njrat | dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63

General

Target

dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe
Size

23KB
MD5

73227233ab2bd7806dc87619e618867b
SHA1

6378f9938a55186ad02877d99c1fb04b81b20a9e
SHA256

dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63
SHA512

f756499d407abe076344fee1b51d86aff337f4a37306c755f87df5f0eb6c90f445fca39e0323fd1311951c8a2b6b1beca1d61c0b5d9fd05d0d9705978e83d5dd
SSDEEP

384:nGwz6+T4IjWZFNwXU0eiNUB4vt6lgT+lLOhXxQmRvR6JZlbw8hqIusZzZKn:1TbC81NbRpcnub

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
2500	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:

dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid	Process
1864	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b5981a4b94d20b88e92909f65ce364f8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b5981a4b94d20b88e92909f65ce364f8 = "\"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:

dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exeserver.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.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 35 IoCs

Processes:

server.exe

description	pid	Process
Token: SeDebugPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe
Token: 33	1864	server.exe
Token: SeIncBasePriorityPrivilege	1864	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exeserver.exe

description	pid	Process	procid_target
PID 436 wrote to memory of 1864	436	dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe	82
PID 436 wrote to memory of 1864	436	dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe	82
PID 436 wrote to memory of 1864	436	dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe	82
PID 1864 wrote to memory of 2500	1864	server.exe	87
PID 1864 wrote to memory of 2500	1864	server.exe	87
PID 1864 wrote to memory of 2500	1864	server.exe	87

C:\Users\Admin\AppData\Local\Temp\dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe
"C:\Users\Admin\AppData\Local\Temp\dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:436
- 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:1864
- - 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:2500

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
73227233ab2bd7806dc87619e618867b

SHA1
6378f9938a55186ad02877d99c1fb04b81b20a9e

SHA256
dae3d1b1657c507b739b29ef31f6f13852ab4c67bc57ebe2a8e088dc1571dd63

SHA512
f756499d407abe076344fee1b51d86aff337f4a37306c755f87df5f0eb6c90f445fca39e0323fd1311951c8a2b6b1beca1d61c0b5d9fd05d0d9705978e83d5dd

Download Submit
memory/436-0-0x00000000752B2000-0x00000000752B3000-memory.dmp

Filesize
4KB

Download
memory/436-1-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/436-2-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/436-12-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/1864-13-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/1864-14-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download
memory/1864-15-0x00000000752B0000-0x0000000075861000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads