njrat | 56510920355a5531d174cb55ebe86f4b0d85c748d0e15dd78849a29f0f3763d1

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 07:21

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General

Target

mod.exe
Size

93KB
MD5

e9987ac76debe4d7c754f30cec95d618
SHA1

7678e6011456d26f579c7dcdd238ff651cfa4edd
SHA256

56510920355a5531d174cb55ebe86f4b0d85c748d0e15dd78849a29f0f3763d1
SHA512

919003b30226a8cc81540f652ae51301641325516a5d9bbba140b293b3b97141fbd9274a2f1e942b75e618f57d6e02799e488b36f2cdcbc35f48cc9cc5594771
SSDEEP

1536:GYqUZFRPmGvMzLsvOnjEwzGi1dDvDogS:GYRRPmGvMzIvOMi1dXR

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:13417

Mutex

a7048b533c07e8a45edf75a414a0b3cd

Attributes

reg_key
a7048b533c07e8a45edf75a414a0b3cd
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
1976	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\a7048b533c07e8a45edf75a414a0b3cdWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a7048b533c07e8a45edf75a414a0b3cdWindows 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
2332	server.exe

Loads dropped DLL 2 IoCs

pid	Process
1096	mod.exe
1096	mod.exe

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

Web Service

T1102

flow	ioc
2	2.tcp.eu.ngrok.io
10	2.tcp.eu.ngrok.io
30	2.tcp.eu.ngrok.io

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	server.exe
File opened for modification	C:\autorun.inf	server.exe
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe

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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	mod.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
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe
2332	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2332	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe
Token: 33	2332	server.exe
Token: SeIncBasePriorityPrivilege	2332	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 2332	1096	mod.exe	30
PID 1096 wrote to memory of 2332	1096	mod.exe	30
PID 1096 wrote to memory of 2332	1096	mod.exe	30
PID 1096 wrote to memory of 2332	1096	mod.exe	30
PID 2332 wrote to memory of 1976	2332	server.exe	31
PID 2332 wrote to memory of 1976	2332	server.exe	31
PID 2332 wrote to memory of 1976	2332	server.exe	31
PID 2332 wrote to memory of 1976	2332	server.exe	31

C:\Users\Admin\AppData\Local\Temp\mod.exe
"C:\Users\Admin\AppData\Local\Temp\mod.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops autorun.inf file
  - 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:2332
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

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

Replication Through Removable Media

T1091

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
5B

MD5
f478c76bbb3174dbc7fabae62224f818

SHA1
bed239508bad9fcd15a9bdea1e132f62468d07d1

SHA256
d7a0af52f260c87ef40bdfc1f1196faf7797593d62c6120ae99957d78762ed1a

SHA512
b653aa05746c721c9129456de3798d9e94385a0e5630c5d497fa0d6076274560885edd5875232b40d07aafa3f0e929e9b3bf2ff388ad2c21b3589cb01b79f94b

Download Submit
\Users\Admin\AppData\Roaming\server.exe

Filesize
93KB

MD5
e9987ac76debe4d7c754f30cec95d618

SHA1
7678e6011456d26f579c7dcdd238ff651cfa4edd

SHA256
56510920355a5531d174cb55ebe86f4b0d85c748d0e15dd78849a29f0f3763d1

SHA512
919003b30226a8cc81540f652ae51301641325516a5d9bbba140b293b3b97141fbd9274a2f1e942b75e618f57d6e02799e488b36f2cdcbc35f48cc9cc5594771

Download Submit
memory/1096-0-0x0000000073EF1000-0x0000000073EF2000-memory.dmp

Filesize
4KB

Download
memory/1096-1-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-2-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-14-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/2332-15-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/2332-16-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/2332-51-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/2332-53-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download
memory/2332-52-0x0000000073EF0000-0x000000007449B000-memory.dmp

Filesize
5.7MB

Download