njrat | 5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf

General

Target

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe
Size

23KB
MD5

3549c51a0c4799dc7c7a6a69e1a708a8
SHA1

d8e7d428b90a8e596a9615ba1c43780bbe93e655
SHA256

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf
SHA512

f67f6567056a51ce032ea6889d602835d273672328ebdad5fd228a658bf0b3e5a5b24edd6cd955620235e14adf8bbb0d315b1ed2e2ea15f431c4ca9d34259e25
SSDEEP

384:jYmdk8XvCJrQLdRGSiEYF7Y65gPyx6BDXNRmRvR6JZlbw8hqIusZzZX4x:swWkti/aeRpcnubx

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
2244	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4780	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-1-5-21-940901362-3608833189-1915618603-1000\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 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	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe
Token: 33	4780	System.exe
Token: SeIncBasePriorityPrivilege	4780	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 4780	2440	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	89
PID 2440 wrote to memory of 4780	2440	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	89
PID 2440 wrote to memory of 4780	2440	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	89
PID 4780 wrote to memory of 2244	4780	System.exe	96
PID 4780 wrote to memory of 2244	4780	System.exe	96
PID 4780 wrote to memory of 2244	4780	System.exe	96

C:\Users\Admin\AppData\Local\Temp\5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe
"C:\Users\Admin\AppData\Local\Temp\5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- 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:4780
- - 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:2244

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
3549c51a0c4799dc7c7a6a69e1a708a8

SHA1
d8e7d428b90a8e596a9615ba1c43780bbe93e655

SHA256
5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf

SHA512
f67f6567056a51ce032ea6889d602835d273672328ebdad5fd228a658bf0b3e5a5b24edd6cd955620235e14adf8bbb0d315b1ed2e2ea15f431c4ca9d34259e25

Download Submit
memory/2440-0-0x0000000074FC2000-0x0000000074FC3000-memory.dmp

Filesize
4KB

Download
memory/2440-1-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/2440-2-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/2440-21-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4780-22-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4780-24-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4780-23-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download
memory/4780-26-0x0000000074FC0000-0x0000000075571000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads