njrat | 15f2e54259f1efd0d465846be345d1fa17129f5ef94fefbb63e4136b9fe61837

General

Target

JaffaCakes118_45b88785f21fe46e03db411611ec8d80.exe
Size

23KB
MD5

45b88785f21fe46e03db411611ec8d80
SHA1

69b313beedb8f88317db3662c95e94b2a2b62503
SHA256

15f2e54259f1efd0d465846be345d1fa17129f5ef94fefbb63e4136b9fe61837
SHA512

29e02f20ff7f1d7ca6d1900ad560412296009d8cfb20b94152b033820f8dd54bed6aa5057e2aed2351f846357ce4d91315afe8fccb97576a239999fd4274ba5e
SSDEEP

384:0HFGAqQXjrwQYj00eHUE3UhOreY9JfJpaQU/2lmzUM9l/Us0yJtM:AqQK00e1BTxpaQUCgjPM

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
2976	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_45b88785f21fe46e03db411611ec8d80.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b14b3e48cbc4d20d685ca810d2ae9ab.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b14b3e48cbc4d20d685ca810d2ae9ab.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	system.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b14b3e48cbc4d20d685ca810d2ae9ab = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8b14b3e48cbc4d20d685ca810d2ae9ab = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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_45b88785f21fe46e03db411611ec8d80.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe
Token: 33	3932	system.exe
Token: SeIncBasePriorityPrivilege	3932	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 3932	5012	JaffaCakes118_45b88785f21fe46e03db411611ec8d80.exe	84
PID 5012 wrote to memory of 3932	5012	JaffaCakes118_45b88785f21fe46e03db411611ec8d80.exe	84
PID 5012 wrote to memory of 3932	5012	JaffaCakes118_45b88785f21fe46e03db411611ec8d80.exe	84
PID 3932 wrote to memory of 2976	3932	system.exe	88
PID 3932 wrote to memory of 2976	3932	system.exe	88
PID 3932 wrote to memory of 2976	3932	system.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45b88785f21fe46e03db411611ec8d80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_45b88785f21fe46e03db411611ec8d80.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\system.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:3932
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2976

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\system.exe

Filesize
23KB

MD5
45b88785f21fe46e03db411611ec8d80

SHA1
69b313beedb8f88317db3662c95e94b2a2b62503

SHA256
15f2e54259f1efd0d465846be345d1fa17129f5ef94fefbb63e4136b9fe61837

SHA512
29e02f20ff7f1d7ca6d1900ad560412296009d8cfb20b94152b033820f8dd54bed6aa5057e2aed2351f846357ce4d91315afe8fccb97576a239999fd4274ba5e

Download Submit
memory/3932-13-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3932-14-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3932-16-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/5012-0-0x0000000074F72000-0x0000000074F73000-memory.dmp

Filesize
4KB

Download
memory/5012-1-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/5012-2-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/5012-12-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads