njrat | 606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2

General

Target

606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe
Size

100KB
MD5

4d777e7464920e953ff9ccc1e21ac320
SHA1

14effc2633d29c55c0ff8ef09359eca07c29a49f
SHA256

606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2
SHA512

2916d173f01bebdc5df5a0447e8a5a6cf7c0680bfda37e61d7ce2cfe834554143eee04930057b48e7e9ea511fdd41af5be16c93ffacbbef9101d745398ac1a30
SSDEEP

3072:86IB+CLX3g0visO6/DWJ0cB7BTKJpkYHwR6wBF:86IBZ3g0v467WJ0cB7ekYHwHX

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

Processes:

netsh.exe

pid	Process
4928	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

Processes:

606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid	Process
2872	server.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f2f87facfb3b2890d763e0ef63e6f65f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f2f87facfb3b2890d763e0ef63e6f65f = "\"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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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:

606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exeserver.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.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

Processes:

server.exe

description	pid	Process
Token: SeDebugPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe
Token: 33	2872	server.exe
Token: SeIncBasePriorityPrivilege	2872	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exeserver.exe

description	pid	Process	procid_target
PID 976 wrote to memory of 2872	976	606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe	92
PID 976 wrote to memory of 2872	976	606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe	92
PID 976 wrote to memory of 2872	976	606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe	92
PID 2872 wrote to memory of 4928	2872	server.exe	97
PID 2872 wrote to memory of 4928	2872	server.exe	97
PID 2872 wrote to memory of 4928	2872	server.exe	97

C:\Users\Admin\AppData\Local\Temp\606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe
"C:\Users\Admin\AppData\Local\Temp\606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:976
- 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:2872
- - 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:4928

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
100KB

MD5
4d777e7464920e953ff9ccc1e21ac320

SHA1
14effc2633d29c55c0ff8ef09359eca07c29a49f

SHA256
606f3743352d22f589b94dfa845d2ec06fe6f655791b47e415ff8f234926c8e2

SHA512
2916d173f01bebdc5df5a0447e8a5a6cf7c0680bfda37e61d7ce2cfe834554143eee04930057b48e7e9ea511fdd41af5be16c93ffacbbef9101d745398ac1a30

Download Submit
memory/976-17-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/976-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/976-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/976-3-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/976-16-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/976-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/2872-18-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-19-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-20-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-21-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-22-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-23-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-24-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2872-25-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads