glupteba | e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7

Analysis

max time kernel
300s
max time network
303s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
17/05/2024, 00:22

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General

Target
e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Size 4.1MB
Sample240517-anzr4agg62
SHA256 e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7
MD5 447c7cc03c38ec54cb804a2a4ca60e91
SHA1 582a3e20308eee948e5cf60fb41974ef1312170b
SHA512 6ff1754243d519ddb79f12871a4158e86444439fee38632219ec6376373283343c00102142b5244311618683f7ce1b512f6bad0676f22e38c63dbaa490adc638
SSDEEP 49152:H7QmEbcqaZzGq8QcqWQjVg2jH5kShpuw/ycY+0yIq1wyJFXQ2nyEuQGmm3:bWbHa59Z7dviShpLY7RCwkXQ2n5o3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit trojan upx

Malware Config

Signatures

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

Glupteba payload 33 IoCs

resource	yara_rule
behavioral2/memory/2688-2-0x0000000002D50000-0x000000000363B000-memory.dmp	family_glupteba
behavioral2/memory/2688-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2688-66-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2688-300-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2688-304-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2688-305-0x0000000002D50000-0x000000000363B000-memory.dmp	family_glupteba
behavioral2/memory/2652-548-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2652-1032-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1377-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1764-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1773-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1776-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1778-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1780-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1782-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1784-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1786-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1788-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1790-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1792-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1794-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1796-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1798-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1800-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1802-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1804-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1806-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1808-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1810-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1812-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1814-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1816-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4908-1818-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5016	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
4908	csrss.exe
204	injector.exe
3688	windefender.exe
4544	windefender.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000001abae-1767.dat	upx
behavioral2/memory/3688-1768-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4544-1771-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3688-1772-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4544-1775-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4544-1779-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4544-1781-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.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-1-5-21-1739856679-3467441365-73334005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1739856679-3467441365-73334005-1000\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	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
File created	C:\Windows\rss\csrss.exe	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe

Launches sc.exe 1 IoCs

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

pid	Process
4856	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1104	powershell.exe
1312	powershell.exe
2448	powershell.exe
792	powershell.exe
2320	powershell.exe
1420	powershell.exe
2744	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
4724	schtasks.exe
304	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time"	windefender.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.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\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	windefender.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\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	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\1a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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\1a\52C64B7E\@tzres.dll,-162 = "Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1420	powershell.exe
1420	powershell.exe
1420	powershell.exe
2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2744	powershell.exe
2744	powershell.exe
2744	powershell.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
1104	powershell.exe
1104	powershell.exe
1104	powershell.exe
1312	powershell.exe
1312	powershell.exe
1312	powershell.exe
2448	powershell.exe
2448	powershell.exe
2448	powershell.exe
792	powershell.exe
792	powershell.exe
792	powershell.exe
2320	powershell.exe
2320	powershell.exe
2320	powershell.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
4908	csrss.exe
4908	csrss.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
4908	csrss.exe
4908	csrss.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
4908	csrss.exe
4908	csrss.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe
204	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1420	powershell.exe
Token: SeDebugPrivilege	2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Token: SeImpersonatePrivilege	2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
Token: SeDebugPrivilege	2744	powershell.exe
Token: SeDebugPrivilege	1104	powershell.exe
Token: SeDebugPrivilege	1312	powershell.exe
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	792	powershell.exe
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeSystemEnvironmentPrivilege	4908	csrss.exe
Token: SeSecurityPrivilege	4856	sc.exe
Token: SeSecurityPrivilege	4856	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 1420	2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	74
PID 2688 wrote to memory of 1420	2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	74
PID 2688 wrote to memory of 1420	2688	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	74
PID 2652 wrote to memory of 2744	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	79
PID 2652 wrote to memory of 2744	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	79
PID 2652 wrote to memory of 2744	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	79
PID 2652 wrote to memory of 4544	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	81
PID 2652 wrote to memory of 4544	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	81
PID 4544 wrote to memory of 5016	4544	cmd.exe	83
PID 4544 wrote to memory of 5016	4544	cmd.exe	83
PID 2652 wrote to memory of 1104	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	84
PID 2652 wrote to memory of 1104	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	84
PID 2652 wrote to memory of 1104	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	84
PID 2652 wrote to memory of 1312	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	86
PID 2652 wrote to memory of 1312	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	86
PID 2652 wrote to memory of 1312	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	86
PID 2652 wrote to memory of 4908	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	88
PID 2652 wrote to memory of 4908	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	88
PID 2652 wrote to memory of 4908	2652	e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe	88
PID 4908 wrote to memory of 2448	4908	csrss.exe	89
PID 4908 wrote to memory of 2448	4908	csrss.exe	89
PID 4908 wrote to memory of 2448	4908	csrss.exe	89
PID 4908 wrote to memory of 792	4908	csrss.exe	96
PID 4908 wrote to memory of 792	4908	csrss.exe	96
PID 4908 wrote to memory of 792	4908	csrss.exe	96
PID 4908 wrote to memory of 2320	4908	csrss.exe	98
PID 4908 wrote to memory of 2320	4908	csrss.exe	98
PID 4908 wrote to memory of 2320	4908	csrss.exe	98
PID 4908 wrote to memory of 204	4908	csrss.exe	100
PID 4908 wrote to memory of 204	4908	csrss.exe	100
PID 3688 wrote to memory of 1500	3688	windefender.exe	107
PID 3688 wrote to memory of 1500	3688	windefender.exe	107
PID 3688 wrote to memory of 1500	3688	windefender.exe	107
PID 1500 wrote to memory of 4856	1500	cmd.exe	108
PID 1500 wrote to memory of 4856	1500	cmd.exe	108
PID 1500 wrote to memory of 4856	1500	cmd.exe	108

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\e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
"C:\Users\Admin\AppData\Local\Temp\e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2688
- 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:1420
- C:\Users\Admin\AppData\Local\Temp\e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe
  "C:\Users\Admin\AppData\Local\Temp\e219c4d09693c84965c8e1925678c2feee6ca76d70022512764ef95f2a1474b7.exe"
  2⤵
  - Windows security bypass
  - Windows security modification
  - 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:2652
- - 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:2744
- - 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:4544
  - - 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:5016
- - 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:1104
- - 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:1312
- - 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:4908
  - - 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:2448
  - - 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:4724
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1708
  - - 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:792
  - - 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:2320
  - - 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:204
  - - 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:304
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3688
    - - 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:1500
      - 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:4856

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4544

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

Disable or Modify Tools

T1562.001

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_jvf4pobi.mgm.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jvf4pobi.mgm.ps1
Size 1B
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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 1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
MD5 1c19c16e21c97ed42d5beabc93391fc5
SHA1 8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA512 7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
MD5 SHA1 SHA512

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