njrat | 68ea9901913dcf4a5e41d1c25f98ad33032d3649d4496b71df6bf0935d9ac5e7

General

Target

Server.exe
Size

23KB
MD5

cb5828ff44cabf7101a23e21c11b972b
SHA1

80f5fe5f16d85c8bcf6ad004c79bb8de2504273c
SHA256

68ea9901913dcf4a5e41d1c25f98ad33032d3649d4496b71df6bf0935d9ac5e7
SHA512

594226a3db27fae1c87ca8fd123975f0be280da5351d86945c923b9fdc8e3362beafb7c801e02212bdbd5ca30948da9edc0e625c9d1c4b1c1a834b6a78f4b460
SSDEEP

384:boWSkWHa55BgDVRGipkItzY6FZg36Eh7FpmRvR6JZlbw8hqIusZzZAy:0Juk9ptRpcnuQ

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

ahmeddx0.linkpc.net:5552

Mutex

5fb3d6ac2e5ec4068fb3d8086a910d93

Attributes

reg_key
5fb3d6ac2e5ec4068fb3d8086a910d93
splitter
|'|'|

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
2812	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5fb3d6ac2e5ec4068fb3d8086a910d93.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5fb3d6ac2e5ec4068fb3d8086a910d93.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1880	server.exe

Loads dropped DLL 1 IoCs

pid	Process
892	Server.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\5fb3d6ac2e5ec4068fb3d8086a910d93 = "\"C:\\Users\\Admin\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5fb3d6ac2e5ec4068fb3d8086a910d93 = "\"C:\\Users\\Admin\\server.exe\" .."	server.exe

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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	Server.exe
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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe
Token: 33	1880	server.exe
Token: SeIncBasePriorityPrivilege	1880	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 1880	892	Server.exe	31
PID 892 wrote to memory of 1880	892	Server.exe	31
PID 892 wrote to memory of 1880	892	Server.exe	31
PID 892 wrote to memory of 1880	892	Server.exe	31
PID 1880 wrote to memory of 2812	1880	server.exe	32
PID 1880 wrote to memory of 2812	1880	server.exe	32
PID 1880 wrote to memory of 2812	1880	server.exe	32
PID 1880 wrote to memory of 2812	1880	server.exe	32

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:892
- C:\Users\Admin\server.exe
  "C:\Users\Admin\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1880
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\server.exe

Filesize
23KB

MD5
cb5828ff44cabf7101a23e21c11b972b

SHA1
80f5fe5f16d85c8bcf6ad004c79bb8de2504273c

SHA256
68ea9901913dcf4a5e41d1c25f98ad33032d3649d4496b71df6bf0935d9ac5e7

SHA512
594226a3db27fae1c87ca8fd123975f0be280da5351d86945c923b9fdc8e3362beafb7c801e02212bdbd5ca30948da9edc0e625c9d1c4b1c1a834b6a78f4b460

Download Submit
memory/892-0-0x0000000074541000-0x0000000074542000-memory.dmp

Filesize
4KB

Download
memory/892-1-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/892-2-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/892-11-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/1880-12-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/1880-10-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download
memory/1880-14-0x0000000074540000-0x0000000074AEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads