njrat | 4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 19:38

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General

Target

4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Size

89KB
MD5

343079476b1636d4c4e56249f83f9187
SHA1

d24fdb34ba242b7116f6a3e81501e99090f15c70
SHA256

4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3
SHA512

ac5eb843ed6b06d1819d0d495ea2faeafda1456078c91b16f24aecc3f72718ebbf47687aaeabf1f7ef10b1a6b47a190e35b29d9bbe49d926ea1a3d2af09034c0
SSDEEP

384:tsqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZBiS+8tj9:Wf65K2Yf1jKRpcnuXdEgTK

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
2904	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1b08a9557635966a4afb29577a39bcd4.exe	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1b08a9557635966a4afb29577a39bcd4.exe	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1b08a9557635966a4afb29577a39bcd4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe\" .."	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1b08a9557635966a4afb29577a39bcd4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe\" .."	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.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	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: 33	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
Token: SeIncBasePriorityPrivilege	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2904	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe	85
PID 2000 wrote to memory of 2904	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe	85
PID 2000 wrote to memory of 2904	2000	4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe	85

C:\Users\Admin\AppData\Local\Temp\4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe
"C:\Users\Admin\AppData\Local\Temp\4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.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:2000
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe" "4a4dcb3d44b25875a661b16ee7d351a057b43921277b1f44a6b17354bb6936a3.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2904

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/2000-0-0x00000000751A2000-0x00000000751A3000-memory.dmp

Filesize
4KB

Download
memory/2000-1-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/2000-2-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/2000-4-0x00000000751A2000-0x00000000751A3000-memory.dmp

Filesize
4KB

Download
memory/2000-5-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download
memory/2000-6-0x00000000751A0000-0x0000000075751000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads