njrat | e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94

General

Target

e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe
Size

23KB
MD5

782674105b6f7395dbc4c086051be7e0
SHA1

351a805ccdcd69208b7ac08f2e0c5fc49b86cdd0
SHA256

e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94
SHA512

8c2768cbedf0a650437fdb5868720497556d0fd7c2dabec5231b50d2b03c823313c370a1c38774e17f72fbbec0d9f44e99ea95e157a8ab5604902bee20b9b05d
SSDEEP

384:w8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZp/:/Xcwt3tRpcnum

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
2260	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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe

Executes dropped EXE 1 IoCs

pid	Process
4912	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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\33f9e1d6fefce618b71a50ca08e3da67 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\33f9e1d6fefce618b71a50ca08e3da67 = "\"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	e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.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 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe
Token: 33	4912	server.exe
Token: SeIncBasePriorityPrivilege	4912	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 4912	3828	e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe	82
PID 3828 wrote to memory of 4912	3828	e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe	82
PID 3828 wrote to memory of 4912	3828	e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe	82
PID 4912 wrote to memory of 2260	4912	server.exe	88
PID 4912 wrote to memory of 2260	4912	server.exe	88
PID 4912 wrote to memory of 2260	4912	server.exe	88

C:\Users\Admin\AppData\Local\Temp\e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe
"C:\Users\Admin\AppData\Local\Temp\e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3828
- 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:4912
- - 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:2260

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
782674105b6f7395dbc4c086051be7e0

SHA1
351a805ccdcd69208b7ac08f2e0c5fc49b86cdd0

SHA256
e228931cf49e7791c04db0dfa28ee0e76497ab44201bdbee5f6f575791f79e94

SHA512
8c2768cbedf0a650437fdb5868720497556d0fd7c2dabec5231b50d2b03c823313c370a1c38774e17f72fbbec0d9f44e99ea95e157a8ab5604902bee20b9b05d

Download Submit
memory/3828-0-0x00000000749D2000-0x00000000749D3000-memory.dmp

Filesize
4KB

Download
memory/3828-1-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/3828-2-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/3828-13-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4912-14-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4912-15-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4912-12-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download
memory/4912-16-0x00000000749D0000-0x0000000074F81000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads