30dd8fddc1acfe06215bb2a15087e5e959f5ab52ff314fc993110a7446a5e723

General

Target
Server.exe
Size 43KB
Sample260913-x3662ssdpg
SHA256 30dd8fddc1acfe06215bb2a15087e5e959f5ab52ff314fc993110a7446a5e723
MD5 f855e48e2f641f13958d548b5a0b832e
SHA1 0089a19fef74b0095a1e72fa6cd1cf04c0313978
SHA512 315fe6212864fbe8564837f57f2f7ed4c1c4ca64e0a4097b4e9ec7125abdce6ad0822e6a4b7b145ed4c2f8b6faa749f308c759fb68a2aa344ab9f7dc77a426a1
SSDEEP 768:BGNNT8uX29ZSYg6D0rK9GTW2Es5U1v6HatjHX8qvtG1WVIL19x2NPUzKHCCjPka0:E6GvEmaxTitj2xHCCrk
TLSH
T13F13D78F63940B22C27CABB94552E71957F1B3871D67C39D0CEC88DA1F7AB04998B1D2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 2 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1840	netsh.exe
1884	netsh.exe

Creates a file in the Startup directory 1 TTPs 3 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bead739c11b6815884fb1a13a48ced96.exe	Server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bead739c11b6815884fb1a13a48ced96.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bead739c11b6815884fb1a13a48ced96.exe	Server.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\bead739c11b6815884fb1a13a48ced96 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\bead739c11b6815884fb1a13a48ced96 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\bead739c11b6815884fb1a13a48ced96 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\bead739c11b6815884fb1a13a48ced96 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

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

persistence privilege_escalation

Netsh Helper DLL

T1546.007

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

System Location Discovery: System Language Discovery 1 TTPs 4 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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
3420	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe
5476	Server.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5476	Server.exe
Token: SeDebugPrivilege	3420	Server.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5476 wrote to memory of 1840	5476	Server.exe	87
PID 3420 wrote to memory of 1884	3420	Server.exe	91

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5476
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1840

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe" ..
1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1884