njrat | f4fc76a5f222499ddaa29a622c5d63c9d64c501b48e0019b8c7406b968504970

General

Target

JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe
Size

48KB
MD5

6ba2d82059d78ec1ee0e66cd6ef7d540
SHA1

b1ec6ad1191d92bab6db689d0fef0e9871b5343d
SHA256

f4fc76a5f222499ddaa29a622c5d63c9d64c501b48e0019b8c7406b968504970
SHA512

0039b804ac000abd7a5d03c4aecbcabebe4814947069f87d62d6eda295c42392c0a56ef48ed2371dbfce8425d978bbfe2fff935ce66ce07b7e96d209701b4338
SSDEEP

384:7PQeCo2zmZbQHkJeCdUwBvQ61gjuQBnB9mRvR6JZlbw8hqIusZzZWN:7Q5yBVd7Rpcnul

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
4200	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe

Executes dropped EXE 1 IoCs

pid	Process
1336	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a97ce84ca9a41cc11067d577e03e41db = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a97ce84ca9a41cc11067d577e03e41db = "\"C:\\Users\\Admin\\AppData\\Roaming\\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_6ba2d82059d78ec1ee0e66cd6ef7d540.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	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe
Token: 33	1336	server.exe
Token: SeIncBasePriorityPrivilege	1336	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 1336	1632	JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe	83
PID 1632 wrote to memory of 1336	1632	JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe	83
PID 1632 wrote to memory of 1336	1632	JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe	83
PID 1336 wrote to memory of 4200	1336	server.exe	90
PID 1336 wrote to memory of 4200	1336	server.exe	90
PID 1336 wrote to memory of 4200	1336	server.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ba2d82059d78ec1ee0e66cd6ef7d540.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\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:1336
- - 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:4200

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\Roaming\server.exe

Filesize
48KB

MD5
6ba2d82059d78ec1ee0e66cd6ef7d540

SHA1
b1ec6ad1191d92bab6db689d0fef0e9871b5343d

SHA256
f4fc76a5f222499ddaa29a622c5d63c9d64c501b48e0019b8c7406b968504970

SHA512
0039b804ac000abd7a5d03c4aecbcabebe4814947069f87d62d6eda295c42392c0a56ef48ed2371dbfce8425d978bbfe2fff935ce66ce07b7e96d209701b4338

Download Submit
memory/1336-12-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/1336-14-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/1336-15-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/1632-0-0x00000000749C2000-0x00000000749C3000-memory.dmp

Filesize
4KB

Download
memory/1632-1-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/1632-2-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/1632-13-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads