njrat | bca817d5fb168e4c75ab8a048f15dacd144a2cc6d236b8515cbde8a744136d6d

General

Target

JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe
Size

23KB
MD5

62f6bf3919b207f71e97d7cf3a7d3e30
SHA1

724cf40cec6aeff73846a90402b64548d131aefa
SHA256

bca817d5fb168e4c75ab8a048f15dacd144a2cc6d236b8515cbde8a744136d6d
SHA512

492fcaed29c0d15eac64d74cfc790825955f963d4162a6b30b3114745475f8ead7b5437b71887327f30525aed82ad8210aa66ec1d6eaf04eb735e0309ef6b927
SSDEEP

384:Y8aZYC9twBNdcvFaly2H0dbJo6HghcASEJqc/ZmRvR6JZlbw8hqIusZzZ1c:eY+sNKqNHnSdRpcnuV

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
668	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe

Executes dropped EXE 1 IoCs

pid	Process
1788	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a96bbda12dae4e001b16bb4e8340508e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a96bbda12dae4e001b16bb4e8340508e = "\"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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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_62f6bf3919b207f71e97d7cf3a7d3e30.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	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe
Token: 33	1788	server.exe
Token: SeIncBasePriorityPrivilege	1788	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 1788	1516	JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe	83
PID 1516 wrote to memory of 1788	1516	JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe	83
PID 1516 wrote to memory of 1788	1516	JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe	83
PID 1788 wrote to memory of 668	1788	server.exe	86
PID 1788 wrote to memory of 668	1788	server.exe	86
PID 1788 wrote to memory of 668	1788	server.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_62f6bf3919b207f71e97d7cf3a7d3e30.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1516
- 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:1788
- - 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:668

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
62f6bf3919b207f71e97d7cf3a7d3e30

SHA1
724cf40cec6aeff73846a90402b64548d131aefa

SHA256
bca817d5fb168e4c75ab8a048f15dacd144a2cc6d236b8515cbde8a744136d6d

SHA512
492fcaed29c0d15eac64d74cfc790825955f963d4162a6b30b3114745475f8ead7b5437b71887327f30525aed82ad8210aa66ec1d6eaf04eb735e0309ef6b927

Download Submit
memory/1516-0-0x00000000749B2000-0x00000000749B3000-memory.dmp

Filesize
4KB

Download
memory/1516-1-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/1516-2-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/1516-13-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/1788-12-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/1788-14-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download
memory/1788-15-0x00000000749B0000-0x0000000074F61000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads