njrat | a73f7e943e0e64e0b56d76c49f37af92fcade426b17523d326ee34b2b084148b

Analysis

max time kernel
150s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
06/10/2025, 07:58

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General

Target
Server.exe
Size 37KB
Sample251006-jtztqaxtat
SHA256 a73f7e943e0e64e0b56d76c49f37af92fcade426b17523d326ee34b2b084148b
MD5 a5e5fec1ba60d47115aba4b37ecd8458
SHA1 53490134426afa472d8073ebfbb3ed330452f217
SHA512 bf9cd66421de15502920d8d1348bc174fc1e0ec8901ac5a879c4d72e60267a6eebe5fd3aef89474b2747e274573f40f1ca4b0fe4faeec63f943259b624ba9eef
SSDEEP 384:zd4Nb7LsikZ9zNf/1uyU71evdL9sOaPJrAF+rMRTyN/0L+EcoinblneHQM3epzX4:SNf4l1lU71eZ9FaxrM+rMRa8NutMt
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

hacked defense_evasion discovery njrat persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

lsoj0-51746.portmap.host:51746

Mutex

a417975443fe2f124ddb6f93ff249af4

Attributes

reg_key
a417975443fe2f124ddb6f93ff249af4
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5264	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
692	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-1-5-21-625765727-1271952295-745797415-1000\Software\Microsoft\Windows\CurrentVersion\Run\a417975443fe2f124ddb6f93ff249af4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a417975443fe2f124ddb6f93ff249af4 = "\"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 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe
Token: 33	5260	Server.exe
Token: SeIncBasePriorityPrivilege	5260	Server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5260 wrote to memory of 5264	5260	Server.exe	79
PID 5260 wrote to memory of 5264	5260	Server.exe	79
PID 5260 wrote to memory of 5264	5260	Server.exe	79
PID 924 wrote to memory of 692	924	cmd.exe	83
PID 924 wrote to memory of 692	924	cmd.exe	83
PID 924 wrote to memory of 692	924	cmd.exe	83

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:5260
- 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:5264

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Server.exe" ..
1⤵
- Suspicious use of WriteProcessMemory
PID:924
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp\Server.exe ..
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:692

Network

MITRE ATT&CK Enterprise v16

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

Server.exe

Path C:\Users\Admin\AppData\Local\Temp\Server.exe
Size 37KB
SHA256 a73f7e943e0e64e0b56d76c49f37af92fcade426b17523d326ee34b2b084148b
MD5 a5e5fec1ba60d47115aba4b37ecd8458
SHA1 53490134426afa472d8073ebfbb3ed330452f217
SHA512 bf9cd66421de15502920d8d1348bc174fc1e0ec8901ac5a879c4d72e60267a6eebe5fd3aef89474b2747e274573f40f1ca4b0fe4faeec63f943259b624ba9eef
SSDEEP 384:zd4Nb7LsikZ9zNf/1uyU71evdL9sOaPJrAF+rMRTyN/0L+EcoinblneHQM3epzX4:SNf4l1lU71eZ9FaxrM+rMRa8NutMt
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/692-3-0x0000000074F30000-0x00000000754E1000-memory.dmp

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memory/692-4-0x0000000074F30000-0x00000000754E1000-memory.dmp

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memory/692-7-0x0000000074F30000-0x00000000754E1000-memory.dmp

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memory/5260-0-0x0000000074F31000-0x0000000074F32000-memory.dmp

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memory/5260-1-0x0000000074F30000-0x00000000754E1000-memory.dmp

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memory/5260-5-0x0000000074F30000-0x00000000754E1000-memory.dmp

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memory/5260-8-0x0000000074F30000-0x00000000754E1000-memory.dmp

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memory/5260-9-0x0000000074F30000-0x00000000754E1000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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