njrat | e83b309cc0449fd5467af9deae5ab1a96eb3dfdd79db1033606927690f500a95

General

Target

JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe
Size

812KB
MD5

f518b92181d577f065d37a5bea8ece21
SHA1

f950f55f056010057c8fe427728a5a3a11320deb
SHA256

e83b309cc0449fd5467af9deae5ab1a96eb3dfdd79db1033606927690f500a95
SHA512

efaa4ab64b15ca198ee66d9f03ec38777dd61e7c82a6f35d5de2b97fadcffac52094772a428d4cb810524567c16a03e89b120fa127a46185629a01331f6d86fc
SSDEEP

12288:MlEp2n8+8EUo+t3Jayk94TYDGD1LVVOuJ5Jyw2P00RYun7OlHPLf5zPDKg5V1/I:Ml0+sBXDJj7u7O9PZDKg5fQ

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
3472	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_f518b92181d577f065d37a5bea8ece21.exe

Executes dropped EXE 1 IoCs

pid	Process
3560	svchost.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\82b7a32463b8663d821334e42891bd45 = "\"C:\\ProgramData\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\82b7a32463b8663d821334e42891bd45 = "\"C:\\ProgramData\\svchost.exe\" .."	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	JaffaCakes118_f518b92181d577f065d37a5bea8ece21.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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe
Token: 33	3560	svchost.exe
Token: SeIncBasePriorityPrivilege	3560	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 3560	4480	JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe	82
PID 4480 wrote to memory of 3560	4480	JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe	82
PID 4480 wrote to memory of 3560	4480	JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe	82
PID 3560 wrote to memory of 3472	3560	svchost.exe	88
PID 3560 wrote to memory of 3472	3560	svchost.exe	88
PID 3560 wrote to memory of 3472	3560	svchost.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f518b92181d577f065d37a5bea8ece21.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- C:\ProgramData\svchost.exe
  "C:\ProgramData\svchost.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:3560
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3472

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

Loading Replay Monitor...

Downloads

C:\ProgramData\svchost.exe

Filesize
812KB

MD5
f518b92181d577f065d37a5bea8ece21

SHA1
f950f55f056010057c8fe427728a5a3a11320deb

SHA256
e83b309cc0449fd5467af9deae5ab1a96eb3dfdd79db1033606927690f500a95

SHA512
efaa4ab64b15ca198ee66d9f03ec38777dd61e7c82a6f35d5de2b97fadcffac52094772a428d4cb810524567c16a03e89b120fa127a46185629a01331f6d86fc

Download Submit
C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch

Filesize
478B

MD5
d9eabca4f3ca9345265f5bdf9a4fb30a

SHA1
3399010cd14a7ad153b4891fea077a09e618fba7

SHA256
d9827ca8387a25ea2acaac577f83ec6d284af5c1f211cc34667038cff3509169

SHA512
df36a0d46ec4a9676f6ef9db678ab384308d50fca436f9b25cec31dc443d1cead0ab10e7e488a24cc479e68feb952b2454faab9bb1ba374732e291e9eb6328ee

Download Submit
memory/3560-23-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-22-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-25-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/3560-26-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/4480-0-0x0000000074A42000-0x0000000074A43000-memory.dmp

Filesize
4KB

Download
memory/4480-1-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/4480-2-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/4480-21-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/4480-24-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Filesize
5.7MB

Download
memory/4480-17-0x0000000074A42000-0x0000000074A43000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads