njrat | c05a6bd5bf585ef5575cdfa88bf72a478f6eda99c56a4f3a863ab84de13cc805

General

Target

Cs1.6 MG42 PACK - INSTALL.exe
Size

62KB
MD5

b9b6a6bd2ebea8e21f32ad824ec994dd
SHA1

35325d6eaac3e00f068abbb9e0c550f9633eb1d0
SHA256

a246acc10b21059bf9409e813694d23149e50c54f4e4605382ce000c185bbe88
SHA512

f1b4e75a4c3e5e9b4ef92a373a24ea5c1cf41cf24adf356f23624aa65d00b9c91e9f4b96457932a8b564e65b3fa5220c9f38a8f69fe76deee36581f880da9eed
SSDEEP

768:eAo6AXg6Gerc7ngs5/3/PB0LXTSbGqzOZigmW3Su+tYutFF1sXXXX0BXXXXXww3c:eAZJp7tmSbGiOBmW3f0Kw35PX

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
2360	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\301b5fcf8ce2fab8868e80b6c1f912fe.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\301b5fcf8ce2fab8868e80b6c1f912fe.exe	System.exe

Executes dropped EXE 1 IoCs

pid	Process
1964	System.exe

Loads dropped DLL 1 IoCs

pid	Process
2700	Cs1.6 MG42 PACK - INSTALL.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\301b5fcf8ce2fab8868e80b6c1f912fe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\301b5fcf8ce2fab8868e80b6c1f912fe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.exe\" .."	System.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	Cs1.6 MG42 PACK - INSTALL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe
1964	System.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 1964	2700	Cs1.6 MG42 PACK - INSTALL.exe	30
PID 2700 wrote to memory of 1964	2700	Cs1.6 MG42 PACK - INSTALL.exe	30
PID 2700 wrote to memory of 1964	2700	Cs1.6 MG42 PACK - INSTALL.exe	30
PID 2700 wrote to memory of 1964	2700	Cs1.6 MG42 PACK - INSTALL.exe	30
PID 1964 wrote to memory of 2360	1964	System.exe	31
PID 1964 wrote to memory of 2360	1964	System.exe	31
PID 1964 wrote to memory of 2360	1964	System.exe	31
PID 1964 wrote to memory of 2360	1964	System.exe	31

C:\Users\Admin\AppData\Local\Temp\Cs1.6 MG42 PACK - INSTALL.exe
"C:\Users\Admin\AppData\Local\Temp\Cs1.6 MG42 PACK - INSTALL.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\Temp\System.exe
  "C:\Users\Admin\AppData\Local\Temp\System.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2360

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

System Information Discovery

1

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

\Users\Admin\AppData\Local\Temp\System.exe

Filesize
62KB

MD5
b9b6a6bd2ebea8e21f32ad824ec994dd

SHA1
35325d6eaac3e00f068abbb9e0c550f9633eb1d0

SHA256
a246acc10b21059bf9409e813694d23149e50c54f4e4605382ce000c185bbe88

SHA512
f1b4e75a4c3e5e9b4ef92a373a24ea5c1cf41cf24adf356f23624aa65d00b9c91e9f4b96457932a8b564e65b3fa5220c9f38a8f69fe76deee36581f880da9eed

Download Submit
memory/1964-11-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/1964-12-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/1964-13-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/1964-15-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/2700-0-0x00000000740B1000-0x00000000740B2000-memory.dmp

Filesize
4KB

Download
memory/2700-1-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/2700-3-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download
memory/2700-10-0x00000000740B0000-0x000000007465B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads