glupteba | 3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f

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
15/05/2024, 23:31

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General

Target
3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Size 4.1MB
Sample240515-3hybashg3z
SHA256 3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f
MD5 c7322e07da3446de25d2c0d2aaf0be31
SHA1 3bf66312122519f06337bddd55823e6c894390a9
SHA512 da57d9206a8e7978b163231af375df6086545bb723d5759cd4f1e5778c9540e7a8bfe124b7aa181ea91e27c42ef80cc934be5626e0fbdd5faa9822c97571a475
SSDEEP 98304:8CrMvuyR1RyPQdAJHItu4QbOo8ZPCtSlOjuAz5n6hmlDmbf2:85vuu/yDHItfIOpPCSgB5tCK
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 17 IoCs

resource	yara_rule
behavioral1/memory/1784-2-0x0000000004C50000-0x000000000553B000-memory.dmp	family_glupteba
behavioral1/memory/1784-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/1784-55-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1784-67-0x0000000004C50000-0x000000000553B000-memory.dmp	family_glupteba
behavioral1/memory/1784-137-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4828-136-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-229-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-232-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-236-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-241-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-245-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-249-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-252-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-256-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-260-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-265-0x0000000000400000-0x0000000002B0B000-memory.dmp	family_glupteba
behavioral1/memory/1972-269-0x0000000000400000-0x0000000002B0B000-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
3744	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
1972	csrss.exe
4748	injector.exe
3608	windefender.exe
1196	windefender.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3608-223-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/files/0x000900000002346f-224.dat	upx
behavioral1/memory/1196-226-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/3608-225-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1196-233-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1196-240-0x0000000000400000-0x00000000008DF000-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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.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	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
File created	C:\Windows\rss\csrss.exe	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.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
116	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
548	powershell.exe
4636	powershell.exe
2016	powershell.exe
3632	powershell.exe
2724	powershell.exe
4152	powershell.exe
1724	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
2268	schtasks.exe
2676	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	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\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	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,-401 = "Arabic Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time"	windefender.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\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight 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,-2321 = "Sakhalin Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight 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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	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\2a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2724	powershell.exe
2724	powershell.exe
1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4152	powershell.exe
4152	powershell.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
1724	powershell.exe
1724	powershell.exe
548	powershell.exe
548	powershell.exe
4636	powershell.exe
4636	powershell.exe
2016	powershell.exe
2016	powershell.exe
2016	powershell.exe
3632	powershell.exe
3632	powershell.exe
3632	powershell.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
1972	csrss.exe
1972	csrss.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
1972	csrss.exe
1972	csrss.exe
4748	injector.exe
4748	injector.exe
1972	csrss.exe
1972	csrss.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe
4748	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Token: SeImpersonatePrivilege	1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
Token: SeDebugPrivilege	4152	powershell.exe
Token: SeDebugPrivilege	1724	powershell.exe
Token: SeDebugPrivilege	548	powershell.exe
Token: SeDebugPrivilege	4636	powershell.exe
Token: SeDebugPrivilege	2016	powershell.exe
Token: SeDebugPrivilege	3632	powershell.exe
Token: SeSystemEnvironmentPrivilege	1972	csrss.exe
Token: SeSecurityPrivilege	116	sc.exe
Token: SeSecurityPrivilege	116	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 2724	1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	95
PID 1784 wrote to memory of 2724	1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	95
PID 1784 wrote to memory of 2724	1784	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	95
PID 4828 wrote to memory of 4152	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	101
PID 4828 wrote to memory of 4152	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	101
PID 4828 wrote to memory of 4152	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	101
PID 4828 wrote to memory of 748	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	103
PID 4828 wrote to memory of 748	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	103
PID 748 wrote to memory of 3744	748	cmd.exe	105
PID 748 wrote to memory of 3744	748	cmd.exe	105
PID 4828 wrote to memory of 1724	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	106
PID 4828 wrote to memory of 1724	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	106
PID 4828 wrote to memory of 1724	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	106
PID 4828 wrote to memory of 548	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	108
PID 4828 wrote to memory of 548	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	108
PID 4828 wrote to memory of 548	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	108
PID 4828 wrote to memory of 1972	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	110
PID 4828 wrote to memory of 1972	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	110
PID 4828 wrote to memory of 1972	4828	3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe	110
PID 1972 wrote to memory of 4636	1972	csrss.exe	111
PID 1972 wrote to memory of 4636	1972	csrss.exe	111
PID 1972 wrote to memory of 4636	1972	csrss.exe	111
PID 1972 wrote to memory of 2016	1972	csrss.exe	117
PID 1972 wrote to memory of 2016	1972	csrss.exe	117
PID 1972 wrote to memory of 2016	1972	csrss.exe	117
PID 1972 wrote to memory of 3632	1972	csrss.exe	119
PID 1972 wrote to memory of 3632	1972	csrss.exe	119
PID 1972 wrote to memory of 3632	1972	csrss.exe	119
PID 1972 wrote to memory of 4748	1972	csrss.exe	122
PID 1972 wrote to memory of 4748	1972	csrss.exe	122
PID 3608 wrote to memory of 1968	3608	windefender.exe	129
PID 3608 wrote to memory of 1968	3608	windefender.exe	129
PID 3608 wrote to memory of 1968	3608	windefender.exe	129
PID 1968 wrote to memory of 116	1968	cmd.exe	130
PID 1968 wrote to memory of 116	1968	cmd.exe	130
PID 1968 wrote to memory of 116	1968	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\3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
"C:\Users\Admin\AppData\Local\Temp\3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1784
- 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:2724
- C:\Users\Admin\AppData\Local\Temp\3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.exe
  "C:\Users\Admin\AppData\Local\Temp\3a5c13236435bda7fab6a3d620f43ed177a3ee025ef939052fa2522cb498f74f.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:4828
- - 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:4152
- - 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:748
  - - 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:3744
- - 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:1724
- - 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:548
- - 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:1972
  - - 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:4636
  - - 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:2268
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1124
  - - 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:2016
  - - 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:3632
  - - 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:4748
  - - 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:2676
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3608
    - - 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:1968
      - 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:116

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1196

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_0zypqlly.wth.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0zypqlly.wth.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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