njrat | f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191

General

Target

f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe
Size

23KB
MD5

0969d778d1cb589b8f44015fdb1d509e
SHA1

3d91bc34cda37e685082e3ca77764f5edf708d56
SHA256

f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191
SHA512

c68c76b7f9a5fb46fef9d0b5bc2df347c497c570c53ee4b43e84d5a2a9658a340a0a458ca094fa1a80b8957a0689989c98f1060f092bafbdd4ea07bbce8cdb8a
SSDEEP

384:Xc6ze6e1PAhJVzC3tC1im/BsTx46PgZ0rap9HBmRvR6JZlbw8hqIusZzZs2:Ve9EJLN/yRpcnu4

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
4960	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe

Executes dropped EXE 1 IoCs

pid	Process
3692	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\eaf80d5210968bcd9b81be06e24c19e9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\eaf80d5210968bcd9b81be06e24c19e9 = "\"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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe
Token: 33	3692	server.exe
Token: SeIncBasePriorityPrivilege	3692	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 3692	4676	f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe	84
PID 4676 wrote to memory of 3692	4676	f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe	84
PID 4676 wrote to memory of 3692	4676	f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe	84
PID 3692 wrote to memory of 4960	3692	server.exe	85
PID 3692 wrote to memory of 4960	3692	server.exe	85
PID 3692 wrote to memory of 4960	3692	server.exe	85

C:\Users\Admin\AppData\Local\Temp\f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe
"C:\Users\Admin\AppData\Local\Temp\f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4676
- 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:3692
- - 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:4960

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
23KB

MD5
0969d778d1cb589b8f44015fdb1d509e

SHA1
3d91bc34cda37e685082e3ca77764f5edf708d56

SHA256
f93fece9d5a92259d55765581177888c37cfc09661640106b967c84f6f8b2191

SHA512
c68c76b7f9a5fb46fef9d0b5bc2df347c497c570c53ee4b43e84d5a2a9658a340a0a458ca094fa1a80b8957a0689989c98f1060f092bafbdd4ea07bbce8cdb8a

Download Submit
memory/3692-13-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/3692-15-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/3692-14-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/3692-16-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/3692-17-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/4676-0-0x0000000074FE2000-0x0000000074FE3000-memory.dmp

Filesize
4KB

Download
memory/4676-1-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/4676-2-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/4676-12-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads