njrat | 798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99

General

Target

798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe
Size

23KB
MD5

503e4417f6a89a55da71cc205c19efa0
SHA1

f6cb3ba49e5fd3ae4900948bc40e63cf8962ba7b
SHA256

798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99
SHA512

c0f028cc38faf8035488cba73475d5f2b037f49c0a11e889953ab74ee97a8b2d9a63f03bda74efaec39a9d492188e24903c8ffb4eede5ac80843119c44dc7600
SSDEEP

384:YoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIr:H7O89p2rRpcnuh

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
2412	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe

Executes dropped EXE 1 IoCs

pid	Process
2064	server.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-1-5-21-2878641211-696417878-3864914810-1000\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe
Token: 33	2064	server.exe
Token: SeIncBasePriorityPrivilege	2064	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2064	2124	798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe	86
PID 2124 wrote to memory of 2064	2124	798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe	86
PID 2124 wrote to memory of 2064	2124	798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe	86
PID 2064 wrote to memory of 2412	2064	server.exe	96
PID 2064 wrote to memory of 2412	2064	server.exe	96
PID 2064 wrote to memory of 2412	2064	server.exe	96

C:\Users\Admin\AppData\Local\Temp\798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe
"C:\Users\Admin\AppData\Local\Temp\798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- 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:2064
- - 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:2412

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

Query Registry

1

T1012

System Information Discovery

2

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

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

Filesize
23KB

MD5
503e4417f6a89a55da71cc205c19efa0

SHA1
f6cb3ba49e5fd3ae4900948bc40e63cf8962ba7b

SHA256
798877de0cc3ceabe25779c5b40ec0cfe867185e12367cf0a2ba172c24641d99

SHA512
c0f028cc38faf8035488cba73475d5f2b037f49c0a11e889953ab74ee97a8b2d9a63f03bda74efaec39a9d492188e24903c8ffb4eede5ac80843119c44dc7600

Download Submit
memory/2064-13-0x0000000074740000-0x0000000074CF1000-memory.dmp

Filesize
5.7MB

Download
memory/2064-14-0x0000000074740000-0x0000000074CF1000-memory.dmp

Filesize
5.7MB

Download
memory/2124-0-0x0000000074742000-0x0000000074743000-memory.dmp

Filesize
4KB

Download
memory/2124-1-0x0000000074740000-0x0000000074CF1000-memory.dmp

Filesize
5.7MB

Download
memory/2124-2-0x0000000074740000-0x0000000074CF1000-memory.dmp

Filesize
5.7MB

Download
memory/2124-12-0x0000000074740000-0x0000000074CF1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads