glupteba | c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/05/2024, 12:34

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General

Target
c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Size 4.1MB
Sample240518-pr7dnsbg45
SHA256 c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f
MD5 eff80b3d4aedb875a9ec24d0759259e9
SHA1 20bf91b0a50c77d471d25656019785d3a2f7f4ed
SHA512 feed2b460059a4aac8eef4635d8a1e7d7ad9092043a4be85c1c8f35e982535e81c036306a482fe6a52ada84f8410a6725caaed2d1632abcbe96cbc169b5156d5
SSDEEP 98304:vQx32Mq02zAeaet/0/YHlEVnWsL/fnVsJseCa8CK6QwXNx08Fo:4x32Mq02zAeLCVnWszfVfeCa8CLXv/S
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 12 IoCs

resource	yara_rule
behavioral2/memory/412-2-0x0000000004B90000-0x000000000547B000-memory.dmp	family_glupteba
behavioral2/memory/412-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/412-24-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/412-56-0x0000000004B90000-0x000000000547B000-memory.dmp	family_glupteba
behavioral2/memory/412-57-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/412-54-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4780-58-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4780-121-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4780-137-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3144-167-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3144-217-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3144-224-0x0000000000400000-0x0000000002B0D000-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
1348	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3144	csrss.exe
5060	injector.exe
2588	windefender.exe
2584	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0004000000000733-227.dat	upx
behavioral2/memory/2588-228-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2584-231-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2588-233-0x0000000000400000-0x00000000008DF000-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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.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 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
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

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	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
File created	C:\Windows\rss\csrss.exe	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.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
3288	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3800	powershell.exe
3532	powershell.exe
4748	powershell.exe
3196	powershell.exe
4084	powershell.exe
1496	powershell.exe
3844	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
3616	schtasks.exe
1780	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\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	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\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.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\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	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	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	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\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
3800	powershell.exe
3800	powershell.exe
3800	powershell.exe
412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
3532	powershell.exe
3532	powershell.exe
3532	powershell.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
4748	powershell.exe
4748	powershell.exe
4748	powershell.exe
3196	powershell.exe
3196	powershell.exe
3196	powershell.exe
4084	powershell.exe
4084	powershell.exe
1496	powershell.exe
1496	powershell.exe
3844	powershell.exe
3844	powershell.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
3144	csrss.exe
3144	csrss.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
3144	csrss.exe
3144	csrss.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
3144	csrss.exe
3144	csrss.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe
5060	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Token: SeImpersonatePrivilege	412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
Token: SeDebugPrivilege	3532	powershell.exe
Token: SeDebugPrivilege	4748	powershell.exe
Token: SeDebugPrivilege	3196	powershell.exe
Token: SeDebugPrivilege	4084	powershell.exe
Token: SeDebugPrivilege	1496	powershell.exe
Token: SeDebugPrivilege	3844	powershell.exe
Token: SeSystemEnvironmentPrivilege	3144	csrss.exe
Token: SeSecurityPrivilege	3288	sc.exe
Token: SeSecurityPrivilege	3288	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 3800	412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	97
PID 412 wrote to memory of 3800	412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	97
PID 412 wrote to memory of 3800	412	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	97
PID 4780 wrote to memory of 3532	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	103
PID 4780 wrote to memory of 3532	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	103
PID 4780 wrote to memory of 3532	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	103
PID 4780 wrote to memory of 3524	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	105
PID 4780 wrote to memory of 3524	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	105
PID 3524 wrote to memory of 1348	3524	cmd.exe	107
PID 3524 wrote to memory of 1348	3524	cmd.exe	107
PID 4780 wrote to memory of 4748	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	108
PID 4780 wrote to memory of 4748	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	108
PID 4780 wrote to memory of 4748	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	108
PID 4780 wrote to memory of 3196	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	110
PID 4780 wrote to memory of 3196	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	110
PID 4780 wrote to memory of 3196	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	110
PID 4780 wrote to memory of 3144	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	112
PID 4780 wrote to memory of 3144	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	112
PID 4780 wrote to memory of 3144	4780	c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe	112
PID 3144 wrote to memory of 4084	3144	csrss.exe	113
PID 3144 wrote to memory of 4084	3144	csrss.exe	113
PID 3144 wrote to memory of 4084	3144	csrss.exe	113
PID 3144 wrote to memory of 1496	3144	csrss.exe	119
PID 3144 wrote to memory of 1496	3144	csrss.exe	119
PID 3144 wrote to memory of 1496	3144	csrss.exe	119
PID 3144 wrote to memory of 3844	3144	csrss.exe	121
PID 3144 wrote to memory of 3844	3144	csrss.exe	121
PID 3144 wrote to memory of 3844	3144	csrss.exe	121
PID 3144 wrote to memory of 5060	3144	csrss.exe	123
PID 3144 wrote to memory of 5060	3144	csrss.exe	123
PID 2588 wrote to memory of 5024	2588	windefender.exe	129
PID 2588 wrote to memory of 5024	2588	windefender.exe	129
PID 2588 wrote to memory of 5024	2588	windefender.exe	129
PID 5024 wrote to memory of 3288	5024	cmd.exe	130
PID 5024 wrote to memory of 3288	5024	cmd.exe	130
PID 5024 wrote to memory of 3288	5024	cmd.exe	130

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\c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
"C:\Users\Admin\AppData\Local\Temp\c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:412
- 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:3800
- C:\Users\Admin\AppData\Local\Temp\c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.exe
  "C:\Users\Admin\AppData\Local\Temp\c40a7f0385eb12cb29239bf09feeb85cd42a64f0b45c6a07782694380110ad5f.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:4780
- - 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:3532
- - 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:3524
  - - 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:1348
- - 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:4748
- - 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:3196
- - 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:3144
  - - 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:4084
  - - 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:3616
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4864
  - - 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:1496
  - - 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:3844
  - - 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:5060
  - - 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:1780
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2588
    - - 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:5024
      - 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:3288

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=940 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:5028

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
PID:2584

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

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Downloads

__PSScriptPolicyTest_ep1otkni.jql.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ep1otkni.jql.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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