njrat | 68c902097fafe0f8b5909e267d1fe6912e943b07f7e9a96030de32da676635eb

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 22:41

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General

Target

faas.ps1
Size

125KB
MD5

d8c72c294f72a8b7541b91ed18cbe16c
SHA1

86e589115fcb800714350458674f06032a8c0ed7
SHA256

68c902097fafe0f8b5909e267d1fe6912e943b07f7e9a96030de32da676635eb
SHA512

0795004a0814dcfca238005dafc1e240b2ceca0b13909176f0721fbed8a54b0e2a527f33b2d3e94917a1b68f1302d35a092c00b5dc726dbf6a9fbc4d9732c1df
SSDEEP

3072:W1FulgDUujHZ9WOASQ87jX9a7nvDNCvJZSHDmhKvrQxa0:mF1UKrWOAsj0vDNCvvWsKzQx3

Score

10^/10

njrat hacked discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

127.0.0.1:4444

Mutex

51820cb0a31bd77e1a3fe5a2fd3b47f2

Attributes

reg_key
51820cb0a31bd77e1a3fe5a2fd3b47f2
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
3724	netsh.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4596	decrypted_exe.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explorer.exe.exe	decrypted_exe.exe
File opened for modification	C:\Windows\SysWOW64\Explorer.exe.exe	decrypted_exe.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explorer.exe.exe	decrypted_exe.exe
File opened for modification	C:\Program Files (x86)\Explorer.exe.exe	decrypted_exe.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4888	powershell.exe

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 2 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	decrypted_exe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4888	powershell.exe
4888	powershell.exe
4888	powershell.exe
4888	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4596	decrypted_exe.exe

Suspicious use of AdjustPrivilegeToken 38 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	powershell.exe
Token: SeDebugPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe
Token: 33	4596	decrypted_exe.exe
Token: SeIncBasePriorityPrivilege	4596	decrypted_exe.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4596	4888	powershell.exe	84
PID 4888 wrote to memory of 4596	4888	powershell.exe	84
PID 4888 wrote to memory of 4596	4888	powershell.exe	84
PID 4596 wrote to memory of 3724	4596	decrypted_exe.exe	85
PID 4596 wrote to memory of 3724	4596	decrypted_exe.exe	85
PID 4596 wrote to memory of 3724	4596	decrypted_exe.exe	85

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\faas.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Users\Admin\AppData\Local\Temp\decrypted_exe.exe
  "C:\Users\Admin\AppData\Local\Temp\decrypted_exe.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4596
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\decrypted_exe.exe" "decrypted_exe.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vutagegq.ja0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\decrypted_exe.exe

Filesize
93KB

MD5
f3d3cdb5f5ba00023ca78a531158fab0

SHA1
455e6b654ccf39ea38863d1e620ccc020aa864ff

SHA256
68cc83fa2cf2a9f7edb864324073b9e8baebb0734cfd384cb1072631161c8937

SHA512
30ae0bd77d0abef23e476f12a00375d34bef6cd1a9fc785f2aadffa7b5dda0d3603c73ba962d7f67b97949eeb6ff9db92e199540b04b23a588e479209d72d59c

Download Submit
memory/4596-18-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/4596-43-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/4596-42-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/4596-41-0x0000000074952000-0x0000000074953000-memory.dmp

Filesize
4KB

Download
memory/4596-17-0x0000000074952000-0x0000000074953000-memory.dmp

Filesize
4KB

Download
memory/4888-11-0x00007FFFE0FE0000-0x00007FFFE1AA1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-30-0x00007FFFE0FE0000-0x00007FFFE1AA1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-39-0x00007FFFE0FE3000-0x00007FFFE0FE5000-memory.dmp

Filesize
8KB

Download
memory/4888-40-0x00007FFFE0FE0000-0x00007FFFE1AA1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-12-0x00007FFFE0FE0000-0x00007FFFE1AA1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-0-0x00007FFFE0FE3000-0x00007FFFE0FE5000-memory.dmp

Filesize
8KB

Download
memory/4888-7-0x000001E8CCD00000-0x000001E8CCD22000-memory.dmp

Filesize
136KB

Download