njrat | 834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72a

General

Target

834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe
Size

23KB
MD5

5d67b6be356f24350504eff9211a6720
SHA1

d222045591c9626151d42c34c1587d736c51c934
SHA256

834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72a
SHA512

784fa8337100edff0778ea152f311cf6e875c4da26a402528b161a40330c02ec01b5e028931fd8b8fe187920add3a00659d806a25b7e89e99de26b25db9338cb
SSDEEP

384:UslUlEvOEJ8xWwYJOMiOBZEdj1567gtwi5HhbQmRvR6JZlbw8hqIusZzZWs:deEvwIlLMRpcnuY

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

192.168.1.5:5552

Mutex

54c3bd7fd81a24dad0a87512e97f2c1f

Attributes

reg_key
54c3bd7fd81a24dad0a87512e97f2c1f
splitter
|'|'|

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

Processes:

netsh.exe

pid process

2740 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2056 server.exe
Loads dropped DLL 1 IoCs

Processes:

834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe

pid process

1964 834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe

pid	process
2740	netsh.exe

pid	process
2056	server.exe

pid	process
1964	834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\54c3bd7fd81a24dad0a87512e97f2c1f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\54c3bd7fd81a24dad0a87512e97f2c1f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

Processes:

netsh.exe

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 3 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

Processes:

834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe
Token: 33	2056	server.exe
Token: SeIncBasePriorityPrivilege	2056	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exeserver.exe

description	pid	process	target process
PID 1964 wrote to memory of 2056	1964	834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe	server.exe
PID 1964 wrote to memory of 2056	1964	834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe	server.exe
PID 1964 wrote to memory of 2056	1964	834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe	server.exe
PID 1964 wrote to memory of 2056	1964	834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe	server.exe
PID 2056 wrote to memory of 2740	2056	server.exe	netsh.exe
PID 2056 wrote to memory of 2740	2056	server.exe	netsh.exe
PID 2056 wrote to memory of 2740	2056	server.exe	netsh.exe
PID 2056 wrote to memory of 2740	2056	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe
"C:\Users\Admin\AppData\Local\Temp\834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72aN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2740

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 Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
5d67b6be356f24350504eff9211a6720

SHA1
d222045591c9626151d42c34c1587d736c51c934

SHA256
834124ffbe093719c4db0673a586fc1223baab8a45bc30112e00156243f5c72a

SHA512
784fa8337100edff0778ea152f311cf6e875c4da26a402528b161a40330c02ec01b5e028931fd8b8fe187920add3a00659d806a25b7e89e99de26b25db9338cb

Download Submit
memory/1964-0-0x00000000740A1000-0x00000000740A2000-memory.dmp

Filesize
4KB

Download
memory/1964-1-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/1964-2-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/1964-10-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2056-11-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2056-12-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2056-13-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads