bf7081708a488f86fa769a6c5e35188ad2ceb35420b24d7c16917e44ddbe9f21

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	Picture24.JPG_www.facebook.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	Picture24.JPG_www.facebook.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	Picture24.JPG_www.facebook.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\c:\windows\mdm.exe = "c:\\windows\\mdm.exe:*:Enabled:Microsoft Firevall Engine"	Picture24.JPG_www.facebook.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

persistence privilege_escalation

Disable or Modify System Firewall

T1562.004

pid	Process
4436	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
720	mdm.exe

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1856-1-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/1856-2-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/1856-8-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-10-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-11-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-12-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-13-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-14-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-15-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-16-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-17-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-18-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-19-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-20-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-21-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-22-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-23-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-24-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-25-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-26-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-27-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/720-28-0x0000000000400000-0x00000000004A2000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Firevall Engine = "c:\\windows\\mdm.exe"	mdm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Firevall Engine = "c:\\windows\\mdm.exe"	mdm.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	\??\c:\windows\mdm.exe	Picture24.JPG_www.facebook.exe
File opened for modification	\??\c:\windows\mdm.exe	mdm.exe
File opened for modification	\??\c:\windows\mdm.exe	Picture24.JPG_www.facebook.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	Picture24.JPG_www.facebook.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mdm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
1856	Picture24.JPG_www.facebook.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe
720	mdm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	Picture24.JPG_www.facebook.exe
Token: SeDebugPrivilege	720	mdm.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 720	1856	Picture24.JPG_www.facebook.exe	82
PID 1856 wrote to memory of 720	1856	Picture24.JPG_www.facebook.exe	82
PID 1856 wrote to memory of 720	1856	Picture24.JPG_www.facebook.exe	82
PID 720 wrote to memory of 4436	720	mdm.exe	83
PID 720 wrote to memory of 4436	720	mdm.exe	83
PID 720 wrote to memory of 4436	720	mdm.exe	83

C:\Users\Admin\AppData\Local\Temp\Picture24.JPG_www.facebook.exe
"C:\Users\Admin\AppData\Local\Temp\Picture24.JPG_www.facebook.exe"
1⤵
- Modifies firewall policy service
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1856
- \??\c:\windows\mdm.exe
  c:\windows\mdm.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:720
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "c:\windows\mdm.exe" "MSN Messenger" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery