njrat | d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 11:03

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General

Target

Server.exe
Size

23KB
MD5

a7a2022d715b3ecb85ea55de936f011b
SHA1

0200512447f2e95d1675b1833d008ea4a7ddaa94
SHA256

d5eaaa22cd69c6ddf1da7b0c8bd0cabbcda679810ed2d95839c08244235fbf81
SHA512

7a0910ef562cb5936ab94fa94dce05eec2d6add7d6c3be3e8ad79a9710bc4fc283aec2d2f20dc6d4b0d641df5a8b1e368e6438f8e04c8f24a61b262d60ce5901
SSDEEP

384:KY324bcgPiJLQrfARGSRUJsbY6vgvSMBD3t8mRvR6JZlbw8hqIusZzZMT:dL2s+tRARpcnu1

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat
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
2248	netsh.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\42db17215651017a223d2108cb096394 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\42db17215651017a223d2108cb096394 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe
Token: 33	2840	Server.exe
Token: SeIncBasePriorityPrivilege	2840	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2248	2840	Server.exe	30
PID 2840 wrote to memory of 2248	2840	Server.exe	30
PID 2840 wrote to memory of 2248	2840	Server.exe	30
PID 2840 wrote to memory of 2248	2840	Server.exe	30

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2248

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2840-0-0x0000000074741000-0x0000000074742000-memory.dmp

Filesize
4KB

Download
memory/2840-1-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/2840-2-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/2840-3-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/2840-4-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads