glupteba | 02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc

Analysis

max time kernel
13s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
18-05-2024 21:48

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General

Target

02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Size

4.1MB
MD5

0da2a3b5eea4e789c4d9f8c2789b6bb9
SHA1

93f4f90c12ed3682ddbae93a9b6f982b11ed5135
SHA256

02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc
SHA512

7fc383d8db899ec0115bc07761dd08eea513a2243aeea64cc32984e0176161f1a2822d53e18e839aa761f548f5bb6de8f33675ea788ac00ae3730cc153f8198f
SSDEEP

98304:BsVQ+hudF4keJeyEqK0evsENr9r54Wa5Cc1nHXivs:Bs5hioeyE6OsERj43nD

Score

10^/10

glupteba discovery dropper evasion execution loader persistence 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
behavioral2/memory/2852-2-0x00000000048B0000-0x000000000519B000-memory.dmp	family_glupteba
behavioral2/memory/2852-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2852-134-0x00000000048B0000-0x000000000519B000-memory.dmp	family_glupteba
behavioral2/memory/2852-132-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/2852-172-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/5028-171-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-179-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-190-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-194-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-198-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-202-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-206-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-210-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-214-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-218-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-222-0x0000000000400000-0x0000000002732000-memory.dmp	family_glupteba
behavioral2/memory/3132-226-0x0000000000400000-0x0000000002732000-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
3720	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
3132	csrss.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa2d-184.dat	upx
behavioral2/memory/4460-188-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/856-187-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4460-185-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/856-192-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/856-200-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

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-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.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

Drops file in System32 directory 5 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

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	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
File opened for modification	C:\Windows\rss	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe

Launches sc.exe 1 IoCs

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

pid	Process
3596	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5080	powershell.exe
2864	powershell.exe
1940	powershell.exe
4784	powershell.exe
4668	powershell.exe
1040	powershell.exe
3584	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
2760	schtasks.exe
4060	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	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\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	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,-171 = "Central Daylight Time (Mexico)"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.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\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1040	powershell.exe
1040	powershell.exe
2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
3584	powershell.exe
3584	powershell.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
5080	powershell.exe
5080	powershell.exe
2864	powershell.exe
2864	powershell.exe
1940	powershell.exe
1940	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	powershell.exe
Token: SeDebugPrivilege	2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Token: SeImpersonatePrivilege	2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
Token: SeDebugPrivilege	3584	powershell.exe
Token: SeDebugPrivilege	5080	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	1940	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 1040	2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	82
PID 2852 wrote to memory of 1040	2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	82
PID 2852 wrote to memory of 1040	2852	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	82
PID 5028 wrote to memory of 3584	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	87
PID 5028 wrote to memory of 3584	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	87
PID 5028 wrote to memory of 3584	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	87
PID 5028 wrote to memory of 3732	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	89
PID 5028 wrote to memory of 3732	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	89
PID 3732 wrote to memory of 3720	3732	cmd.exe	91
PID 3732 wrote to memory of 3720	3732	cmd.exe	91
PID 5028 wrote to memory of 5080	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	92
PID 5028 wrote to memory of 5080	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	92
PID 5028 wrote to memory of 5080	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	92
PID 5028 wrote to memory of 2864	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	94
PID 5028 wrote to memory of 2864	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	94
PID 5028 wrote to memory of 2864	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	94
PID 5028 wrote to memory of 3132	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	96
PID 5028 wrote to memory of 3132	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	96
PID 5028 wrote to memory of 3132	5028	02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe	96
PID 3132 wrote to memory of 1940	3132	csrss.exe	97
PID 3132 wrote to memory of 1940	3132	csrss.exe	97
PID 3132 wrote to memory of 1940	3132	csrss.exe	97
PID 3132 wrote to memory of 4784	3132	csrss.exe	103
PID 3132 wrote to memory of 4784	3132	csrss.exe	103
PID 3132 wrote to memory of 4784	3132	csrss.exe	103

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\02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
"C:\Users\Admin\AppData\Local\Temp\02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852
- 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:1040
- C:\Users\Admin\AppData\Local\Temp\02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.exe
  "C:\Users\Admin\AppData\Local\Temp\02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc.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:5028
- - 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:3584
- - 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:3732
  - - 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:3720
- - 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:5080
- - 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:2864
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3132
  - - 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:1940
  - - 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:2760
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1904
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      PID:4784
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:4668
  - - 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:4056
  - - 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:4060
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:4460
    - - 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:1124
      - 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:3596

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:856

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mhlgumq0.dbt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
947082944860e1ea28e74b161f88d4cd

SHA1
154edf0463d09c161868b12b3028111a2888eda6

SHA256
4c043a2ca855a0dd6ceb2a062007da495f930fe695e0adbc8a16c0adbf18ee35

SHA512
60a4a5857210a81cb9cfa0eb4a8cf5bf1ea446cddb896f79da9a31d24c6729b54aaefecf58e7e04beb19d451597a0d66a3c17e6800b9188746483b26fceb6290

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
2f9d39e8437ee04b5850ab095c0f66d3

SHA1
3bd1d2643501acac331c424fb5897ee52695ad25

SHA256
d21eee464767e852c2544e74b69dd01b42b17b0a16268af7fde71fc32d15dc93

SHA512
e84d6571f97618c89439ecad1e5022eb62619a335712ed7bd205e29e7e59ea8924dc08a18c81905c12fbfb7cd8edc8f6c452fb84c4981d431a5c25394eb4025e

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
ad1be8c6188dd1f06bc98eea6398cea6

SHA1
02cb77b39094f6481abdf9782ad9e35f2856bf0b

SHA256
611b54f6e12c4afc874a08d0128bc56c734caa5924e8ee329b1144c7d6e30b39

SHA512
7121c49b3df63b6a34aec9484728015085a7bb15abd6dac7926d73fcfb2ed976543b0c6bbba0fd885b68bd934bf939ed8d467b719fba100ce405c4a68772ad16

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
201187ff5055097ffec476ca7df0477b

SHA1
abf04fac5cc1527a1ce780c4fdbbd0cab9cd1525

SHA256
c75b70b671785f669f2d133e6313cabb4f59af6349eb2a24ba88b26abb85eb38

SHA512
bd706ba63be8d0784d6cf97da06a6a3df6d138d4f200b5357c9810193d5f1695cc91385471fc0140ec9365ffdd27420c6f9de81ad7866f726958799f8dc5a101

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.1MB

MD5
0da2a3b5eea4e789c4d9f8c2789b6bb9

SHA1
93f4f90c12ed3682ddbae93a9b6f982b11ed5135

SHA256
02bfeb198ff33bab507fe542f4e6ed8249ca435c732826e13f83ed91c0896fbc

SHA512
7fc383d8db899ec0115bc07761dd08eea513a2243aeea64cc32984e0176161f1a2822d53e18e839aa761f548f5bb6de8f33675ea788ac00ae3730cc153f8198f

Download Submit
C:\Windows\windefender.exe

Filesize
2.0MB

MD5
8e67f58837092385dcf01e8a2b4f5783

SHA1
012c49cfd8c5d06795a6f67ea2baf2a082cf8625

SHA256
166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa

SHA512
40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec

Download Submit
memory/856-200-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/856-192-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/856-187-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/1040-41-0x0000000007D40000-0x0000000007D4A000-memory.dmp

Filesize
40KB

Download
memory/1040-24-0x0000000007B70000-0x0000000007BA4000-memory.dmp

Filesize
208KB

Download
memory/1040-22-0x0000000006790000-0x00000000067DC000-memory.dmp

Filesize
304KB

Download
memory/1040-23-0x0000000006D00000-0x0000000006D46000-memory.dmp

Filesize
280KB

Download
memory/1040-37-0x0000000007BD0000-0x0000000007C74000-memory.dmp

Filesize
656KB

Download
memory/1040-36-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/1040-38-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/1040-40-0x0000000007D00000-0x0000000007D1A000-memory.dmp

Filesize
104KB

Download
memory/1040-20-0x00000000062A0000-0x00000000065F7000-memory.dmp

Filesize
3.3MB

Download
memory/1040-39-0x0000000008340000-0x00000000089BA000-memory.dmp

Filesize
6.5MB

Download
memory/1040-42-0x0000000007E50000-0x0000000007EE6000-memory.dmp

Filesize
600KB

Download
memory/1040-43-0x0000000007D60000-0x0000000007D71000-memory.dmp

Filesize
68KB

Download
memory/1040-35-0x0000000007BB0000-0x0000000007BCE000-memory.dmp

Filesize
120KB

Download
memory/1040-26-0x0000000070400000-0x0000000070757000-memory.dmp

Filesize
3.3MB

Download
memory/1040-25-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/1040-21-0x0000000006740000-0x000000000675E000-memory.dmp

Filesize
120KB

Download
memory/1040-44-0x0000000007DB0000-0x0000000007DBE000-memory.dmp

Filesize
56KB

Download
memory/1040-45-0x0000000007DC0000-0x0000000007DD5000-memory.dmp

Filesize
84KB

Download
memory/1040-46-0x0000000007E10000-0x0000000007E2A000-memory.dmp

Filesize
104KB

Download
memory/1040-47-0x0000000007E30000-0x0000000007E38000-memory.dmp

Filesize
32KB

Download
memory/1040-50-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/1040-10-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/1040-11-0x0000000006130000-0x0000000006196000-memory.dmp

Filesize
408KB

Download
memory/1040-9-0x00000000058B0000-0x00000000058D2000-memory.dmp

Filesize
136KB

Download
memory/1040-8-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/1040-4-0x000000007401E000-0x000000007401F000-memory.dmp

Filesize
4KB

Download
memory/1040-5-0x00000000052B0000-0x00000000052E6000-memory.dmp

Filesize
216KB

Download
memory/1040-7-0x0000000005A90000-0x00000000060BA000-memory.dmp

Filesize
6.2MB

Download
memory/1040-6-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/1940-136-0x0000000070400000-0x0000000070757000-memory.dmp

Filesize
3.3MB

Download
memory/1940-135-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/2852-172-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2852-2-0x00000000048B0000-0x000000000519B000-memory.dmp

Filesize
8.9MB

Download
memory/2852-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2852-1-0x00000000044A0000-0x00000000048A6000-memory.dmp

Filesize
4.0MB

Download
memory/2852-132-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/2852-134-0x00000000048B0000-0x000000000519B000-memory.dmp

Filesize
8.9MB

Download
memory/2852-133-0x00000000044A0000-0x00000000048A6000-memory.dmp

Filesize
4.0MB

Download
memory/2864-108-0x0000000070420000-0x0000000070777000-memory.dmp

Filesize
3.3MB

Download
memory/2864-105-0x0000000005830000-0x0000000005B87000-memory.dmp

Filesize
3.3MB

Download
memory/2864-107-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/3132-218-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-230-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-214-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-210-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-206-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-202-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-190-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-198-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-194-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-222-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-226-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-234-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3132-179-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/3584-71-0x0000000006CE0000-0x0000000006D84000-memory.dmp

Filesize
656KB

Download
memory/3584-62-0x00000000704F0000-0x0000000070847000-memory.dmp

Filesize
3.3MB

Download
memory/3584-60-0x00000000055A0000-0x00000000058F7000-memory.dmp

Filesize
3.3MB

Download
memory/3584-61-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/3584-73-0x0000000007050000-0x0000000007065000-memory.dmp

Filesize
84KB

Download
memory/3584-72-0x0000000007000000-0x0000000007011000-memory.dmp

Filesize
68KB

Download
memory/4460-185-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/4460-188-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/4668-154-0x0000000005A30000-0x0000000005D87000-memory.dmp

Filesize
3.3MB

Download
memory/4668-158-0x0000000070350000-0x00000000706A7000-memory.dmp

Filesize
3.3MB

Download
memory/4668-167-0x0000000007270000-0x0000000007314000-memory.dmp

Filesize
656KB

Download
memory/4668-156-0x0000000006530000-0x000000000657C000-memory.dmp

Filesize
304KB

Download
memory/4668-157-0x00000000701A0000-0x00000000701EC000-memory.dmp

Filesize
304KB

Download
memory/4668-168-0x0000000007580000-0x0000000007591000-memory.dmp

Filesize
68KB

Download
memory/4668-169-0x0000000005DC0000-0x0000000005DD5000-memory.dmp

Filesize
84KB

Download
memory/5028-171-0x0000000000400000-0x0000000002732000-memory.dmp

Filesize
35.2MB

Download
memory/5080-87-0x0000000070400000-0x0000000070757000-memory.dmp

Filesize
3.3MB

Download
memory/5080-86-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download