njrat | a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-10-2024 11:07

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General

Target

a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Size

31KB
MD5

f1ffbad1441a7f3368c551402e04fa03
SHA1

73a33bf9e4a2cde9a8468a2eed78f9eae3bb5e54
SHA256

a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1
SHA512

0b4b7a93d8c7711abae6f5f271f566d0c3a0631749cd7e1050be233131f4d9f9e3ccecfd94ab3c17ee12d7bbad8969f0b5fe6a9179c0bcf61f201d99c504f052
SSDEEP

768:bis2ZOVvZVYzxDCPIAT+vCQEpvywHQmIDUu0tizgj:c+6qJQ6DQVk5j

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2932	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4a511581dfdc310e4c48feb89e0695f4.exe	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4a511581dfdc310e4c48feb89e0695f4.exe	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\4a511581dfdc310e4c48feb89e0695f4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe\" .."	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\4a511581dfdc310e4c48feb89e0695f4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe\" .."	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.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.

persistence privilege_escalation

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 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	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: 33	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
Token: SeIncBasePriorityPrivilege	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2932	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe	28
PID 2408 wrote to memory of 2932	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe	28
PID 2408 wrote to memory of 2932	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe	28
PID 2408 wrote to memory of 2932	2408	a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe	28

C:\Users\Admin\AppData\Local\Temp\a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe
"C:\Users\Admin\AppData\Local\Temp\a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe" "a2f3108c3c2c32f1b9ae75f694d1ee15a2647b2ce3d65f6df9bccaf426fb7af1.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2932

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

T1543.003

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

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2408-0-0x0000000074D71000-0x0000000074D72000-memory.dmp

Filesize
4KB

Download
memory/2408-1-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-2-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-4-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-5-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads