njrat | aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6

General

Target

aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe
Size

23KB
MD5

22af63c468011874892225dfa740fdbb
SHA1

30d08c2013486868af5cbbf2a2379edd2f57d3ac
SHA256

aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6
SHA512

b3c35e6c75e0e01ebb2e276bee32754611c7c9d025d55666861f7f7a9151182654559594ec85e854927935e151a6b079dd39859595bba82dc9ce7de01638a197
SSDEEP

384:qoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI1T:N7O89p2rRpcnu3T

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
5052	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe

Executes dropped EXE 1 IoCs

pid	Process
4512	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-1-5-21-2437139445-1151884604-3026847218-1000\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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe
Token: 33	4512	server.exe
Token: SeIncBasePriorityPrivilege	4512	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 4512	5088	aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe	85
PID 5088 wrote to memory of 4512	5088	aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe	85
PID 5088 wrote to memory of 4512	5088	aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe	85
PID 4512 wrote to memory of 5052	4512	server.exe	86
PID 4512 wrote to memory of 5052	4512	server.exe	86
PID 4512 wrote to memory of 5052	4512	server.exe	86

C:\Users\Admin\AppData\Local\Temp\aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe
"C:\Users\Admin\AppData\Local\Temp\aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5088
- 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:4512
- - 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:5052

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
22af63c468011874892225dfa740fdbb

SHA1
30d08c2013486868af5cbbf2a2379edd2f57d3ac

SHA256
aab4bbb4b5d54e94c36586ddbe9c52b4911e631f41db792f19ac42cab42dc0c6

SHA512
b3c35e6c75e0e01ebb2e276bee32754611c7c9d025d55666861f7f7a9151182654559594ec85e854927935e151a6b079dd39859595bba82dc9ce7de01638a197

Download Submit
memory/4512-12-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/4512-14-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/4512-15-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/5088-0-0x0000000075422000-0x0000000075423000-memory.dmp

Filesize
4KB

Download
memory/5088-1-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/5088-2-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/5088-13-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads