njrat | 918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60

General

Target

918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe
Size

23KB
MD5

b9280f9442b675e6a0717c8e05e28460
SHA1

c240f6cfbef7077553f4a39c23eb06984f1fece8
SHA256

918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60
SHA512

90bfd624a48b7e9171c90e4ece3f31d1c7b9f52ed88bb95fc8fc25d09b2c660e26d82b11d07142a690bd47a13c1e5742a4879c2961f5367da829ba36022006f5
SSDEEP

384:EoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIr:z7O89p2rRpcnuJ

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
1612	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe

Executes dropped EXE 1 IoCs

pid	Process
2236	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-1-5-21-3350944739-639801879-157714471-1000\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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe
Token: 33	2236	server.exe
Token: SeIncBasePriorityPrivilege	2236	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 2236	1188	918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe	84
PID 1188 wrote to memory of 2236	1188	918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe	84
PID 1188 wrote to memory of 2236	1188	918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe	84
PID 2236 wrote to memory of 1612	2236	server.exe	88
PID 2236 wrote to memory of 1612	2236	server.exe	88
PID 2236 wrote to memory of 1612	2236	server.exe	88

C:\Users\Admin\AppData\Local\Temp\918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe
"C:\Users\Admin\AppData\Local\Temp\918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1188
- 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:2236
- - 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:1612

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
b9280f9442b675e6a0717c8e05e28460

SHA1
c240f6cfbef7077553f4a39c23eb06984f1fece8

SHA256
918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60

SHA512
90bfd624a48b7e9171c90e4ece3f31d1c7b9f52ed88bb95fc8fc25d09b2c660e26d82b11d07142a690bd47a13c1e5742a4879c2961f5367da829ba36022006f5

Download Submit
memory/1188-0-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

Filesize
4KB

Download
memory/1188-1-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/1188-2-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/1188-15-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/1188-14-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

Filesize
4KB

Download
memory/2236-12-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/2236-13-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/2236-16-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads