njrat | 37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2

General

Target

37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe
Size

32KB
MD5

a8457a23cb8ef2a5832e49ad5cfd015a
SHA1

bad59acccc184b3e4165f14b0572285c366e572d
SHA256

37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2
SHA512

02bbcecf6d5cd55e12284b138d1167ea159436ac2397b3177222ca6d549c205b3289b0b812581d607190242e0d358e7465b069eed6ddab65a7a03f9dd17cfe40
SSDEEP

384:TU5o4U+mVQQyQJsixtePRuRMNFPIk+TWq4lDModg9TdFpyFEIGsJjwE7UMcrie4O:YuV4kteSspiouDbEEIGfRH+f

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

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
116	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\687a11c6212507fa992aa1644b336ef5.exe	System32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\687a11c6212507fa992aa1644b336ef5.exe	System32.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	System32.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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\687a11c6212507fa992aa1644b336ef5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .."	System32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\687a11c6212507fa992aa1644b336ef5 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System32.exe\" .."	System32.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	37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe
Token: 33	2676	System32.exe
Token: SeIncBasePriorityPrivilege	2676	System32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 2676	3560	37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe	82
PID 3560 wrote to memory of 2676	3560	37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe	82
PID 3560 wrote to memory of 2676	3560	37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe	82
PID 2676 wrote to memory of 116	2676	System32.exe	88
PID 2676 wrote to memory of 116	2676	System32.exe	88
PID 2676 wrote to memory of 116	2676	System32.exe	88

C:\Users\Admin\AppData\Local\Temp\37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe
"C:\Users\Admin\AppData\Local\Temp\37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Users\Admin\AppData\Local\Temp\System32.exe
  "C:\Users\Admin\AppData\Local\Temp\System32.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System32.exe" "System32.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:116

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\System32.exe

Filesize
32KB

MD5
a8457a23cb8ef2a5832e49ad5cfd015a

SHA1
bad59acccc184b3e4165f14b0572285c366e572d

SHA256
37347923c50a562b1f3a24212e85b9490fbbed9ae9c395d3d3f9db51cbc987f2

SHA512
02bbcecf6d5cd55e12284b138d1167ea159436ac2397b3177222ca6d549c205b3289b0b812581d607190242e0d358e7465b069eed6ddab65a7a03f9dd17cfe40

Download Submit
memory/2676-12-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/2676-14-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/2676-15-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/2676-17-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3560-0-0x0000000074F72000-0x0000000074F73000-memory.dmp

Filesize
4KB

Download
memory/3560-1-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3560-2-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3560-13-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads