njrat | c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 03:32

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General

Target

c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe
Size

93KB
MD5

d61b6c8d2031c9c14fd2ca8cac4abbd0
SHA1

232a655eb7c720a90d30f4f51a3aa4fde319be2b
SHA256

c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb
SHA512

4649981329ec72d555af8888b3bc2b6e93d3569c232247f430147aa32b8f907dc7f1e188f3ec32c5a33fa95cf06f8c3719da033959cb1af709ab4e133a2b3e3a
SSDEEP

1536:1emC+xhUa9urgOB9RNvM4jEwzGi1dDlDRgS:1egUa9urgONdGi1dRO

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

2.tcp.eu.ngrok.io:17881

Mutex

a5ecb8dd72f32c83945d9630db93a6c0

Attributes

reg_key
a5ecb8dd72f32c83945d9630db93a6c0
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Disables Task Manager via registry modification
defense_evasion

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2796	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a5ecb8dd72f32c83945d9630db93a6c0Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a5ecb8dd72f32c83945d9630db93a6c0Windows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
3044	server.exe

Loads dropped DLL 2 IoCs

pid	Process
1240	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe
1240	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
41	2.tcp.eu.ngrok.io
2	2.tcp.eu.ngrok.io
22	2.tcp.eu.ngrok.io

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explower.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explower.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explower.exe	server.exe
File opened for modification	C:\Program Files (x86)\Explower.exe	server.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	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe
3044	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3044	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe
Token: 33	3044	server.exe
Token: SeIncBasePriorityPrivilege	3044	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1240 wrote to memory of 3044	1240	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe	30
PID 1240 wrote to memory of 3044	1240	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe	30
PID 1240 wrote to memory of 3044	1240	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe	30
PID 1240 wrote to memory of 3044	1240	c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe	30
PID 3044 wrote to memory of 2796	3044	server.exe	32
PID 3044 wrote to memory of 2796	3044	server.exe	32
PID 3044 wrote to memory of 2796	3044	server.exe	32
PID 3044 wrote to memory of 2796	3044	server.exe	32

C:\Users\Admin\AppData\Local\Temp\c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe
"C:\Users\Admin\AppData\Local\Temp\c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3044
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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 Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
d43c5b07c128b116b7bc8faf7b8efa9d

SHA1
dd3540ad4ae14b21b665d108cf4570c2dfa6a6fa

SHA256
80ad1cc7b3a784dad618a445af0c8cf3efa903f82a814756f2aaa7b57f45791f

SHA512
618b01e2b808e1954d011635dfdf63bc75855145208fc5cae33ce09c7e5b43cf978f6511beb311765e6920e728a290c9f9ced7563e40e8ff8d093d50fdc18334

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
d61b6c8d2031c9c14fd2ca8cac4abbd0

SHA1
232a655eb7c720a90d30f4f51a3aa4fde319be2b

SHA256
c50c74721a340dfa457152405bb9fcf9bdd725b321510f8eaf2b23c4a68a6abb

SHA512
4649981329ec72d555af8888b3bc2b6e93d3569c232247f430147aa32b8f907dc7f1e188f3ec32c5a33fa95cf06f8c3719da033959cb1af709ab4e133a2b3e3a

Download Submit
memory/1240-0-0x0000000074541000-0x0000000074542000-memory.dmp

Filesize
4KB

Download
memory/1240-1-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/1240-2-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/1240-14-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/3044-16-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/3044-15-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/3044-47-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download