glupteba | ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1

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
06/06/2024, 10:18

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General

Target
ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Size 4.1MB
Sample240606-mbyeqach2z
SHA256 ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1
MD5 dfb32879d0fd63b6442f140775eb1975
SHA1 a77f4bf5a1730d314dca28719fb0e5b4e2c11ace
SHA512 b427f98a1148ec135b38a4e7b6c81a1837daf77cfb1412a6b04c3627a2b276581732b369ff732a9d5353b44e56f7ac994792ef4238db3c761dd4b1b47c8a3c16
SSDEEP 98304:JGrnwiB2dYFBQLVw0Jv37FWi1chPr/xRmmjECQgDNO:JG7LuY/yhvJWf/qmwCQmO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit

Malware Config

Signatures

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

Glupteba payload 14 IoCs

resource	yara_rule
behavioral2/memory/1596-2-0x0000000004FC0000-0x00000000058AB000-memory.dmp	family_glupteba
behavioral2/memory/1596-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1596-9-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/1596-32-0x0000000004FC0000-0x00000000058AB000-memory.dmp	family_glupteba
behavioral2/memory/1596-55-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1596-54-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/1596-60-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/1512-99-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/1512-135-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/1512-140-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/4484-168-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/4484-198-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/4484-228-0x0000000000400000-0x0000000002EDD000-memory.dmp	family_glupteba
behavioral2/memory/4484-230-0x0000000000400000-0x0000000002EDD000-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
5036	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
4484	csrss.exe
3556	injector.exe

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\""	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.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\""	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 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
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	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
File created	C:\Windows\rss\csrss.exe	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3172	powershell.exe
2464	powershell.exe
3488	powershell.exe
1976	powershell.exe
2348	powershell.exe
2960	powershell.exe
384	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
4036	schtasks.exe
2708	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,-261 = "GMT Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.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,-351 = "FLE Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\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,-2612 = "Bougainville Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	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,-431 = "Iran Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	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\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
2464	powershell.exe
2464	powershell.exe
2464	powershell.exe
1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
3488	powershell.exe
3488	powershell.exe
3488	powershell.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
1976	powershell.exe
1976	powershell.exe
1976	powershell.exe
2348	powershell.exe
2348	powershell.exe
2348	powershell.exe
2960	powershell.exe
2960	powershell.exe
384	powershell.exe
384	powershell.exe
3172	powershell.exe
3172	powershell.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
4484	csrss.exe
4484	csrss.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
4484	csrss.exe
4484	csrss.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe
3556	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	powershell.exe
Token: SeDebugPrivilege	1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Token: SeImpersonatePrivilege	1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
Token: SeDebugPrivilege	3488	powershell.exe
Token: SeDebugPrivilege	1976	powershell.exe
Token: SeDebugPrivilege	2348	powershell.exe
Token: SeDebugPrivilege	2960	powershell.exe
Token: SeDebugPrivilege	384	powershell.exe
Token: SeDebugPrivilege	3172	powershell.exe
Token: SeSystemEnvironmentPrivilege	4484	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 2464	1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	99
PID 1596 wrote to memory of 2464	1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	99
PID 1596 wrote to memory of 2464	1596	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	99
PID 1512 wrote to memory of 3488	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	105
PID 1512 wrote to memory of 3488	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	105
PID 1512 wrote to memory of 3488	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	105
PID 1512 wrote to memory of 3836	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	107
PID 1512 wrote to memory of 3836	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	107
PID 3836 wrote to memory of 5036	3836	cmd.exe	109
PID 3836 wrote to memory of 5036	3836	cmd.exe	109
PID 1512 wrote to memory of 1976	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	110
PID 1512 wrote to memory of 1976	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	110
PID 1512 wrote to memory of 1976	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	110
PID 1512 wrote to memory of 2348	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	112
PID 1512 wrote to memory of 2348	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	112
PID 1512 wrote to memory of 2348	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	112
PID 1512 wrote to memory of 4484	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	114
PID 1512 wrote to memory of 4484	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	114
PID 1512 wrote to memory of 4484	1512	ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe	114
PID 4484 wrote to memory of 2960	4484	csrss.exe	115
PID 4484 wrote to memory of 2960	4484	csrss.exe	115
PID 4484 wrote to memory of 2960	4484	csrss.exe	115
PID 4484 wrote to memory of 384	4484	csrss.exe	120
PID 4484 wrote to memory of 384	4484	csrss.exe	120
PID 4484 wrote to memory of 384	4484	csrss.exe	120
PID 4484 wrote to memory of 3172	4484	csrss.exe	123
PID 4484 wrote to memory of 3172	4484	csrss.exe	123
PID 4484 wrote to memory of 3172	4484	csrss.exe	123
PID 4484 wrote to memory of 3556	4484	csrss.exe	125
PID 4484 wrote to memory of 3556	4484	csrss.exe	125

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\ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
"C:\Users\Admin\AppData\Local\Temp\ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596
- 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:2464
- C:\Users\Admin\AppData\Local\Temp\ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.exe
  "C:\Users\Admin\AppData\Local\Temp\ec045ab4c0957a1930d5effe265d30a1624713ea2897b78b7fddb5322d9960f1.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:1512
- - 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:3488
- - 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:3836
  - - 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:5036
- - 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:1976
- - 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:2348
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4484
  - - 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:2960
  - - 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:4036
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1792
  - - 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:384
  - - 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:3172
  - - 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:3556
  - - 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:2708

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=4076 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
1⤵
PID:4640

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_txasefdj.coq.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_txasefdj.coq.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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