njrat | a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5f

General

Target

a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe
Size

23KB
MD5

51f1da1b1a51abad656cb855bf0a0ce0
SHA1

fa8044c6f460c063bd0579b48fdd95cf132d0d0a
SHA256

a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5f
SHA512

4942822a1c711bf73ddd6fa856e32f45af6f3767f5e1b74e9ff2cd6e650d546aab3313f85f50d966f30a6b37f19da4e678d12ffc627be8e4d2c8d726bafec1a2
SSDEEP

384:uoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI0:h7O89p2rRpcnuS

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
2144	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	server.exe

Loads dropped DLL 1 IoCs

pid	Process
1084	a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.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-1-5-21-2703099537-420551529-3771253338-1000\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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.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	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe
Token: 33	2788	server.exe
Token: SeIncBasePriorityPrivilege	2788	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 2788	1084	a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe	30
PID 1084 wrote to memory of 2788	1084	a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe	30
PID 1084 wrote to memory of 2788	1084	a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe	30
PID 1084 wrote to memory of 2788	1084	a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe	30
PID 2788 wrote to memory of 2144	2788	server.exe	31
PID 2788 wrote to memory of 2144	2788	server.exe	31
PID 2788 wrote to memory of 2144	2788	server.exe	31
PID 2788 wrote to memory of 2144	2788	server.exe	31

C:\Users\Admin\AppData\Local\Temp\a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe
"C:\Users\Admin\AppData\Local\Temp\a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5fN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1084
- 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:2788
- - 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:2144

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
51f1da1b1a51abad656cb855bf0a0ce0

SHA1
fa8044c6f460c063bd0579b48fdd95cf132d0d0a

SHA256
a96f0eb27522fe1d658471240d4fda9506efd7cf27d35bb6ed9a6668ecf6af5f

SHA512
4942822a1c711bf73ddd6fa856e32f45af6f3767f5e1b74e9ff2cd6e650d546aab3313f85f50d966f30a6b37f19da4e678d12ffc627be8e4d2c8d726bafec1a2

Download Submit
memory/1084-0-0x0000000074491000-0x0000000074492000-memory.dmp

Filesize
4KB

Download
memory/1084-1-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/1084-2-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/1084-10-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-12-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-11-0x0000000074490000-0x0000000074A3B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-13-0x0000000074490000-0x0000000074A3B000-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