njrat | 6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb

General

Target

6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe
Size

23KB
MD5

156ec3242167a8c0659217d126c618a1
SHA1

4d935dbe314aca4dbddfb4e1d051c467f7d69696
SHA256

6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb
SHA512

042217a5793e67b029c6b5d5643f97ba63adfd960c4bdd27d6ce61fe6677c18aeda9a1e10a4af09aff6ceae0a093358b50226fff7ab4eeda0d44ed78b6215412
SSDEEP

384:QweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZtM:HLq411eRpcnut

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
824	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe

Executes dropped EXE 1 IoCs

pid	Process
400	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	6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe
Token: 33	400	server.exe
Token: SeIncBasePriorityPrivilege	400	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 400	4804	6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe	91
PID 4804 wrote to memory of 400	4804	6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe	91
PID 4804 wrote to memory of 400	4804	6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe	91
PID 400 wrote to memory of 824	400	server.exe	98
PID 400 wrote to memory of 824	400	server.exe	98
PID 400 wrote to memory of 824	400	server.exe	98

C:\Users\Admin\AppData\Local\Temp\6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe
"C:\Users\Admin\AppData\Local\Temp\6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:400
- - 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:824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

1

T1562.004

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
156ec3242167a8c0659217d126c618a1

SHA1
4d935dbe314aca4dbddfb4e1d051c467f7d69696

SHA256
6b4bbd9dba223a17b7d2d4c89d086133c8e42645a206b5015d6c356e2ca3d9eb

SHA512
042217a5793e67b029c6b5d5643f97ba63adfd960c4bdd27d6ce61fe6677c18aeda9a1e10a4af09aff6ceae0a093358b50226fff7ab4eeda0d44ed78b6215412

Download Submit
memory/400-13-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/400-14-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/400-15-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/400-16-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4804-0-0x0000000074D42000-0x0000000074D43000-memory.dmp

Filesize
4KB

Download
memory/4804-1-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4804-2-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download
memory/4804-12-0x0000000074D40000-0x00000000752F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads