njrat | 1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 19:24

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General

Target
1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe
Size 117KB
Sample240724-x4gmsashnp
SHA256 1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a
MD5 8b8bb6144d304519b1bc456f1aa19ef3
SHA1 6b4c633212c8f6e6a3bf0e10f70682bc25280cf4
SHA512 a896cf8faa97600cf13e85c33e2d72401dbb1dc2548baa530a1baf397d18be8f6eab1ae734b094186a06e5753650493a19161af4d4ecbd5df6017729a8855219
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLR:P5eznsjsguGDFqGZ2rDLR
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
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
1936	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe

Executes dropped EXE 2 IoCs

pid	Process
1680	chargeable.exe
3032	chargeable.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe"	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 3032	1680	chargeable.exe	95

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe
Token: 33	3032	chargeable.exe
Token: SeIncBasePriorityPrivilege	3032	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 1680	4552	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe	92
PID 4552 wrote to memory of 1680	4552	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe	92
PID 4552 wrote to memory of 1680	4552	1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe	92
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 1680 wrote to memory of 3032	1680	chargeable.exe	95
PID 3032 wrote to memory of 1936	3032	chargeable.exe	96
PID 3032 wrote to memory of 1936	3032	chargeable.exe	96
PID 3032 wrote to memory of 1936	3032	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe
"C:\Users\Admin\AppData\Local\Temp\1e9c6913990c4143c36c3d8cc78cacb5c61640ca5716b78f9d3e7f67b695580a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3032
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1936

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

Query Registry

T1012

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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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 117KB
SHA256 9340c046d0d72fd381aee77d99cb0095f6f59b5ebc9dfa902493eea7dba7e770
MD5 300ef1aca59b85af4b1db8a4cf5dadc2
SHA1 b87c22a80579bd8dba617d759d3cdf666cb91e9d
SHA512 d043766b1401251165e18df4396f28e236f161b3972ee6020f02fbb5c071012b67b79c6ce09608d5fb1f96992f736517075c34446d90ad42d4b2b4c6db4961ce
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLR:P5eznsjsguGDFqGZ2rDLR
MD5 SHA1 SHA512 SSDEEP

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memory/1680-18-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/1680-24-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/3032-19-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3032-22-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/3032-23-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/3032-25-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/4552-0-0x0000000075442000-0x0000000075443000-memory.dmp

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memory/4552-1-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/4552-2-0x0000000075440000-0x00000000759F1000-memory.dmp

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memory/4552-17-0x0000000075440000-0x00000000759F1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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