njrat | 36f08bf4059c3d04592155a22996b0867a02443695db64f576635327ea04d618

General

Target

JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe
Size

82KB
MD5

4732809a00d0b2a94085ecf88b7bb550
SHA1

0057b12e98d27b28dea79d9338d979c2ba6faa80
SHA256

36f08bf4059c3d04592155a22996b0867a02443695db64f576635327ea04d618
SHA512

ba64f40d668ea9100fd1e4abf328d297b35c2f7513f3cd5db8288c9dd513bce6d4681a9e50d99b3af5a98dea824c1531cacb8ee4f69a2565a5251572983b1bd3
SSDEEP

1536:WwHTYXvGC2Ek61ZNe2cIBGh90nEmhOZOEpn1qtMyO8lPpJT9sO3uxCU4S2vB8le9:JTY/5k6fEnxSlpJBcAp1v5

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
4796	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe

Executes dropped EXE 1 IoCs

pid	Process
3064	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"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	JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe
Token: 33	3064	server.exe
Token: SeIncBasePriorityPrivilege	3064	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 3064	824	JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe	84
PID 824 wrote to memory of 3064	824	JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe	84
PID 824 wrote to memory of 3064	824	JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe	84
PID 3064 wrote to memory of 4796	3064	server.exe	86
PID 3064 wrote to memory of 4796	3064	server.exe	86
PID 3064 wrote to memory of 4796	3064	server.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4732809a00d0b2a94085ecf88b7bb550.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:824
- 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:3064
- - 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:4796

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
82KB

MD5
4732809a00d0b2a94085ecf88b7bb550

SHA1
0057b12e98d27b28dea79d9338d979c2ba6faa80

SHA256
36f08bf4059c3d04592155a22996b0867a02443695db64f576635327ea04d618

SHA512
ba64f40d668ea9100fd1e4abf328d297b35c2f7513f3cd5db8288c9dd513bce6d4681a9e50d99b3af5a98dea824c1531cacb8ee4f69a2565a5251572983b1bd3

Download Submit
memory/824-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

Filesize
4KB

Download
memory/824-1-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/824-2-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/824-13-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3064-12-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3064-15-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3064-14-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3064-16-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads