njrat | 37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b

General

Target

37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
Size

863KB
MD5

cf620f72719d99e50a6a709fd6518f5c
SHA1

fc4263088c1a08d73cc4ff2f50b7d4e0637f42b5
SHA256

37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b
SHA512

2114b8976f4338a002be4ccb4ca2bb3c9e72b474af2f781c5a5b47908135680f47a0735e301dd9cb46da4046645d6e2fbef1fd7e03c123be12f9e8a99f677f03
SSDEEP

12288:q4lsXvtCcmVVXzzn4PJAahPl/QEdIMiVbHydEIJnJWUgav7o6Fq9MmCSm:q4lavt0LkLL9IMixoEgeajBFq9MmCSm

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe

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
4300	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	7069.exe

Executes dropped EXE 2 IoCs

pid	Process
4860	7069.exe
2616	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.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 4 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	7069.exe
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	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe
Token: 33	2616	server.exe
Token: SeIncBasePriorityPrivilege	2616	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 4860	4588	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe	82
PID 4588 wrote to memory of 4860	4588	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe	82
PID 4588 wrote to memory of 4860	4588	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe	82
PID 4860 wrote to memory of 2616	4860	7069.exe	89
PID 4860 wrote to memory of 2616	4860	7069.exe	89
PID 4860 wrote to memory of 2616	4860	7069.exe	89
PID 2616 wrote to memory of 4300	2616	server.exe	92
PID 2616 wrote to memory of 4300	2616	server.exe	92
PID 2616 wrote to memory of 4300	2616	server.exe	92

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe

C:\Users\Admin\AppData\Local\Temp\37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
"C:\Users\Admin\AppData\Local\Temp\37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe"
1⤵
- UAC bypass
- Checks computer location settings
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4588
- C:\Users\Admin\AppData\Local\Temp\7069\7069.exe
  "C:\Users\Admin\AppData\Local\Temp\7069\7069.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4860
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2616
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4300

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\7069\7069.exe

Filesize
23KB

MD5
87ecb116057477202650a2a1527a19db

SHA1
9b73ea528f3020eba4ebdc1a6d03ca62b9ba70e2

SHA256
94626eea10b73145b62654f4dcd1c2157137bf3a3abbbb666167f480e516976c

SHA512
2775e891a5f7cbab7d7f2847f424514ceebd1b3d6e0ae939db379bddc9eaec4cb207455c126646164951fed43585b93ae31b9a6957721255a7c413254ce11193

Download Submit
memory/2616-21-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download
memory/2616-23-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download
memory/2616-24-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download
memory/2616-25-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download
memory/4860-9-0x0000000072EC2000-0x0000000072EC3000-memory.dmp

Filesize
4KB

Download
memory/4860-10-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download
memory/4860-11-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download
memory/4860-22-0x0000000072EC0000-0x0000000073471000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads