glupteba | 4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358

Analysis

max time kernel
35s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 04:31

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General

Target

4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Size

4.2MB
MD5

ae8b469776db2c1cb6761a351ba8315e
SHA1

df41fb7099ece9fd6acee8da00b7b54acef378d1
SHA256

4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358
SHA512

25138323836a5cab0cfc6aba5f74c44f1fcc3dc3ee144191a05962e4ae20dd10f151e1e1f7dc1d3e09ebf7470eb3095c3fb6650b8dabea8d6fcb371bae3d8858
SSDEEP

98304:jPisFK/8uM75gZt+y9kRZ+r2YOUQ1QQTOc8FgNKYKuIT:WFW6PkRZ+izUpQqmXLIT

Score

10^/10

glupteba discovery dropper evasion loader persistence

Malware Config

Signatures

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

Glupteba payload 10 IoCs

resource	yara_rule
behavioral2/memory/732-2-0x0000000002F30000-0x000000000381B000-memory.dmp	family_glupteba
behavioral2/memory/732-3-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/732-30-0x0000000002F30000-0x000000000381B000-memory.dmp	family_glupteba
behavioral2/memory/732-32-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/732-50-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/2768-61-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/2768-106-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/732-122-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/2768-139-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/2768-240-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
2044	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1260	csrss.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-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.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 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	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
File created	C:\Windows\rss\csrss.exe	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
8	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.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\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
5024	powershell.exe
5024	powershell.exe
732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
640	powershell.exe
640	powershell.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
1156	powershell.exe
1156	powershell.exe
3080	powershell.exe
3080	powershell.exe
3508	powershell.exe
3508	powershell.exe
1904	powershell.exe
1904	powershell.exe
5020	powershell.exe
5020	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	5024	powershell.exe
Token: SeDebugPrivilege	732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Token: SeImpersonatePrivilege	732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
Token: SeDebugPrivilege	640	powershell.exe
Token: SeDebugPrivilege	1156	powershell.exe
Token: SeDebugPrivilege	3080	powershell.exe
Token: SeDebugPrivilege	3508	powershell.exe
Token: SeDebugPrivilege	1904	powershell.exe
Token: SeDebugPrivilege	5020	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 5024	732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	84
PID 732 wrote to memory of 5024	732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	84
PID 732 wrote to memory of 5024	732	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	84
PID 2768 wrote to memory of 640	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	92
PID 2768 wrote to memory of 640	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	92
PID 2768 wrote to memory of 640	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	92
PID 2768 wrote to memory of 3308	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	114
PID 2768 wrote to memory of 3308	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	114
PID 3308 wrote to memory of 2044	3308	Conhost.exe	99
PID 3308 wrote to memory of 2044	3308	Conhost.exe	99
PID 2768 wrote to memory of 1156	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	100
PID 2768 wrote to memory of 1156	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	100
PID 2768 wrote to memory of 1156	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	100
PID 2768 wrote to memory of 3080	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	102
PID 2768 wrote to memory of 3080	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	102
PID 2768 wrote to memory of 3080	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	102
PID 2768 wrote to memory of 1260	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	104
PID 2768 wrote to memory of 1260	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	104
PID 2768 wrote to memory of 1260	2768	4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe	104
PID 1260 wrote to memory of 3508	1260	csrss.exe	106
PID 1260 wrote to memory of 3508	1260	csrss.exe	106
PID 1260 wrote to memory of 3508	1260	csrss.exe	106
PID 1260 wrote to memory of 1904	1260	csrss.exe	110
PID 1260 wrote to memory of 1904	1260	csrss.exe	110
PID 1260 wrote to memory of 1904	1260	csrss.exe	110
PID 1260 wrote to memory of 5020	1260	csrss.exe	115
PID 1260 wrote to memory of 5020	1260	csrss.exe	115
PID 1260 wrote to memory of 5020	1260	csrss.exe	115

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\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
"C:\Users\Admin\AppData\Local\Temp\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:732
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5024
- C:\Users\Admin\AppData\Local\Temp\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.exe
  "C:\Users\Admin\AppData\Local\Temp\4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358.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:2768
- - 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:640
- - 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⤵
    PID:3308
  - - 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:2044
- - 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:1156
- - 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:3080
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1260
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3508
  - - 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:8
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1232
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1904
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5020

C:\Windows\System32\Conhost.exe
\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
1⤵
- Suspicious use of WriteProcessMemory
PID:3308

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

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_ks4oaios.vdz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
19KB

MD5
358e6bc95dc8cc4106f41ff739003989

SHA1
7c100654f1fb74a67337d30dbb723cc0ea29c01c

SHA256
8b204408183df4e1ea6dfe0e8e79e49a89226bd78860f8f4ce00dc080b33a181

SHA512
9d079fd7d9772c206260c0c84ad8cb84906d717d0fd4c984a438b7774c6ca2fda3062795ddaf0b6d26070ff0283a51992d0a754fe837ccb8ec70fe980b91c6c0

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

Filesize
19KB

MD5
3557623b6668b49f4db6527304474abe

SHA1
10c938a3fcb34aa24c043a1214f658a3e4c7d6a5

SHA256
b0ba3717bf2484a3a2769f02605aba097b2da3246c12197cded128f65af571ef

SHA512
de62ddeb71b07a31cf421cda6c0808b7bc92960d0b4d581089bbb01b8422058fd0de2127d9c6fd7d35b7f3f133bb78b95189e366e05550643da07fa9eee9f144

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

Filesize
19KB

MD5
e6026aa2c7414cbc626af381ad1f585c

SHA1
4c02fd6f4914b03d566b40f75d6a6140a06375d9

SHA256
e886aa7a7281b4f5b4df7955dd03539ad569cc365800a629274db5fa06bc314c

SHA512
bd509d418c8cdadcd0dcfc4b2eccfecc36505ec6e85fa321534cec2b56c5bc8a83d05cd143d93033a3e8f5f6d7223ab0227121dd1568e7b3de579090d2363a4b

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

Filesize
19KB

MD5
01a95cc735fc092e9e8acd999d3f2534

SHA1
0bb291b8eb7d64ea427931c25e8d11b3e2cf2fd2

SHA256
254b492b6b0b358ee82d51128ee165271374f97e497d73457cce6badb8899615

SHA512
8915e623837b94d2934eab49c13136c9fea3f5441a93deced64ed4c81dc32368ac7e1b1405e5afdc4e5a0cfce81071031d822173eacddd424cea6442501cec87

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

Filesize
19KB

MD5
af493d7d66c89a3eb84e2efeae3fdf7f

SHA1
1935e1ef33b0da3a2cd9827e748b51184faf72fb

SHA256
df8269e4974cf1f1e50d9fc188d4bcc46daf9809de007f8da68375b3edb8519e

SHA512
a0ed5d0b09f24bd012052184576b1e2c05b3165b7de91959a66f86fe30b3c180f931837591ab10a8e20177d4500979d02079fbabedee799527d3563ed3da18b5

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

Filesize
4.2MB

MD5
ae8b469776db2c1cb6761a351ba8315e

SHA1
df41fb7099ece9fd6acee8da00b7b54acef378d1

SHA256
4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358

SHA512
25138323836a5cab0cfc6aba5f74c44f1fcc3dc3ee144191a05962e4ae20dd10f151e1e1f7dc1d3e09ebf7470eb3095c3fb6650b8dabea8d6fcb371bae3d8858

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

Filesize
4.2MB

MD5
ae8b469776db2c1cb6761a351ba8315e

SHA1
df41fb7099ece9fd6acee8da00b7b54acef378d1

SHA256
4603f0828ed85b5d89180e3978bb7a83b96ec2e11a20d9b309151ab15b747358

SHA512
25138323836a5cab0cfc6aba5f74c44f1fcc3dc3ee144191a05962e4ae20dd10f151e1e1f7dc1d3e09ebf7470eb3095c3fb6650b8dabea8d6fcb371bae3d8858

Download Submit
memory/640-62-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/640-88-0x0000000007D10000-0x0000000007D21000-memory.dmp

Filesize
68KB

Download
memory/640-75-0x000000007FA30000-0x000000007FA40000-memory.dmp

Filesize
64KB

Download
memory/640-64-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/640-63-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/640-74-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/640-77-0x0000000070C50000-0x0000000070FA4000-memory.dmp

Filesize
3.3MB

Download
memory/640-92-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/640-87-0x00000000079F0000-0x0000000007A93000-memory.dmp

Filesize
652KB

Download
memory/640-89-0x0000000007D60000-0x0000000007D74000-memory.dmp

Filesize
80KB

Download
memory/640-76-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

Filesize
304KB

Download
memory/732-3-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/732-30-0x0000000002F30000-0x000000000381B000-memory.dmp

Filesize
8.9MB

Download
memory/732-1-0x0000000002B30000-0x0000000002F29000-memory.dmp

Filesize
4.0MB

Download
memory/732-122-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/732-32-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/732-25-0x0000000002B30000-0x0000000002F29000-memory.dmp

Filesize
4.0MB

Download
memory/732-2-0x0000000002F30000-0x000000000381B000-memory.dmp

Filesize
8.9MB

Download
memory/732-50-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1156-111-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

Filesize
304KB

Download
memory/1156-112-0x0000000070C70000-0x0000000070FC4000-memory.dmp

Filesize
3.3MB

Download
memory/1156-95-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-124-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-107-0x0000000005D70000-0x00000000060C4000-memory.dmp

Filesize
3.3MB

Download
memory/1156-96-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download
memory/1156-109-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download
memory/1156-110-0x000000007F4E0000-0x000000007F4F0000-memory.dmp

Filesize
64KB

Download
memory/2768-93-0x0000000002C30000-0x000000000302C000-memory.dmp

Filesize
4.0MB

Download
memory/2768-106-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2768-60-0x0000000002C30000-0x000000000302C000-memory.dmp

Filesize
4.0MB

Download
memory/2768-61-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2768-139-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/2768-240-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/3080-126-0x00000000022C0000-0x00000000022D0000-memory.dmp

Filesize
64KB

Download
memory/3080-127-0x00000000022C0000-0x00000000022D0000-memory.dmp

Filesize
64KB

Download
memory/3080-125-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/3080-137-0x0000000005540000-0x0000000005894000-memory.dmp

Filesize
3.3MB

Download
memory/5024-28-0x0000000007520000-0x0000000007B9A000-memory.dmp

Filesize
6.5MB

Download
memory/5024-58-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/5024-55-0x0000000007460000-0x0000000007468000-memory.dmp

Filesize
32KB

Download
memory/5024-54-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

Filesize
104KB

Download
memory/5024-53-0x0000000007420000-0x0000000007434000-memory.dmp

Filesize
80KB

Download
memory/5024-52-0x0000000007410000-0x000000000741E000-memory.dmp

Filesize
56KB

Download
memory/5024-51-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/5024-49-0x00000000073D0000-0x00000000073E1000-memory.dmp

Filesize
68KB

Download
memory/5024-48-0x0000000007470000-0x0000000007506000-memory.dmp

Filesize
600KB

Download
memory/5024-47-0x00000000073B0000-0x00000000073BA000-memory.dmp

Filesize
40KB

Download
memory/5024-46-0x00000000072C0000-0x0000000007363000-memory.dmp

Filesize
652KB

Download
memory/5024-45-0x0000000007260000-0x000000000727E000-memory.dmp

Filesize
120KB

Download
memory/5024-35-0x0000000070C50000-0x0000000070FA4000-memory.dmp

Filesize
3.3MB

Download
memory/5024-34-0x0000000070AD0000-0x0000000070B1C000-memory.dmp

Filesize
304KB

Download
memory/5024-33-0x000000007F100000-0x000000007F110000-memory.dmp

Filesize
64KB

Download
memory/5024-31-0x0000000007280000-0x00000000072B2000-memory.dmp

Filesize
200KB

Download
memory/5024-29-0x0000000006EC0000-0x0000000006EDA000-memory.dmp

Filesize
104KB

Download
memory/5024-27-0x0000000006E20000-0x0000000006E96000-memory.dmp

Filesize
472KB

Download
memory/5024-26-0x00000000028B0000-0x00000000028C0000-memory.dmp

Filesize
64KB

Download
memory/5024-24-0x0000000006250000-0x0000000006294000-memory.dmp

Filesize
272KB

Download
memory/5024-23-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

Filesize
304KB

Download
memory/5024-22-0x0000000005D00000-0x0000000005D1E000-memory.dmp

Filesize
120KB

Download
memory/5024-21-0x00000000057A0000-0x0000000005AF4000-memory.dmp

Filesize
3.3MB

Download
memory/5024-11-0x0000000005570000-0x00000000055D6000-memory.dmp

Filesize
408KB

Download
memory/5024-10-0x0000000004EB0000-0x0000000004F16000-memory.dmp

Filesize
408KB

Download
memory/5024-9-0x0000000004D10000-0x0000000004D32000-memory.dmp

Filesize
136KB

Download
memory/5024-8-0x0000000004F40000-0x0000000005568000-memory.dmp

Filesize
6.2MB

Download
memory/5024-7-0x00000000028B0000-0x00000000028C0000-memory.dmp

Filesize
64KB

Download
memory/5024-6-0x00000000028B0000-0x00000000028C0000-memory.dmp

Filesize
64KB

Download
memory/5024-4-0x0000000002720000-0x0000000002756000-memory.dmp

Filesize
216KB

Download
memory/5024-5-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download