njrat | 886e2a3641f4517c1397b9c50591bced52a2106aa78ba28648995e43dae39c8a

General

Target

af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe
Size

157KB
MD5

af45bad4b02446c2cc5d6a2a0f4d77f2
SHA1

830e116baa9eea775c5ca603cc9409ef1295ef5d
SHA256

886e2a3641f4517c1397b9c50591bced52a2106aa78ba28648995e43dae39c8a
SHA512

e5c17ddee92154934150d933e910dfe4ef7c109c31158024562d5bed811e6100a1599b5fa80a5e643fa010088fb1641d1f9349ef709519d39b10edfe071d9e7e
SSDEEP

3072:y929qYJOgh7qSyw2NOzHzjArOL/1TGAh4o2Tmq:y9IWSyw2EzHzjE+TGhoAm

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
1200	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	af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\90803d54d9f7528694db91e4fc428d87.exe	service.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\90803d54d9f7528694db91e4fc428d87.exe	service.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	service.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\90803d54d9f7528694db91e4fc428d87 = "\"C:\\Windows\\service.exe\" .."	service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\90803d54d9f7528694db91e4fc428d87 = "\"C:\\Windows\\service.exe\" .."	service.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\service.exe	af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.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	service.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe
Token: 33	4864	service.exe
Token: SeIncBasePriorityPrivilege	4864	service.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 4864	2920	af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe	91
PID 2920 wrote to memory of 4864	2920	af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe	91
PID 2920 wrote to memory of 4864	2920	af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe	91
PID 4864 wrote to memory of 1200	4864	service.exe	99
PID 4864 wrote to memory of 1200	4864	service.exe	99
PID 4864 wrote to memory of 1200	4864	service.exe	99

C:\Users\Admin\AppData\Local\Temp\af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\af45bad4b02446c2cc5d6a2a0f4d77f2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\service.exe
  "C:\Windows\service.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:4864
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\service.exe" "service.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1200

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

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Downloads

C:\Windows\service.exe

Filesize
157KB

MD5
af45bad4b02446c2cc5d6a2a0f4d77f2

SHA1
830e116baa9eea775c5ca603cc9409ef1295ef5d

SHA256
886e2a3641f4517c1397b9c50591bced52a2106aa78ba28648995e43dae39c8a

SHA512
e5c17ddee92154934150d933e910dfe4ef7c109c31158024562d5bed811e6100a1599b5fa80a5e643fa010088fb1641d1f9349ef709519d39b10edfe071d9e7e

Download Submit
memory/2920-0-0x0000000074D72000-0x0000000074D73000-memory.dmp

Filesize
4KB

Download
memory/2920-1-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/2920-2-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/2920-17-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4864-18-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4864-19-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4864-20-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4864-22-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads