njrat | 5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1

General

Target

5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe
Size

23KB
MD5

f270f041ab3607a66d0f0e641ba45670
SHA1

c358d95f5eb1581fd01c5e6f17aed6ccfd255568
SHA256

5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1
SHA512

249eff439fe345e0a0980682e6e15b84057cd208436c4be6324d4801d87ef167f66fab97a53622c8709d93eb0441a5b0fbd317e4549b05d54a26ef76db81fc0f
SSDEEP

384:Kwz6+T4IjWZFNwXU0eiNUBdvt6lgT+lLOhXxQmRvR6JZlbw8hqIusZzZgy:pTbC81NgRpcnuM

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
4960	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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\137dde66f92b5e67080696d92bea7f25.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\137dde66f92b5e67080696d92bea7f25.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
4776	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-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\137dde66f92b5e67080696d92bea7f25 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\137dde66f92b5e67080696d92bea7f25 = "\"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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe
Token: 33	4776	server.exe
Token: SeIncBasePriorityPrivilege	4776	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 4776	4568	5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe	89
PID 4568 wrote to memory of 4776	4568	5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe	89
PID 4568 wrote to memory of 4776	4568	5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe	89
PID 4776 wrote to memory of 4960	4776	server.exe	93
PID 4776 wrote to memory of 4960	4776	server.exe	93
PID 4776 wrote to memory of 4960	4776	server.exe	93

C:\Users\Admin\AppData\Local\Temp\5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe
"C:\Users\Admin\AppData\Local\Temp\5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:4776
- - 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:4960

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
23KB

MD5
f270f041ab3607a66d0f0e641ba45670

SHA1
c358d95f5eb1581fd01c5e6f17aed6ccfd255568

SHA256
5de1c86bbf0d53ddf515d5fb881a204b3c940532f8ed315eff00ccedca4d4ea1

SHA512
249eff439fe345e0a0980682e6e15b84057cd208436c4be6324d4801d87ef167f66fab97a53622c8709d93eb0441a5b0fbd317e4549b05d54a26ef76db81fc0f

Download Submit
memory/4568-0-0x0000000074DE2000-0x0000000074DE3000-memory.dmp

Filesize
4KB

Download
memory/4568-1-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4568-2-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4568-12-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4776-13-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4776-14-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4776-16-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads