njrat | a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
29/07/2024, 02:15

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General

Target
a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe
Size 116KB
Sample240729-cprh8ascra
SHA256 a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64
MD5 cef3c4028da60434fb7058e9c001dc9a
SHA1 d7200c1f6936fda0af24af86ced77de1272011e2
SHA512 2bf1dc26824982d13928478fa9ca6ce7c898c01727086e55f09e5d679da523da13191b0afabbbbcb3a7208940bb2e9a28ecd6fde74a654499914a9e296aadbc5
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuM9:P5eznsjsguGDFqGZ2r9
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
5000	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-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe

Executes dropped EXE 4 IoCs

pid	Process
3584	chargeable.exe
5076	chargeable.exe
64	chargeable.exe
3188	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-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe"	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3584 set thread context of 5076	3584	chargeable.exe	97
PID 3584 set thread context of 64	3584	chargeable.exe	96
PID 3584 set thread context of 3188	3584	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

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1836	64	WerFault.exe	96
3868	3188	WerFault.exe	95
3900	64	WerFault.exe	96

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	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe
Token: 33	5076	chargeable.exe
Token: SeIncBasePriorityPrivilege	5076	chargeable.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 3584	3932	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe	93
PID 3932 wrote to memory of 3584	3932	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe	93
PID 3932 wrote to memory of 3584	3932	a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe	93
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 5076	3584	chargeable.exe	97
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 64	3584	chargeable.exe	96
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 3584 wrote to memory of 3188	3584	chargeable.exe	95
PID 5076 wrote to memory of 5000	5076	chargeable.exe	105
PID 5076 wrote to memory of 5000	5076	chargeable.exe	105
PID 5076 wrote to memory of 5000	5076	chargeable.exe	105

C:\Users\Admin\AppData\Local\Temp\a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe
"C:\Users\Admin\AppData\Local\Temp\a1933423c7dfe1739a011d13b3fa93c5caa8b398c0a608a6c661fa4176cf4c64.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- 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:3584
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:3188
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 80
      4⤵
      Program crash
      PID:3868
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:64
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 12
      4⤵
      Program crash
      PID:1836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 56
      4⤵
      Program crash
      PID:3900
- - 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:5076
  - - 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:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3188 -ip 3188
1⤵
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 64 -ip 64
1⤵
PID:1188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 64 -ip 64
1⤵
PID:3392

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 116KB
SHA256 289b23bf0e2679eca7e139441c9ed51c3d2954bb2d21292b7bc46fa9df02b1b7
MD5 2444935ae693c7368337e025b30b0715
SHA1 4cbe24d229e07dc2724e1b47f5799699eb9adad1
SHA512 bbb1397e487e85c5bc24e1370ff615215d08e206cdcdc6353182960224ea03689ceeb0b0bd82422cef7ca3ada10d594a4ea7d210204b126682d131509c9362a2
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMb:P5eznsjsguGDFqGZ2rb
MD5 SHA1 SHA512 SSDEEP

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memory/64-21-0x0000000000400000-0x0000000000420000-memory.dmp

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memory/3584-17-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/3584-19-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/3584-28-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/3932-2-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/3932-1-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/3932-18-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/3932-0-0x00000000749F2000-0x00000000749F3000-memory.dmp

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memory/5076-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/5076-27-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/5076-29-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/5076-30-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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memory/5076-31-0x00000000749F0000-0x0000000074FA1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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