njrat | 545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92

General

Target

545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.exe
Size

257KB
MD5

77242a466504bd3927ff85fe230a6d90
SHA1

30d335e6c0525044e7ab6196d3f202dd64db6e57
SHA256

545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92
SHA512

48272a63b1115c447509e81311b700b334f2cd5bb2a701280b2414d5e12d9159c6f8cdf01e80ab9e5877741d7b6584979376d15271cfe6efd0c341238cc24290
SSDEEP

6144:vY4AymXSWEM1TOzeUh6+/Igohbkk5S98B:v7S5H1izlX9oOGB

Score

10^/10

njrat defense_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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2656	netsh.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2764	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2600	545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.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\def9b6cd3f2b0c43097dfbc918862b82 = "C:\\Users\\Admin\\AppData\\Roaming\\server.exe"	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\def9b6cd3f2b0c43097dfbc918862b82 = "C:\\Users\\Admin\\AppData\\Roaming\\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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 30 IoCs

description	pid	Process
Token: SeCreateTokenPrivilege	2764	server.exe
Token: SeAssignPrimaryTokenPrivilege	2764	server.exe
Token: SeLockMemoryPrivilege	2764	server.exe
Token: SeIncreaseQuotaPrivilege	2764	server.exe
Token: 0	2764	server.exe
Token: SeMachineAccountPrivilege	2764	server.exe
Token: SeTcbPrivilege	2764	server.exe
Token: SeSecurityPrivilege	2764	server.exe
Token: SeTakeOwnershipPrivilege	2764	server.exe
Token: SeLoadDriverPrivilege	2764	server.exe
Token: SeSystemProfilePrivilege	2764	server.exe
Token: SeSystemtimePrivilege	2764	server.exe
Token: SeProfSingleProcessPrivilege	2764	server.exe
Token: SeIncBasePriorityPrivilege	2764	server.exe
Token: SeCreatePagefilePrivilege	2764	server.exe
Token: SeCreatePermanentPrivilege	2764	server.exe
Token: SeBackupPrivilege	2764	server.exe
Token: SeRestorePrivilege	2764	server.exe
Token: SeShutdownPrivilege	2764	server.exe
Token: SeDebugPrivilege	2764	server.exe
Token: SeAuditPrivilege	2764	server.exe
Token: SeSystemEnvironmentPrivilege	2764	server.exe
Token: SeChangeNotifyPrivilege	2764	server.exe
Token: SeRemoteShutdownPrivilege	2764	server.exe
Token: SeUndockPrivilege	2764	server.exe
Token: SeSyncAgentPrivilege	2764	server.exe
Token: SeEnableDelegationPrivilege	2764	server.exe
Token: SeManageVolumePrivilege	2764	server.exe
Token: SeImpersonatePrivilege	2764	server.exe
Token: SeCreateGlobalPrivilege	2764	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2764	2600	545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.exe	31
PID 2600 wrote to memory of 2764	2600	545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.exe	31
PID 2600 wrote to memory of 2764	2600	545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.exe	31
PID 2764 wrote to memory of 2656	2764	server.exe	33
PID 2764 wrote to memory of 2656	2764	server.exe	33
PID 2764 wrote to memory of 2656	2764	server.exe	33

C:\Users\Admin\AppData\Local\Temp\545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.exe
"C:\Users\Admin\AppData\Local\Temp\545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Roaming\server.exe
  C:\Users\Admin\AppData\Roaming\server.exe
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram C:\Users\Admin\AppData\Roaming\server.exe "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2656

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\server.exe

Filesize
257KB

MD5
77242a466504bd3927ff85fe230a6d90

SHA1
30d335e6c0525044e7ab6196d3f202dd64db6e57

SHA256
545e859b915fecc8c9d2130d9dc8901805f73105679f10051b0d12c5328c1e92

SHA512
48272a63b1115c447509e81311b700b334f2cd5bb2a701280b2414d5e12d9159c6f8cdf01e80ab9e5877741d7b6584979376d15271cfe6efd0c341238cc24290

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads