njrat | 24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1

General

Target

24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe
Size

23KB
MD5

f7a4e0f424339e7ee79ff786e32bf9c0
SHA1

ed3ca15f61691be0edcbf7fa5307a0924c39effd
SHA256

24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1
SHA512

b8ed8389d7a5eb1d9d505ba6619a5ddb5e2857263565157f5a9c0b89954eb6e9326637fa02e7fbc8c3b256494f656af00c08b3bff98aa912f9865ecd8b9a6348
SSDEEP

384:JoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIQR:e7O89p2rRpcnu8

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
3124	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe

Executes dropped EXE 1 IoCs

pid	Process
5076	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-1-5-21-786284298-625481688-3210388970-1000\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 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	24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.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	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe
Token: 33	5076	server.exe
Token: SeIncBasePriorityPrivilege	5076	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 5076	2592	24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe	87
PID 2592 wrote to memory of 5076	2592	24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe	87
PID 2592 wrote to memory of 5076	2592	24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe	87
PID 5076 wrote to memory of 3124	5076	server.exe	90
PID 5076 wrote to memory of 3124	5076	server.exe	90
PID 5076 wrote to memory of 3124	5076	server.exe	90

C:\Users\Admin\AppData\Local\Temp\24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe
"C:\Users\Admin\AppData\Local\Temp\24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2592
- 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:5076
- - 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:3124

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
f7a4e0f424339e7ee79ff786e32bf9c0

SHA1
ed3ca15f61691be0edcbf7fa5307a0924c39effd

SHA256
24d7b631e5ecb23fb41edca7d5943f53abe6f351fe88322389bd5862841e13a1

SHA512
b8ed8389d7a5eb1d9d505ba6619a5ddb5e2857263565157f5a9c0b89954eb6e9326637fa02e7fbc8c3b256494f656af00c08b3bff98aa912f9865ecd8b9a6348

Download Submit
memory/2592-0-0x0000000074C22000-0x0000000074C23000-memory.dmp

Filesize
4KB

Download
memory/2592-1-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download
memory/2592-2-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download
memory/2592-13-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download
memory/5076-12-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download
memory/5076-14-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download
memory/5076-15-0x0000000074C20000-0x00000000751D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads