njrat | e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8

General

Target

e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe
Size

23KB
MD5

f44131ee5e3bfd345e3304402d8fa580
SHA1

c82a4b3946fc85944e7e00f53130af80bfdfd17a
SHA256

e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8
SHA512

7b76bd361451d7e409f031e6f9f2495cd1a5822376d1a37cdcc968e13b764a018702a556ff3acc920b20a4a6768d0d244233e864bbeb8f360d3d5e4a928eab76
SSDEEP

384:LnoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI1:s7O89p2rRpcnuH

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

Processes:

netsh.exe

pid process

2196 netsh.exe
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2452 server.exe
Loads dropped DLL 1 IoCs

Processes:

e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe

pid process

1656 e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe

pid	process
2196	netsh.exe

pid	process
2452	server.exe

pid	process
1656	e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.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-1-5-21-2039016743-699959520-214465309-1000\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

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:

e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.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 35 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe
Token: 33	2452	server.exe
Token: SeIncBasePriorityPrivilege	2452	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exeserver.exe

description	pid	process	target process
PID 1656 wrote to memory of 2452	1656	e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe	server.exe
PID 1656 wrote to memory of 2452	1656	e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe	server.exe
PID 1656 wrote to memory of 2452	1656	e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe	server.exe
PID 1656 wrote to memory of 2452	1656	e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe	server.exe
PID 2452 wrote to memory of 2196	2452	server.exe	netsh.exe
PID 2452 wrote to memory of 2196	2452	server.exe	netsh.exe
PID 2452 wrote to memory of 2196	2452	server.exe	netsh.exe
PID 2452 wrote to memory of 2196	2452	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe
"C:\Users\Admin\AppData\Local\Temp\e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- 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:2452
- - 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:2196

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
23KB

MD5
f44131ee5e3bfd345e3304402d8fa580

SHA1
c82a4b3946fc85944e7e00f53130af80bfdfd17a

SHA256
e925e0255230d3acffda666b387a3d65da885b792c4d1d71d92fe9ea2127c3d8

SHA512
7b76bd361451d7e409f031e6f9f2495cd1a5822376d1a37cdcc968e13b764a018702a556ff3acc920b20a4a6768d0d244233e864bbeb8f360d3d5e4a928eab76

Download Submit
memory/1656-0-0x0000000074A41000-0x0000000074A42000-memory.dmp

Filesize
4KB

Download
memory/1656-1-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/1656-2-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/1656-10-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2452-11-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2452-12-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2452-13-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads