njrat | a5c9fcb35fcae9abf9e18c9b631d981ead63255e28efc0386e72ec004a0b6a3c

General

Target

sample.exe
Size

23KB
MD5

aec3f2c8eb5674cedddcdd429d1f3678
SHA1

f336ab3defc654d191aa4ffa3ea935ab2c2a04d5
SHA256

cc07689332bdcc48ac8025ae968ad3ac4923ed51460c76b5aa78c1af2a03a6b1
SHA512

50a46955aee69aa1b759cc603533f40e43d0d2d22b46e0a61c358675ada5ac684c4f43ce2d708c37032a57f6e790922f90b8e06da93417192044008f1e78e58c
SSDEEP

384:RweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZhRk:GLq411eRpcnun

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat
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
4384	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\032c6e346b739748e572e06648200854.exe	sample.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\032c6e346b739748e572e06648200854.exe	sample.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\032c6e346b739748e572e06648200854 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sample.exe\" .."	sample.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\032c6e346b739748e572e06648200854 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sample.exe\" .."	sample.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	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe
Token: 33	3076	sample.exe
Token: SeIncBasePriorityPrivilege	3076	sample.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3076 wrote to memory of 4384	3076	sample.exe	84
PID 3076 wrote to memory of 4384	3076	sample.exe	84
PID 3076 wrote to memory of 4384	3076	sample.exe	84

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.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:3076
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\sample.exe" "sample.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:4384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3076-0-0x0000000074F82000-0x0000000074F83000-memory.dmp

Filesize
4KB

Download
memory/3076-1-0x0000000074F80000-0x0000000075531000-memory.dmp

Filesize
5.7MB

Download
memory/3076-2-0x0000000074F80000-0x0000000075531000-memory.dmp

Filesize
5.7MB

Download
memory/3076-4-0x0000000074F82000-0x0000000074F83000-memory.dmp

Filesize
4KB

Download
memory/3076-5-0x0000000074F80000-0x0000000075531000-memory.dmp

Filesize
5.7MB

Download
memory/3076-6-0x0000000074F80000-0x0000000075531000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads