njrat | 1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98

General

Target

1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe
Size

23KB
MD5

a7930005f1d8bdda2e3491cc36b59237
SHA1

61dfc83d5d47476c1d9e63d6123c0f6549a08128
SHA256

1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98
SHA512

f03c859148f63fcd6d3518633e702f214d1efde5e00b6d8f9f9b5fca33c5f81b00d472a410f0fd3731d87cb9c7b4d98b7624e24a0f652191b7bd799e514e9605
SSDEEP

384:cQ+ILgIbOprgPsUOSU0kB1kd6dg7GYh/JomRvR6JZlbw8hqIusZzZ8l:PLL6MVU0NRpcnuD

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

Processes:

netsh.exe

pid	Process
3484	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

Processes:

1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid	Process
2260	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f1704578a45e4f31d07c6bcbe412c8eb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f1704578a45e4f31d07c6bcbe412c8eb = "\"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

Processes:

netsh.exe

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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

Processes:

1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exeserver.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.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

Processes:

server.exe

description	pid	Process
Token: SeDebugPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe
Token: 33	2260	server.exe
Token: SeIncBasePriorityPrivilege	2260	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exeserver.exe

description	pid	Process	procid_target
PID 4856 wrote to memory of 2260	4856	1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe	86
PID 4856 wrote to memory of 2260	4856	1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe	86
PID 4856 wrote to memory of 2260	4856	1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe	86
PID 2260 wrote to memory of 3484	2260	server.exe	90
PID 2260 wrote to memory of 3484	2260	server.exe	90
PID 2260 wrote to memory of 3484	2260	server.exe	90

C:\Users\Admin\AppData\Local\Temp\1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe
"C:\Users\Admin\AppData\Local\Temp\1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4856
- 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:2260
- - 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:3484

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

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
a7930005f1d8bdda2e3491cc36b59237

SHA1
61dfc83d5d47476c1d9e63d6123c0f6549a08128

SHA256
1f2700987cf9d919c85e0bf6ad9b64237e99d52b7d71d1a90b942eb481b4bd98

SHA512
f03c859148f63fcd6d3518633e702f214d1efde5e00b6d8f9f9b5fca33c5f81b00d472a410f0fd3731d87cb9c7b4d98b7624e24a0f652191b7bd799e514e9605

Download Submit
memory/2260-12-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/2260-14-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/2260-15-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/2260-16-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/2260-17-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-0-0x0000000075332000-0x0000000075333000-memory.dmp

Filesize
4KB

Download
memory/4856-1-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-2-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download
memory/4856-13-0x0000000075330000-0x00000000758E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads