njrat | 5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220df

General

Target

5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe
Size

30KB
MD5

f13055f43966b9b17059336565ef6710
SHA1

3d9662076e0c9147629bc33906f15648cf53b922
SHA256

5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220df
SHA512

222f8df538537e26df9da2c49707b27e288f3b629876826adda4835f783a709e219dee43f98bbc30eaac575e0169129f8e8957f13aa728b1329e86d835bea21f
SSDEEP

384:k+N9Uac4mTln3cUY5xiJ9AmWJQl45HkKeBkqoxVdZww8gJpCrglPE2CqhzOMvlN:UTY5E9Azddeloxew8NrUPBa6IbTTrvc

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
2728	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	btv.exe

Loads dropped DLL 1 IoCs

pid	Process
2140	5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\a13af3af2e3146fc22837ed4c637802b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\btv.exe\" .."	btv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a13af3af2e3146fc22837ed4c637802b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\btv.exe\" .."	btv.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	btv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe
2732	btv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	btv.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2732	2140	5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe	30
PID 2140 wrote to memory of 2732	2140	5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe	30
PID 2140 wrote to memory of 2732	2140	5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe	30
PID 2140 wrote to memory of 2732	2140	5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe	30
PID 2732 wrote to memory of 2728	2732	btv.exe	31
PID 2732 wrote to memory of 2728	2732	btv.exe	31
PID 2732 wrote to memory of 2728	2732	btv.exe	31
PID 2732 wrote to memory of 2728	2732	btv.exe	31

C:\Users\Admin\AppData\Local\Temp\5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe
"C:\Users\Admin\AppData\Local\Temp\5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220dfN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Users\Admin\AppData\Local\Temp\btv.exe
  "C:\Users\Admin\AppData\Local\Temp\btv.exe"
  2⤵
  - 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:2732
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\btv.exe" "btv.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2728

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\btv.exe

Filesize
30KB

MD5
f13055f43966b9b17059336565ef6710

SHA1
3d9662076e0c9147629bc33906f15648cf53b922

SHA256
5c9dee8e2c3ab172ebd9ff51c1eb69d2bcc0511c68f534c21a874b57758220df

SHA512
222f8df538537e26df9da2c49707b27e288f3b629876826adda4835f783a709e219dee43f98bbc30eaac575e0169129f8e8957f13aa728b1329e86d835bea21f

Download Submit
memory/2140-0-0x0000000074371000-0x0000000074372000-memory.dmp

Filesize
4KB

Download
memory/2140-1-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2140-2-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2140-10-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2732-11-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2732-13-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2732-12-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2732-14-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads