njrat | 3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48d

General

Target

3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe
Size

23KB
MD5

696b12405c1c65d06b07019d4393d7f0
SHA1

684793b061900674b8aa2e054c1f6ded4e70eadf
SHA256

3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48d
SHA512

adf41772cb2c6d4b5da9b108a555e5dd0e1841b1fede6cb4ad7f3bf42532ec99a05af6d907cc8171ecce718cab7f8e5868eaa438251424c309b02b1a6ed47430
SSDEEP

384:qoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIz:N7O89p2rRpcnuV

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
3736	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:

3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid	Process
624	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\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

Processes:

netsh.exe

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

Processes:

server.exenetsh.exe3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe

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	3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

server.exe

description	pid	Process
Token: SeDebugPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe
Token: 33	624	server.exe
Token: SeIncBasePriorityPrivilege	624	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exeserver.exe

description	pid	Process	procid_target
PID 5000 wrote to memory of 624	5000	3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe	91
PID 5000 wrote to memory of 624	5000	3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe	91
PID 5000 wrote to memory of 624	5000	3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe	91
PID 624 wrote to memory of 3736	624	server.exe	99
PID 624 wrote to memory of 3736	624	server.exe	99
PID 624 wrote to memory of 3736	624	server.exe	99

C:\Users\Admin\AppData\Local\Temp\3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe
"C:\Users\Admin\AppData\Local\Temp\3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48dN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5000
- 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:624
- - 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:3736

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
696b12405c1c65d06b07019d4393d7f0

SHA1
684793b061900674b8aa2e054c1f6ded4e70eadf

SHA256
3186e13abff43557c88c7fd9e6b0b8fad37e6a9c547af66d2e657aa6a593f48d

SHA512
adf41772cb2c6d4b5da9b108a555e5dd0e1841b1fede6cb4ad7f3bf42532ec99a05af6d907cc8171ecce718cab7f8e5868eaa438251424c309b02b1a6ed47430

Download Submit
memory/624-13-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/624-15-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/624-14-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/624-16-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/5000-0-0x0000000074B42000-0x0000000074B43000-memory.dmp

Filesize
4KB

Download
memory/5000-1-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/5000-2-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/5000-12-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads