njrat | 14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73

General

Target

14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe
Size

23KB
MD5

36e8df4d9817ff097f677b87b9dd7b30
SHA1

924bfe7fe83eff031ce00ff71265cd96014113c0
SHA256

14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73
SHA512

5678f20346daf9ebffc4e01f8e7fc490802ee8cdbbe31e83ea2c88dfe6bf0612d0ffe6d0962b3020a91a27b50f7aed7312d99cf9fcfc24d90828cd80c44639ec
SSDEEP

384:sQ+ILgIbOprgPsUOSU0kB1kd6Lg7GYh/JomRvR6JZlbw8hqIusZzZBx:/LL6MVU0XRpcnuw

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
2972	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\83d06845e55bd392660f4407b1ed1cd0.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\83d06845e55bd392660f4407b1ed1cd0.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
904	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\83d06845e55bd392660f4407b1ed1cd0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\83d06845e55bd392660f4407b1ed1cd0 = "\"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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe
Token: 33	904	server.exe
Token: SeIncBasePriorityPrivilege	904	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 904	4036	14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe	92
PID 4036 wrote to memory of 904	4036	14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe	92
PID 4036 wrote to memory of 904	4036	14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe	92
PID 904 wrote to memory of 2972	904	server.exe	95
PID 904 wrote to memory of 2972	904	server.exe	95
PID 904 wrote to memory of 2972	904	server.exe	95

C:\Users\Admin\AppData\Local\Temp\14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe
"C:\Users\Admin\AppData\Local\Temp\14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:904
- - 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:2972

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
23KB

MD5
36e8df4d9817ff097f677b87b9dd7b30

SHA1
924bfe7fe83eff031ce00ff71265cd96014113c0

SHA256
14cfe3818e80267c2768d98d589471f52e3fc1bc94cfd54f36ae592a15769b73

SHA512
5678f20346daf9ebffc4e01f8e7fc490802ee8cdbbe31e83ea2c88dfe6bf0612d0ffe6d0962b3020a91a27b50f7aed7312d99cf9fcfc24d90828cd80c44639ec

Download Submit
memory/904-12-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/904-14-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/904-16-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/4036-0-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

Filesize
4KB

Download
memory/4036-1-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/4036-2-0x0000000074DD0000-0x0000000075381000-memory.dmp

Filesize
5.7MB

Download
memory/4036-13-0x0000000074DD0000-0x0000000075381000-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