njrat | a9b8cef2c39cb4d8bf567d44f291330b1c207e94c47c2296cce6bb9be57d1a82

General

Target

JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe
Size

23KB
MD5

624e55a8d8bb148c31cfdd649a4659a0
SHA1

274a4de63e99c86d212f61618f04e2a023024c80
SHA256

a9b8cef2c39cb4d8bf567d44f291330b1c207e94c47c2296cce6bb9be57d1a82
SHA512

7bb8155e03dc0ad1e65105a3f899a9a9fc7fd160c1d1bba02d66b40d05cba66714a4e12dcfd6e9a3f9570902f2d9fbe0021c39a16cee5dc7b4983e420a97716a
SSDEEP

384:l/KPBfWhERYoBX16XuIeMHNw6Tg1Y6eeTFmRvR6JZlbw8hqIusZzZXsIKc:244P1InRpcnuAsO

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
1964	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	JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe

Executes dropped EXE 1 IoCs

pid	Process
3976	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	JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.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	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe
Token: 33	3976	server.exe
Token: SeIncBasePriorityPrivilege	3976	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 3976	384	JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe	85
PID 384 wrote to memory of 3976	384	JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe	85
PID 384 wrote to memory of 3976	384	JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe	85
PID 3976 wrote to memory of 1964	3976	server.exe	90
PID 3976 wrote to memory of 1964	3976	server.exe	90
PID 3976 wrote to memory of 1964	3976	server.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_624e55a8d8bb148c31cfdd649a4659a0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:384
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3976
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

1

T1562.004

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\Roaming\server.exe

Filesize
23KB

MD5
624e55a8d8bb148c31cfdd649a4659a0

SHA1
274a4de63e99c86d212f61618f04e2a023024c80

SHA256
a9b8cef2c39cb4d8bf567d44f291330b1c207e94c47c2296cce6bb9be57d1a82

SHA512
7bb8155e03dc0ad1e65105a3f899a9a9fc7fd160c1d1bba02d66b40d05cba66714a4e12dcfd6e9a3f9570902f2d9fbe0021c39a16cee5dc7b4983e420a97716a

Download Submit
memory/384-0-0x0000000075292000-0x0000000075293000-memory.dmp

Filesize
4KB

Download
memory/384-1-0x0000000075290000-0x0000000075841000-memory.dmp

Filesize
5.7MB

Download
memory/384-2-0x0000000075290000-0x0000000075841000-memory.dmp

Filesize
5.7MB

Download
memory/384-13-0x0000000075290000-0x0000000075841000-memory.dmp

Filesize
5.7MB

Download
memory/3976-12-0x0000000075290000-0x0000000075841000-memory.dmp

Filesize
5.7MB

Download
memory/3976-14-0x0000000075290000-0x0000000075841000-memory.dmp

Filesize
5.7MB

Download
memory/3976-15-0x0000000075290000-0x0000000075841000-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