njrat | 6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876

General

Target

6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe
Size

23KB
MD5

fcd6af9d5fdd9b8e9689eb3c05196ac0
SHA1

c14707db331ad65a2d83858722c1df00573e0be7
SHA256

6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876
SHA512

3663602d0c8ab435ba18bfaf1b59be92a4aa65efe9cbcf1b03d47367d1bcb3e2639cf1c991dffbd7e67a63dac0e9669f2b69fa189343ba081f7cadbf0c045292
SSDEEP

384:joWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZII:c7O89p2rRpcnu+

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
2820	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1636	server.exe

Loads dropped DLL 1 IoCs

pid	Process
1848	6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.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-1-5-21-3290804112-2823094203-3137964600-1000\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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe
Token: 33	1636	server.exe
Token: SeIncBasePriorityPrivilege	1636	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 1636	1848	6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe	31
PID 1848 wrote to memory of 1636	1848	6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe	31
PID 1848 wrote to memory of 1636	1848	6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe	31
PID 1848 wrote to memory of 1636	1848	6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe	31
PID 1636 wrote to memory of 2820	1636	server.exe	32
PID 1636 wrote to memory of 2820	1636	server.exe	32
PID 1636 wrote to memory of 2820	1636	server.exe	32
PID 1636 wrote to memory of 2820	1636	server.exe	32

C:\Users\Admin\AppData\Local\Temp\6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe
"C:\Users\Admin\AppData\Local\Temp\6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1848
- 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:1636
- - 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:2820

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
fcd6af9d5fdd9b8e9689eb3c05196ac0

SHA1
c14707db331ad65a2d83858722c1df00573e0be7

SHA256
6746ac8ca9e6cc7a24912bc6f0e2b12461410a68f67a93be7b86701f0d132876

SHA512
3663602d0c8ab435ba18bfaf1b59be92a4aa65efe9cbcf1b03d47367d1bcb3e2639cf1c991dffbd7e67a63dac0e9669f2b69fa189343ba081f7cadbf0c045292

Download Submit
memory/1636-10-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/1636-11-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/1636-13-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/1636-14-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/1848-0-0x0000000074D31000-0x0000000074D32000-memory.dmp

Filesize
4KB

Download
memory/1848-1-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/1848-2-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/1848-12-0x0000000074D30000-0x00000000752DB000-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