njrat | 9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113

Analysis

max time kernel
147s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/09/2024, 23:51

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General

Target
9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe
Size 119KB
Sample240922-3wlveszfnm
SHA256 9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113
MD5 0952ac77587be603ff4b344d745a10cd
SHA1 8d49772860bd5cf6e806172cb597ee079e323fc7
SHA512 0b9b0ce955a6e5ca8c0c69f4cb51931c53a93ad9d7b4247220077997cef57dd7436c0c8381139490477062024f3b8399ab737244ed5eeadcf9fa53d73b9b0359
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FOv:P5eznsjsguGDFqGZ2rDL14FOv
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
1876	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe

Executes dropped EXE 3 IoCs

pid	Process
5012	chargeable.exe
4924	chargeable.exe
4028	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe"	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 4924	5012	chargeable.exe	91
PID 5012 set thread context of 4028	5012	chargeable.exe	90

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3108	4028	WerFault.exe	90

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	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.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	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe
Token: 33	4924	chargeable.exe
Token: SeIncBasePriorityPrivilege	4924	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 5012	4048	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe	87
PID 4048 wrote to memory of 5012	4048	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe	87
PID 4048 wrote to memory of 5012	4048	9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe	87
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4924	5012	chargeable.exe	91
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 5012 wrote to memory of 4028	5012	chargeable.exe	90
PID 4924 wrote to memory of 1876	4924	chargeable.exe	95
PID 4924 wrote to memory of 1876	4924	chargeable.exe	95
PID 4924 wrote to memory of 1876	4924	chargeable.exe	95

C:\Users\Admin\AppData\Local\Temp\9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe
"C:\Users\Admin\AppData\Local\Temp\9c31304255378bf6588af663d4551979cadff2fbf9d4ef480aca2f6476fbf113.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4048
- 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:5012
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:4028
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 80
      4⤵
      Program crash
      PID:3108
- - 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:4924
  - - 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:1876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4028 -ip 4028
1⤵
PID:3888

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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Downloads

chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 119KB
SHA256 68fab7610c5dcb3ead194859b8d7b0b99fb55831f9309594655fac8a69f1fcad
MD5 eeb3969f81f520d2dea5fffd41867ea6
SHA1 ea6adcc9cc438126fb7e1aabd9df2544edb32384
SHA512 02a83ee66474f74800cd1d7d7229152aa323c733fbd780ce08838c66667c1eaa8cfc0797744f987307aacba1bb3c7bd2d04c6fe7894eaa82612e7bf66b8a5150
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FON:P5eznsjsguGDFqGZ2rDL14FON
MD5 SHA1 SHA512 SSDEEP

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memory/4048-19-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/4048-2-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/4048-6-0x0000000074E42000-0x0000000074E43000-memory.dmp

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memory/4048-7-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/4048-1-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/4048-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

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memory/4048-21-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/4924-23-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4924-28-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/4924-30-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/5012-20-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/5012-22-0x0000000074E40000-0x00000000753F1000-memory.dmp

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memory/5012-29-0x0000000074E40000-0x00000000753F1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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