njrat | 82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75

General

Target

82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe
Size

23KB
MD5

5a688757f3c2e5d138fa34068364eba0
SHA1

456da64eec54bb6af96ed6622465a971f297691e
SHA256

82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75
SHA512

cf1e6d7002d775360fd6facc02a6a9bbd67b56725fdbd320b244957be6038847cde90471674e15591e8255e38fc1cad2e4aae1d2469a64423724bb29fd040a55
SSDEEP

384:ZoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIc:u7O89p2rRpcnui

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

pid	Process
3908	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\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 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	82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.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 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe
Token: 33	2740	server.exe
Token: SeIncBasePriorityPrivilege	2740	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 2740	3616	82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe	94
PID 3616 wrote to memory of 2740	3616	82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe	94
PID 3616 wrote to memory of 2740	3616	82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe	94
PID 2740 wrote to memory of 3908	2740	server.exe	98
PID 2740 wrote to memory of 3908	2740	server.exe	98
PID 2740 wrote to memory of 3908	2740	server.exe	98

C:\Users\Admin\AppData\Local\Temp\82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe
"C:\Users\Admin\AppData\Local\Temp\82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3616
- 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:2740
- - 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:3908

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
5a688757f3c2e5d138fa34068364eba0

SHA1
456da64eec54bb6af96ed6622465a971f297691e

SHA256
82bbe6a6bbcf41a61cc5bd3ba07db955052340f011fa7ccdebf3c140fa898c75

SHA512
cf1e6d7002d775360fd6facc02a6a9bbd67b56725fdbd320b244957be6038847cde90471674e15591e8255e38fc1cad2e4aae1d2469a64423724bb29fd040a55

Download Submit
memory/2740-13-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/2740-14-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/2740-15-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/2740-16-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/3616-0-0x0000000074AB2000-0x0000000074AB3000-memory.dmp

Filesize
4KB

Download
memory/3616-1-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/3616-2-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/3616-12-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads