njrat | 2bd2ae5777276bcb8542559bd68493bd7768164c1b2580bc0914086bdc86f4af

General

Target

42b8b11da21d385c84a49d5022aece77.exe
Size

32KB
MD5

42b8b11da21d385c84a49d5022aece77
SHA1

afedf0ac8ab7b4f962b453c32507f12533e5b5cc
SHA256

2bd2ae5777276bcb8542559bd68493bd7768164c1b2580bc0914086bdc86f4af
SHA512

7fddad26d4757f03a21c3de6ce4871379a755c2725c6f12827e43137dca8ae913b9c5b35178c075305abfb711a488214a8240a75a68d68cc7a7eaaa4ab50bb5a
SSDEEP

384:yntgwUw7eX+xsi1hpGONr/ZFPIexKBTUUQ/lD/odg9TduS/EIGsJjwE7UMcrie4m:QxkYhpNDj/RouDuCEIGfRR+f

Score

10^/10

njrat win32 discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Win32

C2

185.223.31.253:5552

Mutex

2788638c602f70a3631bf94d56a4ce1f

Attributes

reg_key
2788638c602f70a3631bf94d56a4ce1f
splitter
|'|'|

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
2748	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2788638c602f70a3631bf94d56a4ce1f.exe	System32.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2788638c602f70a3631bf94d56a4ce1f.exe	System32.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	System32.exe

Loads dropped DLL 1 IoCs

pid	Process
2652	42b8b11da21d385c84a49d5022aece77.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\2788638c602f70a3631bf94d56a4ce1f = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32.exe\" .."	System32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\2788638c602f70a3631bf94d56a4ce1f = "\"C:\\Users\\Admin\\AppData\\Roaming\\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	42b8b11da21d385c84a49d5022aece77.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	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe
Token: 33	2660	System32.exe
Token: SeIncBasePriorityPrivilege	2660	System32.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2660	2652	42b8b11da21d385c84a49d5022aece77.exe	30
PID 2652 wrote to memory of 2660	2652	42b8b11da21d385c84a49d5022aece77.exe	30
PID 2652 wrote to memory of 2660	2652	42b8b11da21d385c84a49d5022aece77.exe	30
PID 2652 wrote to memory of 2660	2652	42b8b11da21d385c84a49d5022aece77.exe	30
PID 2660 wrote to memory of 2748	2660	System32.exe	31
PID 2660 wrote to memory of 2748	2660	System32.exe	31
PID 2660 wrote to memory of 2748	2660	System32.exe	31
PID 2660 wrote to memory of 2748	2660	System32.exe	31

C:\Users\Admin\AppData\Local\Temp\42b8b11da21d385c84a49d5022aece77.exe
"C:\Users\Admin\AppData\Local\Temp\42b8b11da21d385c84a49d5022aece77.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Roaming\System32.exe
  "C:\Users\Admin\AppData\Roaming\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:2660
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System32.exe" "System32.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2748

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\Roaming\System32.exe

Filesize
32KB

MD5
42b8b11da21d385c84a49d5022aece77

SHA1
afedf0ac8ab7b4f962b453c32507f12533e5b5cc

SHA256
2bd2ae5777276bcb8542559bd68493bd7768164c1b2580bc0914086bdc86f4af

SHA512
7fddad26d4757f03a21c3de6ce4871379a755c2725c6f12827e43137dca8ae913b9c5b35178c075305abfb711a488214a8240a75a68d68cc7a7eaaa4ab50bb5a

Download Submit
memory/2652-0-0x00000000744E1000-0x00000000744E2000-memory.dmp

Filesize
4KB

Download
memory/2652-1-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-2-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-12-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-13-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-10-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-11-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-15-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads