njrat | 3019fda818a194c3ddf732ef2ba9741d28fa0663fa89951ae59319dfc74e53cd

General

Target
54151a845b9bb08ae123740031b0d9f0N.exe
Size 23KB
Sample240911-ph4w7azdmp
SHA256 3019fda818a194c3ddf732ef2ba9741d28fa0663fa89951ae59319dfc74e53cd
MD5 54151a845b9bb08ae123740031b0d9f0
SHA1 402897de85097d0dd28e1410e65a8830be61f59e
SHA512 5e208bfdf2bb04b17416f4ea4ece5a7f968aded968cf6adf0a0ba08405599e3c4292bee9d940d8e187f13f2bd7c0a6d3a375cf3ab18fca9cf2f66b1900d29a4e
SSDEEP 384:qoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI0:N7O89p2rRpcnuC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
3288	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	54151a845b9bb08ae123740031b0d9f0N.exe

Executes dropped EXE 1 IoCs

pid	Process
732	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	54151a845b9bb08ae123740031b0d9f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe
Token: 33	732	server.exe
Token: SeIncBasePriorityPrivilege	732	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 732	4972	54151a845b9bb08ae123740031b0d9f0N.exe	91
PID 4972 wrote to memory of 732	4972	54151a845b9bb08ae123740031b0d9f0N.exe	91
PID 4972 wrote to memory of 732	4972	54151a845b9bb08ae123740031b0d9f0N.exe	91
PID 732 wrote to memory of 3288	732	server.exe	95
PID 732 wrote to memory of 3288	732	server.exe	95
PID 732 wrote to memory of 3288	732	server.exe	95

C:\Users\Admin\AppData\Local\Temp\54151a845b9bb08ae123740031b0d9f0N.exe
"C:\Users\Admin\AppData\Local\Temp\54151a845b9bb08ae123740031b0d9f0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:732
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3288

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

Query Registry

1

T1012

System Information Discovery

2

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

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 23KB
SHA256 3019fda818a194c3ddf732ef2ba9741d28fa0663fa89951ae59319dfc74e53cd
MD5 54151a845b9bb08ae123740031b0d9f0
SHA1 402897de85097d0dd28e1410e65a8830be61f59e
SHA512 5e208bfdf2bb04b17416f4ea4ece5a7f968aded968cf6adf0a0ba08405599e3c4292bee9d940d8e187f13f2bd7c0a6d3a375cf3ab18fca9cf2f66b1900d29a4e
SSDEEP 384:qoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI0:N7O89p2rRpcnuC
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/732-13-0x0000000074C40000-0x00000000751F1000-memory.dmp

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memory/732-14-0x0000000074C40000-0x00000000751F1000-memory.dmp

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memory/732-15-0x0000000074C40000-0x00000000751F1000-memory.dmp

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memory/4972-0-0x0000000074C42000-0x0000000074C43000-memory.dmp

Download

memory/4972-1-0x0000000074C40000-0x00000000751F1000-memory.dmp

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memory/4972-2-0x0000000074C40000-0x00000000751F1000-memory.dmp

Download

memory/4972-12-0x0000000074C40000-0x00000000751F1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads