njrat | ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036

Analysis

max time kernel
150s
max time network
131s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 01:34

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General

Target

ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
Size

919KB
MD5

50869953a5371852ab8938a81a11a257
SHA1

69d8d1d5d655c83ee0e2596318d34c7541c313b0
SHA256

ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036
SHA512

bcebfd28d5be0fde675cddc04ec5af953e89a85dd1cc46cffec5bf601d574a0080b8414ade14195208f87f9dfba11d1d0fe5cf0faa2ed9eb4210012384ba8ba5
SSDEEP

24576:RAHnh+eWsN3skA4RV1Hom2KXMmHapLUsQ5h:oh+ZkldoPK8Yap6h

Score

10^/10

njrat fourth#4 discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

fourth#4

soft98.linkpc.net:5550

Mutex

10e93180d6481ad63a77c2b255d40864

Attributes

reg_key
10e93180d6481ad63a77c2b255d40864
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
1848	netsh.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host Process for Windows Services.url	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30

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 3 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	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe
Token: 33	3056	RegAsm.exe
Token: SeIncBasePriorityPrivilege	3056	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3044 wrote to memory of 3056	3044	ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe	30
PID 3056 wrote to memory of 1848	3056	RegAsm.exe	32
PID 3056 wrote to memory of 1848	3056	RegAsm.exe	32
PID 3056 wrote to memory of 1848	3056	RegAsm.exe	32
PID 3056 wrote to memory of 1848	3056	RegAsm.exe	32

C:\Users\Admin\AppData\Local\Temp\ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe
"C:\Users\Admin\AppData\Local\Temp\ce85d8a497b743f360c7d84d0104b2fa859da583acec0f168560144084ac3036.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

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

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3044-0-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/3056-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3056-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3056-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3056-3-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3056-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3056-11-0x00000000741C2000-0x00000000741C4000-memory.dmp

Filesize
8KB

Download
memory/3056-12-0x00000000741C2000-0x00000000741C4000-memory.dmp

Filesize
8KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads