njrat | f67835972297a83239c92c4f76eafa46d6d34c87af3bff31fb8d2f034873f831

Analysis

max time kernel
120s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-09-2024 14:35

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General

Target

bae82b7001b12878a9fef23387ad1730N.exe
Size

93KB
MD5

bae82b7001b12878a9fef23387ad1730
SHA1

3b6719573121db102b8d87f32c7bad03150fbfbc
SHA256

f67835972297a83239c92c4f76eafa46d6d34c87af3bff31fb8d2f034873f831
SHA512

7ce11f025038081b61d02dfe68a14a3e410c75a46d2f82d1bb89cb929e85b71f949d4bb82e057cc943e6c541df0f10c6122518eb0bcad652a233bece83c03bff
SSDEEP

768:vY3Kx530YTXspgM0m2zGjpyDtdXWuDtXfLWhyXxrjEtCdnl2pi1Rz4Rk3TsGdpR3:jxZ0AA0mT1mrWgL5jEwzGi1dD/DRgS

Score

10^/10

njrat roblox discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

RobLox

hakim32.ddns.net:2000

127.0.0.1:5552

Mutex

54bcd0184406f711ed38737b8c13fd6e

Attributes

reg_key
54bcd0184406f711ed38737b8c13fd6e
splitter
|'|'|

Signatures

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
2684	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
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
2656	server.exe

Loads dropped DLL 2 IoCs

pid	Process
2964	bae82b7001b12878a9fef23387ad1730N.exe
2964	bae82b7001b12878a9fef23387ad1730N.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 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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bae82b7001b12878a9fef23387ad1730N.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe
2656	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2656	server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2656	2964	bae82b7001b12878a9fef23387ad1730N.exe	30
PID 2964 wrote to memory of 2656	2964	bae82b7001b12878a9fef23387ad1730N.exe	30
PID 2964 wrote to memory of 2656	2964	bae82b7001b12878a9fef23387ad1730N.exe	30
PID 2964 wrote to memory of 2656	2964	bae82b7001b12878a9fef23387ad1730N.exe	30
PID 2656 wrote to memory of 2684	2656	server.exe	31
PID 2656 wrote to memory of 2684	2656	server.exe	31
PID 2656 wrote to memory of 2684	2656	server.exe	31
PID 2656 wrote to memory of 2684	2656	server.exe	31

C:\Users\Admin\AppData\Local\Temp\bae82b7001b12878a9fef23387ad1730N.exe
"C:\Users\Admin\AppData\Local\Temp\bae82b7001b12878a9fef23387ad1730N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964
- C:\ProgramData\server.exe
  "C:\ProgramData\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:2656
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2684

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

Exfiltration

Impact

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Downloads

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

Filesize
5B

MD5
bbcd2be775370c1e106e66d077a93f3b

SHA1
a44b6a98f30e3275fc304bc3b29e0eab8ae47f20

SHA256
a7aa76f137ba550c381cfb8e5195a01963ae49db167e1cd1e0a8b902ed81eda1

SHA512
bb6e0d1f24253a9525fd538debf8ca68eb7078cb8539140c184331a854ecdea192fbcc314c4154a0a474c9aec41a79efeb8150922454c3c9e71eeb5297ae2f72

Download Submit
\ProgramData\server.exe

Filesize
93KB

MD5
bae82b7001b12878a9fef23387ad1730

SHA1
3b6719573121db102b8d87f32c7bad03150fbfbc

SHA256
f67835972297a83239c92c4f76eafa46d6d34c87af3bff31fb8d2f034873f831

SHA512
7ce11f025038081b61d02dfe68a14a3e410c75a46d2f82d1bb89cb929e85b71f949d4bb82e057cc943e6c541df0f10c6122518eb0bcad652a233bece83c03bff

Download Submit
memory/2656-15-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2656-16-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2656-17-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2656-38-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2964-0-0x0000000074341000-0x0000000074342000-memory.dmp

Filesize
4KB

Download
memory/2964-1-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2964-2-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2964-14-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download