njrat | 7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449

General

Target

7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe
Size

23KB
MD5

e9c7dd393dee3367ec1c30c838c0e2e0
SHA1

5848612cfe878af436fa4b0f4220b16c5e0b6fa0
SHA256

7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449
SHA512

db4b889d88b73eab5259dd51b4adc6b806cce2bdca5fa40adcbdd989db3c1a9bca79db263e19aaa2da4570ba4db108285e79d86f4c8594b2be0b66f9bd429f45
SSDEEP

384:9oWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIo:i7O89p2rRpcnuu

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
4216	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe

Executes dropped EXE 1 IoCs

pid	Process
4696	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-1-5-21-945322488-2060912225-3527527000-1000\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

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	7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe
Token: 33	4696	server.exe
Token: SeIncBasePriorityPrivilege	4696	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 4696	3676	7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe	82
PID 3676 wrote to memory of 4696	3676	7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe	82
PID 3676 wrote to memory of 4696	3676	7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe	82
PID 4696 wrote to memory of 4216	4696	server.exe	85
PID 4696 wrote to memory of 4216	4696	server.exe	85
PID 4696 wrote to memory of 4216	4696	server.exe	85

C:\Users\Admin\AppData\Local\Temp\7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe
"C:\Users\Admin\AppData\Local\Temp\7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3676
- 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:4696
- - 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:4216

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
e9c7dd393dee3367ec1c30c838c0e2e0

SHA1
5848612cfe878af436fa4b0f4220b16c5e0b6fa0

SHA256
7d4cf2d2eb4ce89c7a1d17bf3d29443bc5e6f4ccc7bd5ea42e980cc672385449

SHA512
db4b889d88b73eab5259dd51b4adc6b806cce2bdca5fa40adcbdd989db3c1a9bca79db263e19aaa2da4570ba4db108285e79d86f4c8594b2be0b66f9bd429f45

Download Submit
memory/3676-0-0x0000000075342000-0x0000000075343000-memory.dmp

Filesize
4KB

Download
memory/3676-1-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/3676-2-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/3676-13-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4696-12-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4696-14-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4696-15-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads