njrat | 2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695

General

Target

2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe
Size

23KB
MD5

655d53c36016d5c848370ff66e8327b0
SHA1

77fc1ce3857585a22c7bd36e7113439be232825a
SHA256

2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695
SHA512

25800b224fbcbf3bbcbb34185a8c544b97d888d4072462c6bad8fcba14f844a0e73570da57d93ab4966b9ceaff711a5bd42ddb7f66a35edae467a343a5239a2b
SSDEEP

384:wnoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI4:17O89p2rRpcnu+

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
556	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	2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe

Executes dropped EXE 1 IoCs

pid	Process
3988	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-1-5-21-2878641211-696417878-3864914810-1000\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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.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	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe
Token: 33	3988	server.exe
Token: SeIncBasePriorityPrivilege	3988	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 3988	376	2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe	84
PID 376 wrote to memory of 3988	376	2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe	84
PID 376 wrote to memory of 3988	376	2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe	84
PID 3988 wrote to memory of 556	3988	server.exe	85
PID 3988 wrote to memory of 556	3988	server.exe	85
PID 3988 wrote to memory of 556	3988	server.exe	85

C:\Users\Admin\AppData\Local\Temp\2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe
"C:\Users\Admin\AppData\Local\Temp\2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:376
- 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:3988
- - 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:556

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
655d53c36016d5c848370ff66e8327b0

SHA1
77fc1ce3857585a22c7bd36e7113439be232825a

SHA256
2535dab866aeabc12488bc90619abcb4939ae7009b4ff26a4009cf92d4f82695

SHA512
25800b224fbcbf3bbcbb34185a8c544b97d888d4072462c6bad8fcba14f844a0e73570da57d93ab4966b9ceaff711a5bd42ddb7f66a35edae467a343a5239a2b

Download Submit
memory/376-0-0x0000000075392000-0x0000000075393000-memory.dmp

Filesize
4KB

Download
memory/376-1-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/376-2-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/376-12-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3988-13-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3988-14-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download
memory/3988-15-0x0000000075390000-0x0000000075941000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads