njrat | 1a8708424a44533f524fbf76276737e69d4f97588dd8b4a80f78b22e87b9cf2e

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-09-2024 01:10

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General

Target

e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe
Size

327KB
MD5

e80ae0e554e1e50e1729d3fbbf717624
SHA1

4a076b65726174302480f48384b125444b36a309
SHA256

1a8708424a44533f524fbf76276737e69d4f97588dd8b4a80f78b22e87b9cf2e
SHA512

fe62541b548783d4c9d61891325305beef11569595ffcd5b989523ad07e195f8f01de740a727c113a75aadc1aeb6d06a04f4f44dc5b5b2483b0143db504ca58c
SSDEEP

3072:j6TeodPeygFKkDwG+K2c2ZLRU3y/Xes1AQ7/oGOcHYl6kweaDjBwA4YDqsVfrih:js9CKMQDneUA6HYQrdHZ2sVjih

Score

10^/10

njrat hacked discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

windowsdotnet.ddns.net:1700

Mutex

5bbde28dd0efc1008f97de5aa76d7b7c

Attributes

reg_key
5bbde28dd0efc1008f97de5aa76d7b7c
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
1960	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5bbde28dd0efc1008f97de5aa76d7b7c.exe	RegAsm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5bbde28dd0efc1008f97de5aa76d7b7c.exe	RegAsm.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5bbde28dd0efc1008f97de5aa76d7b7c = "\"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe\" .."	RegAsm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\mgjgfb ccsaiod = "C:\\Program Files (x86)\\dhawvpc hkktniwnk\\hamtm sedbnu.exe"	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\5bbde28dd0efc1008f97de5aa76d7b7c = "\"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe\" .."	RegAsm.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2332	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\dhawvpc hkktniwnk\hamtm sedbnu.exe	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	RegAsm.exe

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 2 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe
2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe
2332	powershell.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe
2512	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2512	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe
Token: 33	2512	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2512	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2332	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2332	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2332	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2716	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2380 wrote to memory of 2512	2380	e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe	33
PID 2512 wrote to memory of 1960	2512	RegAsm.exe	34
PID 2512 wrote to memory of 1960	2512	RegAsm.exe	34
PID 2512 wrote to memory of 1960	2512	RegAsm.exe	34
PID 2512 wrote to memory of 1960	2512	RegAsm.exe	34

C:\Users\Admin\AppData\Local\Temp\e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e80ae0e554e1e50e1729d3fbbf717624_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'mgjgfb ccsaiod';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'mgjgfb ccsaiod' -Value '"C:\Program Files (x86)\dhawvpc hkktniwnk\hamtm sedbnu.exe"' -PropertyType 'String'
  2⤵
  - Adds Run key to start application
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2332-24-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2332-31-0x000007FEED360000-0x000007FEEDCFD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-30-0x000007FEED360000-0x000007FEEDCFD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-29-0x000007FEED360000-0x000007FEEDCFD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-27-0x000007FEED360000-0x000007FEEDCFD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-28-0x000007FEED360000-0x000007FEEDCFD000-memory.dmp

Filesize
9.6MB

Download
memory/2332-25-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2332-12-0x000007FEED61E000-0x000007FEED61F000-memory.dmp

Filesize
4KB

Download
memory/2380-6-0x0000000000370000-0x0000000000382000-memory.dmp

Filesize
72KB

Download
memory/2380-26-0x000007FEF50D0000-0x000007FEF5ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2380-1-0x0000000001150000-0x00000000011A8000-memory.dmp

Filesize
352KB

Download
memory/2380-2-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/2380-3-0x000007FEF50D0000-0x000007FEF5ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2380-4-0x000007FEF50D3000-0x000007FEF50D4000-memory.dmp

Filesize
4KB

Download
memory/2380-5-0x000007FEF50D0000-0x000007FEF5ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2380-0-0x000007FEF50D3000-0x000007FEF50D4000-memory.dmp

Filesize
4KB

Download
memory/2512-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2512-13-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-15-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-16-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-17-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download