njrat | 7344fd917184119d3a50e368d143652e1cc8923ba282fd4f9a282355e3134600

General

Target

e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe
Size

135KB
MD5

e20f3bd5a62ee4974c63f2a3fc1f3c91
SHA1

a9748cbec07bad741379141d66308171933dc940
SHA256

7344fd917184119d3a50e368d143652e1cc8923ba282fd4f9a282355e3134600
SHA512

d72a3420751d3778d4053fc737e63dbc7900c9b405801506d889e23cb5b7117ab365ef48d2226c98d88cb882d7b842f159696ae432701ff68d64e179fa42b9bf
SSDEEP

768:lW4V6+yDRpcnua0WPw43GZJRhRER5R8HRRGRxRRUReRxRTRpR5sp+IGuxS0ip1W0:lW4VcDRWua0WPT/0S1p1Wm5p

Score

10^/10

njrat seeend discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

seeend

C2

ms1000.myq-see.com:1000

Mutex

b36ec6c682f0258206676a6f57163305

Attributes

reg_key
b36ec6c682f0258206676a6f57163305
splitter
|'|'|

Signatures

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
2720	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b36ec6c682f0258206676a6f57163305.exe	Chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b36ec6c682f0258206676a6f57163305.exe	Chrome.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	Chrome.exe

Loads dropped DLL 1 IoCs

pid	Process
2124	e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\b36ec6c682f0258206676a6f57163305 = "\"C:\\ProgramData\\Chrome.exe\" .."	Chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\b36ec6c682f0258206676a6f57163305 = "\"C:\\ProgramData\\Chrome.exe\" .."	Chrome.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	e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Chrome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe
Token: 33	2808	Chrome.exe
Token: SeIncBasePriorityPrivilege	2808	Chrome.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2808	2124	e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2808	2124	e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2808	2124	e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2808	2124	e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe	30
PID 2808 wrote to memory of 2720	2808	Chrome.exe	31
PID 2808 wrote to memory of 2720	2808	Chrome.exe	31
PID 2808 wrote to memory of 2720	2808	Chrome.exe	31
PID 2808 wrote to memory of 2720	2808	Chrome.exe	31

C:\Users\Admin\AppData\Local\Temp\e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e20f3bd5a62ee4974c63f2a3fc1f3c91_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\ProgramData\Chrome.exe
  "C:\ProgramData\Chrome.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:2808
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\Chrome.exe" "Chrome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2720

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

System Information Discovery

1

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

\ProgramData\Chrome.exe

Filesize
135KB

MD5
e20f3bd5a62ee4974c63f2a3fc1f3c91

SHA1
a9748cbec07bad741379141d66308171933dc940

SHA256
7344fd917184119d3a50e368d143652e1cc8923ba282fd4f9a282355e3134600

SHA512
d72a3420751d3778d4053fc737e63dbc7900c9b405801506d889e23cb5b7117ab365ef48d2226c98d88cb882d7b842f159696ae432701ff68d64e179fa42b9bf

Download Submit
memory/2124-0-0x0000000074AF1000-0x0000000074AF2000-memory.dmp

Filesize
4KB

Download
memory/2124-1-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-2-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-10-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-12-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-11-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-14-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads