sality | 21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4ba

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Sality
Sality is backdoor written in C++, first discovered in 2003.
backdoor sality
Sality family
sality

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\EXPLORER.EXE	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
File opened for modification	C:\Windows\SysWOW64\wsctf.exe	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/840-9-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-24-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-23-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-8-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-7-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-11-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-3-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-10-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-4-0x00000000025E0000-0x000000000366E000-memory.dmp	upx
behavioral1/memory/840-28-0x00000000025E0000-0x000000000366E000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SYSTEM.INI	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXPLORER.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 1232	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	18
PID 840 wrote to memory of 1320	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	19
PID 840 wrote to memory of 1360	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	20
PID 840 wrote to memory of 928	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	22
PID 840 wrote to memory of 2720	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	29
PID 840 wrote to memory of 2720	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	29
PID 840 wrote to memory of 2720	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	29
PID 840 wrote to memory of 2720	840	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe	29

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1232

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1320

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1360
- C:\Users\Admin\AppData\Local\Temp\21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe
  "C:\Users\Admin\AppData\Local\Temp\21c5c6bf347ecfa9b6e7469b438391866bfefbfc3425aca72e7cbbf8cf9ff4baN.exe"
  2⤵
  - Modifies firewall policy service
  - UAC bypass
  - Windows security bypass
  - Windows security modification
  - Checks whether UAC is enabled
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:840
- - C:\Windows\SysWOW64\EXPLORER.EXE
    C:\Windows\system32\EXPLORER.EXE
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2720

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

4

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery