njrat | 58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157f

General

Target

58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe
Size

23KB
MD5

748ef33ecfae05ec3587ed482829c2e0
SHA1

47a39f6bb7552e11f2316aa71749454a4786a107
SHA256

58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157f
SHA512

cbedb455d7eaad3d0dcccb02fa72534f9c2cf7767ff0ce1aea1c37958c31d983608864b564be94a3571d9400bdf97844b1ecba5a0495fd110bafcf9fecc1a636
SSDEEP

384:jYmdk8XvCJrQLdRGSiEYF7Y65gPyx6BDXNRmRvR6JZlbw8hqIusZzZX4:swWkti/aeRpcnub

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
4292	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\334f132010bbc79a6e7c28a01892af18.exe	System.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\334f132010bbc79a6e7c28a01892af18.exe	System.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	System.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\334f132010bbc79a6e7c28a01892af18 = "\"C:\\Users\\Admin\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\334f132010bbc79a6e7c28a01892af18 = "\"C:\\Users\\Admin\\System.exe\" .."	System.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	58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe
Token: 33	2852	System.exe
Token: SeIncBasePriorityPrivilege	2852	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 2852	4940	58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe	93
PID 4940 wrote to memory of 2852	4940	58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe	93
PID 4940 wrote to memory of 2852	4940	58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe	93
PID 2852 wrote to memory of 4292	2852	System.exe	99
PID 2852 wrote to memory of 4292	2852	System.exe	99
PID 2852 wrote to memory of 4292	2852	System.exe	99

C:\Users\Admin\AppData\Local\Temp\58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe
"C:\Users\Admin\AppData\Local\Temp\58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157fN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Users\Admin\System.exe
  "C:\Users\Admin\System.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2852
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4292

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\System.exe

Filesize
23KB

MD5
748ef33ecfae05ec3587ed482829c2e0

SHA1
47a39f6bb7552e11f2316aa71749454a4786a107

SHA256
58a66474908933e642c0b35c117ef9f3d508b2f9f27f41e26ba37e3b5744157f

SHA512
cbedb455d7eaad3d0dcccb02fa72534f9c2cf7767ff0ce1aea1c37958c31d983608864b564be94a3571d9400bdf97844b1ecba5a0495fd110bafcf9fecc1a636

Download Submit
memory/2852-22-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2852-23-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2852-25-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4940-0-0x00000000746F2000-0x00000000746F3000-memory.dmp

Filesize
4KB

Download
memory/4940-1-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4940-2-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4940-21-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads