njrat | 3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
27-11-2024 12:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe
Size

37KB
MD5

221d8ec128c937aa1461ae23500fc6b5
SHA1

5898c6cbd9e6472080848bb58bc76c85d163a2c8
SHA256

3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3
SHA512

c832f1ec97ae92aaa90a4e2e38b3eff1d2d0b21bedd595ca7f34b1569620d867efbaca899eddb45eadd6769858225e1c96d907739846a45ef5decf6cf71bfd3a
SSDEEP

384:NIROIiuPjtD+P3V+y0b1gBUtPr2s2Mf/rAF+rMRTyN/0L+EcoinblneHQM3epzX1:iRnmV10b1gBUt6lM3rM+rMRa8NulbtL

Score

10^/10

njrat game discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

game

6.tcp.eu.ngrok.io:13739

Mutex

86e44710278beb6caa0bbd364fe8064e

Attributes

reg_key
86e44710278beb6caa0bbd364fe8064e
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

Processes:

netsh.exe

pid	Process
2176	netsh.exe

Drops startup file 2 IoCs

Processes:

game.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\86e44710278beb6caa0bbd364fe8064e.exe	game.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\86e44710278beb6caa0bbd364fe8064e.exe	game.exe

Executes dropped EXE 1 IoCs

Processes:

game.exe

pid	Process
2600	game.exe

Loads dropped DLL 1 IoCs

Processes:

3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe

pid	Process
1832	3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

game.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\86e44710278beb6caa0bbd364fe8064e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\game.exe\" .."	game.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\86e44710278beb6caa0bbd364fe8064e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\game.exe\" .."	game.exe

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

Web Service

T1102

Processes:

flow	ioc
2	6.tcp.eu.ngrok.io
31	6.tcp.eu.ngrok.io
61	6.tcp.eu.ngrok.io

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

Processes:

netsh.exe

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 4 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

Processes:

3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exegame.exenetsh.exetaskkill.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	game.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

Processes:

taskkill.exe

pid	Process
2784	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

game.exe

pid	Process
2600	game.exe
2600	game.exe
2600	game.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

game.exe

pid	Process
2600	game.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

Processes:

game.exetaskkill.exe

description	pid	Process
Token: SeDebugPrivilege	2600	game.exe
Token: SeDebugPrivilege	2784	taskkill.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe
Token: 33	2600	game.exe
Token: SeIncBasePriorityPrivilege	2600	game.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exegame.exe

description	pid	Process	procid_target
PID 1832 wrote to memory of 2600	1832	3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe	30
PID 1832 wrote to memory of 2600	1832	3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe	30
PID 1832 wrote to memory of 2600	1832	3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe	30
PID 1832 wrote to memory of 2600	1832	3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe	30
PID 2600 wrote to memory of 2176	2600	game.exe	32
PID 2600 wrote to memory of 2176	2600	game.exe	32
PID 2600 wrote to memory of 2176	2600	game.exe	32
PID 2600 wrote to memory of 2176	2600	game.exe	32
PID 2600 wrote to memory of 2784	2600	game.exe	34
PID 2600 wrote to memory of 2784	2600	game.exe	34
PID 2600 wrote to memory of 2784	2600	game.exe	34
PID 2600 wrote to memory of 2784	2600	game.exe	34

C:\Users\Admin\AppData\Local\Temp\3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe
"C:\Users\Admin\AppData\Local\Temp\3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\game.exe
  "C:\Users\Admin\AppData\Local\Temp\game.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\game.exe" "game.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2176
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Modify Registry

T1112

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\game.exe

Filesize
37KB

MD5
221d8ec128c937aa1461ae23500fc6b5

SHA1
5898c6cbd9e6472080848bb58bc76c85d163a2c8

SHA256
3b0609403d6ee560d7a62520c9265fe8b8da99b3c8477e313da31eb6f4bb86a3

SHA512
c832f1ec97ae92aaa90a4e2e38b3eff1d2d0b21bedd595ca7f34b1569620d867efbaca899eddb45eadd6769858225e1c96d907739846a45ef5decf6cf71bfd3a

Download Submit
memory/1832-0-0x0000000074B31000-0x0000000074B32000-memory.dmp

Filesize
4KB

Download
memory/1832-1-0x0000000074B30000-0x00000000750DB000-memory.dmp

Filesize
5.7MB

Download
memory/1832-2-0x0000000074B30000-0x00000000750DB000-memory.dmp

Filesize
5.7MB

Download
memory/1832-10-0x0000000074B30000-0x00000000750DB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-11-0x0000000074B30000-0x00000000750DB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-12-0x0000000074B30000-0x00000000750DB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-14-0x0000000074B30000-0x00000000750DB000-memory.dmp

Filesize
5.7MB

Download