njrat | e2c457f18c1063a235f962572ee6f6d49ddfbeba92599470b94b5fa2c3c237e1

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 10:46

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General

Target

4e5a132f843257037445628396c656b9.exe
Size

23KB
MD5

4e5a132f843257037445628396c656b9
SHA1

378c17d0f6ed512dbe5a43cd565549a80808bd62
SHA256

e2c457f18c1063a235f962572ee6f6d49ddfbeba92599470b94b5fa2c3c237e1
SHA512

8252a3a38a0fe038ba06830d3c703ea93828ebca045b4f465669798cef515910239eb16e9c36b4a7ab114ac15fbc7538a92b31ff578f4cc6f7635e7fc24d6d9c
SSDEEP

384:Vk8aSyS9gB3Y1KIay2X8cLZI6XgxsGJVPpmRvR6JZlbw8hqIusZzZIo8:N589tXvRpcnur

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
1044	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09df2bd777d1a884c3a89c8a9ba5e4a2.exe	4e5a132f843257037445628396c656b9.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09df2bd777d1a884c3a89c8a9ba5e4a2.exe	4e5a132f843257037445628396c656b9.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\09df2bd777d1a884c3a89c8a9ba5e4a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4e5a132f843257037445628396c656b9.exe\" .."	4e5a132f843257037445628396c656b9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\09df2bd777d1a884c3a89c8a9ba5e4a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4e5a132f843257037445628396c656b9.exe\" .."	4e5a132f843257037445628396c656b9.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	4e5a132f843257037445628396c656b9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe
Token: 33	2080	4e5a132f843257037445628396c656b9.exe
Token: SeIncBasePriorityPrivilege	2080	4e5a132f843257037445628396c656b9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 1044	2080	4e5a132f843257037445628396c656b9.exe	30
PID 2080 wrote to memory of 1044	2080	4e5a132f843257037445628396c656b9.exe	30
PID 2080 wrote to memory of 1044	2080	4e5a132f843257037445628396c656b9.exe	30
PID 2080 wrote to memory of 1044	2080	4e5a132f843257037445628396c656b9.exe	30

C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe
"C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.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:2080
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\4e5a132f843257037445628396c656b9.exe" "4e5a132f843257037445628396c656b9.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1044

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/2080-0-0x0000000074D91000-0x0000000074D92000-memory.dmp

Filesize
4KB

Download
memory/2080-1-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2080-2-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2080-4-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download
memory/2080-5-0x0000000074D90000-0x000000007533B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads