glupteba | 6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
29/04/2024, 04:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Size

4.1MB
MD5

b068b5a5ee8be4de86f67b5c2b5bf5d5
SHA1

5e18f8587e2f0dcb60b7b8da2ba34b322dc3a101
SHA256

6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e
SHA512

bcedd5ef88e873b4273b6d5938854655006866f8fdcfcea0f845c2ce7dc6582b1787a5f4b668ae9e7bc09c73d1e574dc2bfe5d46a24cd7b8d62e8dd3ed2c7cc7
SSDEEP

98304:gmt2HMNzbl5vG6exEEj3um3jyNJdQ91UKr1D7kBRa7m:gmt2Hsbl5vMradQvtZvri

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit

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/4976-2-0x0000000005230000-0x0000000005B1B000-memory.dmp	family_glupteba
behavioral2/memory/4976-3-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4976-24-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4976-51-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/4976-53-0x0000000005230000-0x0000000005B1B000-memory.dmp	family_glupteba
behavioral2/memory/3096-63-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/3096-122-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/3096-130-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-153-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-210-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-213-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-216-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-219-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-222-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-225-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-228-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2000-231-0x0000000000400000-0x0000000002ED3000-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
1756	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2000	csrss.exe
4332	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\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
File created	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	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
File created	C:\Windows\rss\csrss.exe	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.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
2828	schtasks.exe
1064	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.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,-281 = "Central Europe Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.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,-721 = "Central Pacific Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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,-1021 = "Bangladesh Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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,-192 = "Mountain Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
908	powershell.exe
908	powershell.exe
4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3912	powershell.exe
3912	powershell.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
4168	powershell.exe
4168	powershell.exe
1380	powershell.exe
1380	powershell.exe
3584	powershell.exe
3584	powershell.exe
2160	powershell.exe
2160	powershell.exe
2516	powershell.exe
2516	powershell.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
2000	csrss.exe
2000	csrss.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
2000	csrss.exe
2000	csrss.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe
4332	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	908	powershell.exe
Token: SeDebugPrivilege	4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Token: SeImpersonatePrivilege	4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
Token: SeDebugPrivilege	3912	powershell.exe
Token: SeDebugPrivilege	4168	powershell.exe
Token: SeDebugPrivilege	1380	powershell.exe
Token: SeDebugPrivilege	3584	powershell.exe
Token: SeDebugPrivilege	2160	powershell.exe
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeSystemEnvironmentPrivilege	2000	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 908	4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	81
PID 4976 wrote to memory of 908	4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	81
PID 4976 wrote to memory of 908	4976	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	81
PID 3096 wrote to memory of 3912	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	86
PID 3096 wrote to memory of 3912	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	86
PID 3096 wrote to memory of 3912	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	86
PID 3096 wrote to memory of 4480	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	88
PID 3096 wrote to memory of 4480	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	88
PID 4480 wrote to memory of 1756	4480	cmd.exe	90
PID 4480 wrote to memory of 1756	4480	cmd.exe	90
PID 3096 wrote to memory of 4168	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	91
PID 3096 wrote to memory of 4168	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	91
PID 3096 wrote to memory of 4168	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	91
PID 3096 wrote to memory of 1380	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	93
PID 3096 wrote to memory of 1380	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	93
PID 3096 wrote to memory of 1380	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	93
PID 3096 wrote to memory of 2000	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	95
PID 3096 wrote to memory of 2000	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	95
PID 3096 wrote to memory of 2000	3096	6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe	95
PID 2000 wrote to memory of 3584	2000	csrss.exe	96
PID 2000 wrote to memory of 3584	2000	csrss.exe	96
PID 2000 wrote to memory of 3584	2000	csrss.exe	96
PID 2000 wrote to memory of 2160	2000	csrss.exe	102
PID 2000 wrote to memory of 2160	2000	csrss.exe	102
PID 2000 wrote to memory of 2160	2000	csrss.exe	102
PID 2000 wrote to memory of 2516	2000	csrss.exe	104
PID 2000 wrote to memory of 2516	2000	csrss.exe	104
PID 2000 wrote to memory of 2516	2000	csrss.exe	104
PID 2000 wrote to memory of 4332	2000	csrss.exe	106
PID 2000 wrote to memory of 4332	2000	csrss.exe	106

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\6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
"C:\Users\Admin\AppData\Local\Temp\6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:908
- C:\Users\Admin\AppData\Local\Temp\6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.exe
  "C:\Users\Admin\AppData\Local\Temp\6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e.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:3096
- - 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:3912
- - 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:4480
  - - 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:1756
- - 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:4168
- - 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:1380
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2000
  - - 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:3584
  - - 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:2828
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:580
  - - 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:2160
  - - 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:2516
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:4332
  - - 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:1064

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sveathi2.n3e.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
ef3a689145f49422c54d9fc58536d67b

SHA1
94f76dd2553837b66320dbeaebd2bb9ad961fbc4

SHA256
b3551f933ad1e47d04840174ad60c6a7c7d87ce37a63065a23a49974e1e745a0

SHA512
1b965f3bada1af25c2436348716e925541d36eaf969a6c2ca31cabc39ebd6c9a6cf78bf55c1e0dbed3eaa0eac7a9719e27046ea1394cad0a01d06e2885d83c67

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

Filesize
19KB

MD5
44a3a9d152da10cc572ae08c4d218a10

SHA1
da408eb5fb972c3e65209f586d8f249574bc8660

SHA256
22eb3572be59936fce304fb1cb9506243e45ddffd8a680db148114ad9de916a0

SHA512
9a4bb79f4f9cb1903ee3049ad447781cb8769669d3e3f256b2f9a0f8489fec61a351e28f42a39730dcf93f3b968899855aa837e71ce17b78d328085506fb7e8e

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

Filesize
19KB

MD5
3b0239a67b79b165b517da130b8a3e38

SHA1
2a5616d569420bfcb80f531bb67f55fd49c7b93d

SHA256
6f34f37384a4744d8cda95591b9788d99536eb1ae952e58a300ff5843a7cea03

SHA512
252b04d002a2fb6ddba67462ad22258ee3e68463794b216f093c7021e8e11b1593c950d0697e5382c2a823589079e78fa3bad179da8a798862385eff0d654aae

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

Filesize
19KB

MD5
e3d4843f8b54c0d7fbf5a4710de8bc6d

SHA1
dd6c683f67d6486a061837e7e38043a1ac3f5b19

SHA256
e80b5faddf3b1dfeaaab5583fa5fecb185efec62513b789bfb7fadcbc58e33ae

SHA512
0c4ec62a33d469660a1833e109b2718c393a3de9979d4b2c56903bcaf3333dcfbe06322992a2726befe570d5b08afd61712e69b37a53fb86ab4f6aeb6b574f3e

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

Filesize
19KB

MD5
6671d93f9e461eaff0504c32ba3fb28d

SHA1
6e18de861dcf459203983016fedba3275cc70b4a

SHA256
b22cf290d41cfa3002009f59ae8a9fdf634dfa133e7656ce4311f58f52b8551f

SHA512
efa52b3fa4f86cec66a10def44765339d97046aa1399cb34a8f44114341769aacb3b8c517358f958ab6e1d9976d741cebdb3ce185b49ef11f3e762e6efbe6864

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

Filesize
4.1MB

MD5
b068b5a5ee8be4de86f67b5c2b5bf5d5

SHA1
5e18f8587e2f0dcb60b7b8da2ba34b322dc3a101

SHA256
6cfa7bcedd6d520680771a1c26ace9e12c0d1756d0409353a1ee084d73e0b96e

SHA512
bcedd5ef88e873b4273b6d5938854655006866f8fdcfcea0f845c2ce7dc6582b1787a5f4b668ae9e7bc09c73d1e574dc2bfe5d46a24cd7b8d62e8dd3ed2c7cc7

Download Submit
memory/908-40-0x0000000007670000-0x000000000767A000-memory.dmp

Filesize
40KB

Download
memory/908-44-0x00000000076F0000-0x0000000007705000-memory.dmp

Filesize
84KB

Download
memory/908-10-0x0000000005A40000-0x0000000005AA6000-memory.dmp

Filesize
408KB

Download
memory/908-20-0x0000000005CF0000-0x0000000006047000-memory.dmp

Filesize
3.3MB

Download
memory/908-21-0x0000000006080000-0x000000000609E000-memory.dmp

Filesize
120KB

Download
memory/908-22-0x0000000006120000-0x000000000616C000-memory.dmp

Filesize
304KB

Download
memory/908-23-0x0000000006610000-0x0000000006656000-memory.dmp

Filesize
280KB

Download
memory/908-4-0x0000000004BC0000-0x0000000004BF6000-memory.dmp

Filesize
216KB

Download
memory/908-25-0x0000000007490000-0x00000000074C4000-memory.dmp

Filesize
208KB

Download
memory/908-26-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/908-27-0x0000000070580000-0x00000000708D7000-memory.dmp

Filesize
3.3MB

Download
memory/908-36-0x00000000074F0000-0x000000000750E000-memory.dmp

Filesize
120KB

Download
memory/908-37-0x0000000007510000-0x00000000075B4000-memory.dmp

Filesize
656KB

Download
memory/908-38-0x0000000007C80000-0x00000000082FA000-memory.dmp

Filesize
6.5MB

Download
memory/908-39-0x0000000007630000-0x000000000764A000-memory.dmp

Filesize
104KB

Download
memory/908-9-0x00000000052E0000-0x0000000005302000-memory.dmp

Filesize
136KB

Download
memory/908-41-0x0000000007780000-0x0000000007816000-memory.dmp

Filesize
600KB

Download
memory/908-42-0x00000000076A0000-0x00000000076B1000-memory.dmp

Filesize
68KB

Download
memory/908-43-0x00000000076E0000-0x00000000076EE000-memory.dmp

Filesize
56KB

Download
memory/908-11-0x0000000005B60000-0x0000000005BC6000-memory.dmp

Filesize
408KB

Download
memory/908-45-0x0000000007740000-0x000000000775A000-memory.dmp

Filesize
104KB

Download
memory/908-46-0x0000000007760000-0x0000000007768000-memory.dmp

Filesize
32KB

Download
memory/908-49-0x00000000742C0000-0x0000000074A71000-memory.dmp

Filesize
7.7MB

Download
memory/908-5-0x00000000742C0000-0x0000000074A71000-memory.dmp

Filesize
7.7MB

Download
memory/908-6-0x0000000004CE0000-0x0000000004CF0000-memory.dmp

Filesize
64KB

Download
memory/908-7-0x0000000004CE0000-0x0000000004CF0000-memory.dmp

Filesize
64KB

Download
memory/908-8-0x0000000005320000-0x000000000594A000-memory.dmp

Filesize
6.2MB

Download
memory/1380-113-0x0000000070780000-0x0000000070AD7000-memory.dmp

Filesize
3.3MB

Download
memory/1380-112-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/1380-110-0x00000000057F0000-0x0000000005B47000-memory.dmp

Filesize
3.3MB

Download
memory/2000-210-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-213-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-216-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-219-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-153-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-222-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-225-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-228-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2000-231-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2160-157-0x0000000005D00000-0x0000000006057000-memory.dmp

Filesize
3.3MB

Download
memory/2160-168-0x0000000070450000-0x000000007049C000-memory.dmp

Filesize
304KB

Download
memory/2160-181-0x0000000005C70000-0x0000000005C85000-memory.dmp

Filesize
84KB

Download
memory/2160-179-0x0000000007820000-0x0000000007831000-memory.dmp

Filesize
68KB

Download
memory/2160-178-0x0000000007490000-0x0000000007534000-memory.dmp

Filesize
656KB

Download
memory/2160-169-0x00000000706A0000-0x00000000709F7000-memory.dmp

Filesize
3.3MB

Download
memory/2160-167-0x0000000006230000-0x000000000627C000-memory.dmp

Filesize
304KB

Download
memory/2516-194-0x0000000070660000-0x00000000709B7000-memory.dmp

Filesize
3.3MB

Download
memory/2516-193-0x0000000070450000-0x000000007049C000-memory.dmp

Filesize
304KB

Download
memory/2516-191-0x0000000006120000-0x0000000006477000-memory.dmp

Filesize
3.3MB

Download
memory/3096-63-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/3096-122-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/3096-130-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/3584-142-0x0000000070780000-0x0000000070AD7000-memory.dmp

Filesize
3.3MB

Download
memory/3584-141-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/3912-65-0x0000000070760000-0x0000000070AB7000-memory.dmp

Filesize
3.3MB

Download
memory/3912-62-0x0000000005A90000-0x0000000005DE7000-memory.dmp

Filesize
3.3MB

Download
memory/3912-74-0x00000000072E0000-0x0000000007384000-memory.dmp

Filesize
656KB

Download
memory/3912-75-0x0000000007610000-0x0000000007621000-memory.dmp

Filesize
68KB

Download
memory/3912-64-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/3912-76-0x0000000007660000-0x0000000007675000-memory.dmp

Filesize
84KB

Download
memory/4168-89-0x00000000054C0000-0x0000000005817000-memory.dmp

Filesize
3.3MB

Download
memory/4168-91-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/4168-92-0x00000000706B0000-0x0000000070A07000-memory.dmp

Filesize
3.3MB

Download
memory/4976-1-0x0000000004E20000-0x0000000005224000-memory.dmp

Filesize
4.0MB

Download
memory/4976-53-0x0000000005230000-0x0000000005B1B000-memory.dmp

Filesize
8.9MB

Download
memory/4976-52-0x0000000004E20000-0x0000000005224000-memory.dmp

Filesize
4.0MB

Download
memory/4976-51-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4976-24-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4976-3-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/4976-2-0x0000000005230000-0x0000000005B1B000-memory.dmp

Filesize
8.9MB

Download