glupteba | 6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2023, 12:47

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General

Target

06387099.exe
Size

4.2MB
MD5

46d01f26621a1237714dfcede03eb44b
SHA1

632930b0ba30671d723bb4b9b1cf6f39b9887cf0
SHA256

6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6
SHA512

f99684c81423e6e60cd8ac72b878f9a05b6657f9182f8ac06b09e237e71d5c8f148f00941dd79da81062259de79ee6cc35796795fd86c410baffe3f50ed2fe42
SSDEEP

98304:W3eEa4Yo0sQ6JN6ulY3ERiWsgeuupMr4s5fhmp4R+mu9a7SPp:FPCX2iiWtSpLE7k

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/4624-134-0x0000000002E10000-0x00000000036FB000-memory.dmp	family_glupteba
behavioral2/memory/4624-154-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/4624-204-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/4200-231-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/4200-265-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-268-0x0000000003400000-0x0000000003CEB000-memory.dmp	family_glupteba
behavioral2/memory/1324-321-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-354-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-356-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-358-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-360-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-362-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-364-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-366-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-368-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-370-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba
behavioral2/memory/1324-372-0x0000000000400000-0x0000000000D1B000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4240	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
1324	csrss.exe
1780	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	06387099.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

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

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

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

rootkit evasion

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

Drops file in System32 directory 7 IoCs

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

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	06387099.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	06387099.exe
File created	C:\Windows\rss\csrss.exe	06387099.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

T1053

pid	Process
5084	schtasks.exe
2300	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,-601 = "Taipei Daylight Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	06387099.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time"	06387099.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,-292 = "Central European Standard Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	06387099.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,-2392 = "Aleutian Standard Time"	06387099.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	06387099.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	06387099.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5016	powershell.exe
5016	powershell.exe
4624	06387099.exe
4624	06387099.exe
4492	powershell.exe
4492	powershell.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
4200	06387099.exe
444	powershell.exe
444	powershell.exe
1420	powershell.exe
1420	powershell.exe
4668	powershell.exe
4668	powershell.exe
3000	powershell.exe
3000	powershell.exe
1624	powershell.exe
1624	powershell.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1324	csrss.exe
1324	csrss.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1324	csrss.exe
1324	csrss.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe
1780	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeDebugPrivilege	4624	06387099.exe
Token: SeImpersonatePrivilege	4624	06387099.exe
Token: SeDebugPrivilege	4492	powershell.exe
Token: SeDebugPrivilege	444	powershell.exe
Token: SeDebugPrivilege	1420	powershell.exe
Token: SeDebugPrivilege	4668	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	1624	powershell.exe
Token: SeSystemEnvironmentPrivilege	1324	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 5016	4624	06387099.exe	85
PID 4624 wrote to memory of 5016	4624	06387099.exe	85
PID 4624 wrote to memory of 5016	4624	06387099.exe	85
PID 4200 wrote to memory of 4492	4200	06387099.exe	93
PID 4200 wrote to memory of 4492	4200	06387099.exe	93
PID 4200 wrote to memory of 4492	4200	06387099.exe	93
PID 4200 wrote to memory of 828	4200	06387099.exe	97
PID 4200 wrote to memory of 828	4200	06387099.exe	97
PID 828 wrote to memory of 4240	828	cmd.exe	99
PID 828 wrote to memory of 4240	828	cmd.exe	99
PID 4200 wrote to memory of 444	4200	06387099.exe	100
PID 4200 wrote to memory of 444	4200	06387099.exe	100
PID 4200 wrote to memory of 444	4200	06387099.exe	100
PID 4200 wrote to memory of 1420	4200	06387099.exe	102
PID 4200 wrote to memory of 1420	4200	06387099.exe	102
PID 4200 wrote to memory of 1420	4200	06387099.exe	102
PID 4200 wrote to memory of 1324	4200	06387099.exe	105
PID 4200 wrote to memory of 1324	4200	06387099.exe	105
PID 4200 wrote to memory of 1324	4200	06387099.exe	105
PID 1324 wrote to memory of 4668	1324	csrss.exe	106
PID 1324 wrote to memory of 4668	1324	csrss.exe	106
PID 1324 wrote to memory of 4668	1324	csrss.exe	106
PID 1324 wrote to memory of 3000	1324	csrss.exe	111
PID 1324 wrote to memory of 3000	1324	csrss.exe	111
PID 1324 wrote to memory of 3000	1324	csrss.exe	111
PID 1324 wrote to memory of 1624	1324	csrss.exe	114
PID 1324 wrote to memory of 1624	1324	csrss.exe	114
PID 1324 wrote to memory of 1624	1324	csrss.exe	114
PID 1324 wrote to memory of 1780	1324	csrss.exe	116
PID 1324 wrote to memory of 1780	1324	csrss.exe	116

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\06387099.exe
"C:\Users\Admin\AppData\Local\Temp\06387099.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5016
- C:\Users\Admin\AppData\Local\Temp\06387099.exe
  "C:\Users\Admin\AppData\Local\Temp\06387099.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:4200
- - 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:4492
- - 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:828
  - - 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:4240
- - 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:444
- - 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:1420
- - 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:1324
  - - 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:4668
  - - 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:5084
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2632
  - - 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:3000
  - - 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:1624
  - - 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:1780
  - - 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:2300

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

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_ree0qbe3.2f0.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:\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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
19KB

MD5
b3065a232db812369cda96bba2431e85

SHA1
9593020b59e7b4eeb4a7ef83baf29dc0ae03f6a3

SHA256
c42bdb8dd0033b6c49f16926233b10b4bd202ec6802b2551f82f31457cd11d52

SHA512
6fba9208cfb32e7fff770a7c9cda419ca0a4883af4d0f81019782f31ea49d480efaf572fa8ea7895259e5838c1dc09e3d4afb40c312563c743cdcdb60345a907

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

Filesize
19KB

MD5
438cc73284c054be972b75faab639e45

SHA1
b6ccad237c8196f53199aac9b7d3f04d24865a50

SHA256
29e33f60bfbe7a9c069b682c597646644aa7f4a0636de2c0cdae0c3c38b9d3c9

SHA512
337cb3664b9070e40f172fa89537ccaef40eaabd5969367511f333995427b12eda67aa4dca04bc0ea44e55c7d44b818c9fd78eeadaf47674d0c5ff2e713ee62d

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

Filesize
19KB

MD5
1bda9205d31acbd9ddec13b4738149e8

SHA1
4d877dd8dedb40a02a7641bfc3fb07f7f8f946ec

SHA256
0a7db1cd0c0eacba2a79b5247c3df043f7bbe6521d38212471a38ad9fbbdd7f6

SHA512
36ad0c7f4c4023199e85ea4c460863fade307609c54476cff7e93d1ea2df946340877d8d204c7131ea97b30e51816b138d1308cb34f79361432ce89b6c1be5da

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

Filesize
19KB

MD5
dc24f903a4dab21161c50578b5972ed9

SHA1
0a08c17b0c12e639c5ed50c47dc914709d29275e

SHA256
5608d0ef51d8af29867e6d766142dd7e2970e5458643c9821a6001cf92d198ee

SHA512
3104090059968dc68635f0ab96c777bcd1253941661680f7f83db9d7fd65e4161a3ca86e57c7d1baa4cf4e63295a5efa5a20c1d3d3d44a19fbc75469599f3a21

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

Filesize
19KB

MD5
35d4edb057fc4178e7c1d9881c5293f9

SHA1
995a5df5583306c4ac23608a63a6cdce06a225dc

SHA256
24cc7b05cd087ac9df1ce8c5fa4e034b396a9beb63f1beeb8baa91ea99493b5b

SHA512
1ac87d7584a7260306e6f576d6efd5497c178c197492dc14fa5de0eff5afe047b124a098a837bce7587a7cf9965a0cf5e2ba427211132bba03210bf53a159f2e

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

Filesize
4.2MB

MD5
46d01f26621a1237714dfcede03eb44b

SHA1
632930b0ba30671d723bb4b9b1cf6f39b9887cf0

SHA256
6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6

SHA512
f99684c81423e6e60cd8ac72b878f9a05b6657f9182f8ac06b09e237e71d5c8f148f00941dd79da81062259de79ee6cc35796795fd86c410baffe3f50ed2fe42

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

Filesize
4.2MB

MD5
46d01f26621a1237714dfcede03eb44b

SHA1
632930b0ba30671d723bb4b9b1cf6f39b9887cf0

SHA256
6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6

SHA512
f99684c81423e6e60cd8ac72b878f9a05b6657f9182f8ac06b09e237e71d5c8f148f00941dd79da81062259de79ee6cc35796795fd86c410baffe3f50ed2fe42

Download Submit
memory/444-218-0x0000000004820000-0x0000000004830000-memory.dmp

Filesize
64KB

Download
memory/444-219-0x0000000004820000-0x0000000004830000-memory.dmp

Filesize
64KB

Download
memory/444-221-0x0000000070FC0000-0x0000000071314000-memory.dmp

Filesize
3.3MB

Download
memory/444-220-0x0000000070840000-0x000000007088C000-memory.dmp

Filesize
304KB

Download
memory/444-232-0x0000000004820000-0x0000000004830000-memory.dmp

Filesize
64KB

Download
memory/444-233-0x000000007F780000-0x000000007F790000-memory.dmp

Filesize
64KB

Download
memory/1324-356-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-360-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-372-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-321-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-370-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-368-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-268-0x0000000003400000-0x0000000003CEB000-memory.dmp

Filesize
8.9MB

Download
memory/1324-366-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-354-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-364-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-362-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1324-358-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/1420-247-0x0000000004A20000-0x0000000004A30000-memory.dmp

Filesize
64KB

Download
memory/1420-249-0x0000000070840000-0x000000007088C000-memory.dmp

Filesize
304KB

Download
memory/1420-236-0x0000000004A20000-0x0000000004A30000-memory.dmp

Filesize
64KB

Download
memory/1420-235-0x0000000004A20000-0x0000000004A30000-memory.dmp

Filesize
64KB

Download
memory/1420-248-0x000000007FC40000-0x000000007FC50000-memory.dmp

Filesize
64KB

Download
memory/1420-250-0x0000000070FC0000-0x0000000071314000-memory.dmp

Filesize
3.3MB

Download
memory/1624-333-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

Filesize
64KB

Download
memory/1624-346-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

Filesize
64KB

Download
memory/1624-336-0x0000000070910000-0x0000000070C64000-memory.dmp

Filesize
3.3MB

Download
memory/1624-335-0x0000000070760000-0x00000000707AC000-memory.dmp

Filesize
304KB

Download
memory/1624-334-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

Filesize
64KB

Download
memory/3000-309-0x0000000070760000-0x00000000707AC000-memory.dmp

Filesize
304KB

Download
memory/3000-311-0x00000000708E0000-0x0000000070C34000-memory.dmp

Filesize
3.3MB

Download
memory/3000-310-0x000000007FA80000-0x000000007FA90000-memory.dmp

Filesize
64KB

Download
memory/3000-305-0x0000000002210000-0x0000000002220000-memory.dmp

Filesize
64KB

Download
memory/3000-304-0x0000000002210000-0x0000000002220000-memory.dmp

Filesize
64KB

Download
memory/3000-308-0x0000000002210000-0x0000000002220000-memory.dmp

Filesize
64KB

Download
memory/4200-231-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/4200-265-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/4492-191-0x0000000070840000-0x000000007088C000-memory.dmp

Filesize
304KB

Download
memory/4492-202-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/4492-189-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/4492-190-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/4492-192-0x00000000709C0000-0x0000000070D14000-memory.dmp

Filesize
3.3MB

Download
memory/4492-203-0x000000007FC60000-0x000000007FC70000-memory.dmp

Filesize
64KB

Download
memory/4624-134-0x0000000002E10000-0x00000000036FB000-memory.dmp

Filesize
8.9MB

Download
memory/4624-204-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/4624-154-0x0000000000400000-0x0000000000D1B000-memory.dmp

Filesize
9.1MB

Download
memory/4668-280-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/4668-293-0x000000007FA10000-0x000000007FA20000-memory.dmp

Filesize
64KB

Download
memory/4668-292-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/4668-282-0x0000000070FE0000-0x0000000071334000-memory.dmp

Filesize
3.3MB

Download
memory/4668-281-0x0000000070840000-0x000000007088C000-memory.dmp

Filesize
304KB

Download
memory/4668-279-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/5016-174-0x0000000007B30000-0x0000000007B3E000-memory.dmp

Filesize
56KB

Download
memory/5016-156-0x0000000007E50000-0x00000000084CA000-memory.dmp

Filesize
6.5MB

Download
memory/5016-173-0x0000000007B90000-0x0000000007C26000-memory.dmp

Filesize
600KB

Download
memory/5016-175-0x0000000007C30000-0x0000000007C4A000-memory.dmp

Filesize
104KB

Download
memory/5016-171-0x0000000007AD0000-0x0000000007ADA000-memory.dmp

Filesize
40KB

Download
memory/5016-170-0x0000000007980000-0x000000000799E000-memory.dmp

Filesize
120KB

Download
memory/5016-160-0x00000000709C0000-0x0000000070D14000-memory.dmp

Filesize
3.3MB

Download
memory/5016-159-0x0000000070840000-0x000000007088C000-memory.dmp

Filesize
304KB

Download
memory/5016-158-0x00000000079A0000-0x00000000079D2000-memory.dmp

Filesize
200KB

Download
memory/5016-157-0x00000000077F0000-0x000000000780A000-memory.dmp

Filesize
104KB

Download
memory/5016-155-0x0000000002E30000-0x0000000002E40000-memory.dmp

Filesize
64KB

Download
memory/5016-172-0x000000007FC40000-0x000000007FC50000-memory.dmp

Filesize
64KB

Download
memory/5016-176-0x0000000007B70000-0x0000000007B78000-memory.dmp

Filesize
32KB

Download
memory/5016-153-0x0000000007750000-0x00000000077C6000-memory.dmp

Filesize
472KB

Download
memory/5016-152-0x0000000006980000-0x00000000069C4000-memory.dmp

Filesize
272KB

Download
memory/5016-151-0x0000000006420000-0x000000000643E000-memory.dmp

Filesize
120KB

Download
memory/5016-141-0x0000000005C90000-0x0000000005CF6000-memory.dmp

Filesize
408KB

Download
memory/5016-140-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/5016-139-0x0000000005B80000-0x0000000005BA2000-memory.dmp

Filesize
136KB

Download
memory/5016-138-0x0000000002E30000-0x0000000002E40000-memory.dmp

Filesize
64KB

Download
memory/5016-137-0x0000000002E30000-0x0000000002E40000-memory.dmp

Filesize
64KB

Download
memory/5016-136-0x0000000005500000-0x0000000005B28000-memory.dmp

Filesize
6.2MB

Download
memory/5016-135-0x0000000004E90000-0x0000000004EC6000-memory.dmp

Filesize
216KB

Download