njrat | 37085bf7f41bf2725a494083455abf1b162873ae0087bc97ec838d96ae190ebc

General

Target

JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe
Size

77KB
MD5

d2b5cb2b7b5d4d97b47bfd514b15021f
SHA1

245715e182f630220b5c206ac4c979b0872e21bc
SHA256

37085bf7f41bf2725a494083455abf1b162873ae0087bc97ec838d96ae190ebc
SHA512

8407cab85725f76e2f93cdecb83bd15c53e87ab53e661aa7b146201ae9c8b9a73679088d0e8a4291f01281890263c07d515db5e6595a62aefb952234b68cc73e
SSDEEP

768:jH6O4ktUTswgWHowV2+Ej3R22DFUXbPVuHN8fEijQoSiz63OXPrQ1NbbpXMmH2qf:uRkn3RpDFULPVuyf/QMXPrQr3pXZW0

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
2916	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe

Executes dropped EXE 1 IoCs

pid	Process
4544	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_d2b5cb2b7b5d4d97b47bfd514b15021f.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	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe
Token: 33	4544	server.exe
Token: SeIncBasePriorityPrivilege	4544	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 4544	4848	JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe	84
PID 4848 wrote to memory of 4544	4848	JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe	84
PID 4848 wrote to memory of 4544	4848	JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe	84
PID 4544 wrote to memory of 2916	4544	server.exe	85
PID 4544 wrote to memory of 2916	4544	server.exe	85
PID 4544 wrote to memory of 2916	4544	server.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d2b5cb2b7b5d4d97b47bfd514b15021f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4544
- - 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:2916

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
77KB

MD5
d2b5cb2b7b5d4d97b47bfd514b15021f

SHA1
245715e182f630220b5c206ac4c979b0872e21bc

SHA256
37085bf7f41bf2725a494083455abf1b162873ae0087bc97ec838d96ae190ebc

SHA512
8407cab85725f76e2f93cdecb83bd15c53e87ab53e661aa7b146201ae9c8b9a73679088d0e8a4291f01281890263c07d515db5e6595a62aefb952234b68cc73e

Download Submit
memory/4544-12-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4544-14-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4544-15-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4848-0-0x0000000075182000-0x0000000075183000-memory.dmp

Filesize
4KB

Download
memory/4848-1-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4848-2-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4848-13-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads