njrat | fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8a

General

Target

fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe
Size

23KB
MD5

6e6d2f25fe0c0749d169b526d5b04d30
SHA1

bdb9d5b480392c48974daede2d860c0e3f6f5bc8
SHA256

fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8a
SHA512

701e0513483e6c08d9f99e5d71d0dac60bbb76a8cee4164f1a3fceb3c6d05f97c68e05e81c8f5c33a9e401dc7dc6ccf25bc0761fc235a13e06bc15cc827c7138
SSDEEP

384:poWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI7:+7O89p2rRpcnuF

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

10.10.1.11:5552

Mutex

7657c14284185fbd3fb108b43c7467ba

Attributes

reg_key
7657c14284185fbd3fb108b43c7467ba
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

pid	Process
2764	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2100	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2288	fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"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

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.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

description	pid	Process
Token: SeDebugPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe
Token: 33	2100	server.exe
Token: SeIncBasePriorityPrivilege	2100	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2100	2288	fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe	30
PID 2288 wrote to memory of 2100	2288	fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe	30
PID 2288 wrote to memory of 2100	2288	fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe	30
PID 2288 wrote to memory of 2100	2288	fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe	30
PID 2100 wrote to memory of 2764	2100	server.exe	32
PID 2100 wrote to memory of 2764	2100	server.exe	32
PID 2100 wrote to memory of 2764	2100	server.exe	32
PID 2100 wrote to memory of 2764	2100	server.exe	32

C:\Users\Admin\AppData\Local\Temp\fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe
"C:\Users\Admin\AppData\Local\Temp\fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- 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:2100
- - 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:2764

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
6e6d2f25fe0c0749d169b526d5b04d30

SHA1
bdb9d5b480392c48974daede2d860c0e3f6f5bc8

SHA256
fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8a

SHA512
701e0513483e6c08d9f99e5d71d0dac60bbb76a8cee4164f1a3fceb3c6d05f97c68e05e81c8f5c33a9e401dc7dc6ccf25bc0761fc235a13e06bc15cc827c7138

Download Submit
memory/2100-12-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-10-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-13-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2288-0-0x00000000741C1000-0x00000000741C2000-memory.dmp

Filesize
4KB

Download
memory/2288-1-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2288-2-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2288-11-0x00000000741C0000-0x000000007476B000-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