glupteba | b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f

Analysis

max time kernel
27s
max time network
290s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
18/04/2024, 23:04

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General

Target
b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Size 4.2MB
Sample240418-22l7psae31
SHA256 b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f
MD5 67158e5f04d4a64b0956a6a292f80918
SHA1 26d989ef64684c12f8608afd8d0c7f40070fc961
SHA512 e770f3e70004037ddd6d7e2bb3013b1f47a7575b71d2f6120d143718eb7ee68ae97d44450253314cc2e9e82564688e28a9e6b96fca5277f39f4de34793f47dbf
SSDEEP 98304:F1k/WfSnvYITkOuylzYhV/sfZ0qQCPoWg3E/CPQ11L:FsW6Y8HuyqUfZtQCg3DqL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba dropper evasion loader persistence trojan upx

Malware Config

Signatures

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

Glupteba payload 35 IoCs

resource	yara_rule
behavioral2/memory/1640-2-0x00000000050B0000-0x000000000599B000-memory.dmp	family_glupteba
behavioral2/memory/1640-3-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1640-299-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1640-301-0x00000000050B0000-0x000000000599B000-memory.dmp	family_glupteba
behavioral2/memory/4652-303-0x0000000005050000-0x000000000593B000-memory.dmp	family_glupteba
behavioral2/memory/4652-305-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4652-576-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4652-584-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4652-1040-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1046-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1537-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1784-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1793-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1795-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1797-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1799-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1805-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1807-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1809-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1811-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1813-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1815-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1817-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1819-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1821-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1823-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1825-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1827-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1829-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1831-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1833-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1835-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1837-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1839-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/4508-1841-0x0000000000400000-0x0000000003017000-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"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4420	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4508	csrss.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000001ac33-1787.dat	upx
behavioral2/memory/64-1792-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2736-1794-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2736-1798-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2736-1804-0x0000000000400000-0x00000000008DF000-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"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	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	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
File created	C:\Windows\rss\csrss.exe	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe

Launches sc.exe 1 IoCs

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

pid	Process
2696	sc.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
3044	schtasks.exe
1652	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	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,-392 = "Arab Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2404	powershell.exe
2404	powershell.exe
2404	powershell.exe
1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4000	powershell.exe
4000	powershell.exe
4000	powershell.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
3732	powershell.exe
3732	powershell.exe
3732	powershell.exe
988	powershell.exe
988	powershell.exe
988	powershell.exe
1152	powershell.exe
1152	powershell.exe
1152	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2404	powershell.exe
Token: SeDebugPrivilege	1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Token: SeImpersonatePrivilege	1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
Token: SeDebugPrivilege	4000	powershell.exe
Token: SeDebugPrivilege	3732	powershell.exe
Token: SeDebugPrivilege	988	powershell.exe
Token: SeDebugPrivilege	1152	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2404	1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	75
PID 1640 wrote to memory of 2404	1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	75
PID 1640 wrote to memory of 2404	1640	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	75
PID 4652 wrote to memory of 4000	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	80
PID 4652 wrote to memory of 4000	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	80
PID 4652 wrote to memory of 4000	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	80
PID 4652 wrote to memory of 3920	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	82
PID 4652 wrote to memory of 3920	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	82
PID 3920 wrote to memory of 4420	3920	cmd.exe	84
PID 3920 wrote to memory of 4420	3920	cmd.exe	84
PID 4652 wrote to memory of 3732	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	85
PID 4652 wrote to memory of 3732	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	85
PID 4652 wrote to memory of 3732	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	85
PID 4652 wrote to memory of 988	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	103
PID 4652 wrote to memory of 988	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	103
PID 4652 wrote to memory of 988	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	103
PID 4652 wrote to memory of 4508	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	89
PID 4652 wrote to memory of 4508	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	89
PID 4652 wrote to memory of 4508	4652	b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe	89
PID 4508 wrote to memory of 1152	4508	csrss.exe	90
PID 4508 wrote to memory of 1152	4508	csrss.exe	90
PID 4508 wrote to memory of 1152	4508	csrss.exe	90

C:\Users\Admin\AppData\Local\Temp\b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
"C:\Users\Admin\AppData\Local\Temp\b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2404
- C:\Users\Admin\AppData\Local\Temp\b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.exe
  "C:\Users\Admin\AppData\Local\Temp\b362d13cc8cc661a19c2b1a1d073494d9fb7a111b9247731860f48bc325c3d4f.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:4652
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4000
- - 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:3920
  - - 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:4420
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3732
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:988
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4508
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1152
  - - 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:3044
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4872
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:2480
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:1616
  - - 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⤵
      PID:2692
  - - 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:1652
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:64
    - - 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⤵
        
        PID:2516
      - 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
        
        PID:2696

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{E10F6C3A-F1AE-4ADC-AA9D-2FE65525666E}
1⤵
PID:988

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_gwifi1xr.45g.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gwifi1xr.45g.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 17da3cfdee18f36a8ed7f5213e0829096fffc6546555ec381e06ada83388beb0
MD5 2c59a3c90f0c16d346f8c4f4df64a6c6
SHA1 324099be473da754fe733c61e2e536e550f1d45c
SHA512 31d54490518b88d44ec2916a1571a21b8a9db0bfc7e680cfc492c942cf81b58c32be929acfd30e14bd0b85e131d752f3c3a695a62bc5e002f761f3c8e0f1df7a
MD5 SHA1 SHA512

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