.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:4764
- - 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:3248
- - 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:4420
  - - 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:3020
- - 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:856
- - 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:3928
- - 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:4448
  - - 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:3496
  - - 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:2884
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1488
  - - 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:3352
  - - 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:348
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:936
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:2396
    - - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        5⤵
        
        PID:3928
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3432
    - - 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:1888
      - 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:1408

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4408

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

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Downloads

__PSScriptPolicyTest_awse5osg.qfo.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_awse5osg.qfo.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 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
MD5 3d086a433708053f9bf9523e1d87a4e8
SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
MD5 SHA1 SHA512

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