njrat | 6a9eaed50b2f173e8169ac8ae34de895b3f016b905226295e1ec43d4817070f4

General

Target

JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe
Size

23KB
MD5

47b5c95661cc9b549430191bdcb3baa0
SHA1

75b6cbd129e9291bf0fc24146c9bb5aafe19159c
SHA256

6a9eaed50b2f173e8169ac8ae34de895b3f016b905226295e1ec43d4817070f4
SHA512

5964a40e556164a869e65fda593b391485c28dc738ae418e823cf888fe1ee0359ad743c93c2563e608226509f229d7f50541fa25590b88e0c29d63e152f9fcaf
SSDEEP

384:MqMqYmCsg/yJrQ7hucGSl7UJx4g6JgfCcosjddmRvR6JZlbw8hqIusZzZpts:MqErG0Btl7rRpcnuv

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

0932343ebc836c39c857a65dc20ea0fb

Attributes

reg_key
0932343ebc836c39c857a65dc20ea0fb
splitter
|'|'|

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
2852	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0932343ebc836c39c857a65dc20ea0fb.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0932343ebc836c39c857a65dc20ea0fb.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2540	server.exe

Loads dropped DLL 1 IoCs

pid	Process
1804	JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\0932343ebc836c39c857a65dc20ea0fb = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0932343ebc836c39c857a65dc20ea0fb = "\"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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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_47b5c95661cc9b549430191bdcb3baa0.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	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 2540	1804	JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe	31
PID 1804 wrote to memory of 2540	1804	JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe	31
PID 1804 wrote to memory of 2540	1804	JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe	31
PID 1804 wrote to memory of 2540	1804	JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe	31
PID 2540 wrote to memory of 2852	2540	server.exe	32
PID 2540 wrote to memory of 2852	2540	server.exe	32
PID 2540 wrote to memory of 2852	2540	server.exe	32
PID 2540 wrote to memory of 2852	2540	server.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_47b5c95661cc9b549430191bdcb3baa0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.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:2540
- - 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:2852

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

\Users\Admin\AppData\Roaming\server.exe

Filesize
23KB

MD5
47b5c95661cc9b549430191bdcb3baa0

SHA1
75b6cbd129e9291bf0fc24146c9bb5aafe19159c

SHA256
6a9eaed50b2f173e8169ac8ae34de895b3f016b905226295e1ec43d4817070f4

SHA512
5964a40e556164a869e65fda593b391485c28dc738ae418e823cf888fe1ee0359ad743c93c2563e608226509f229d7f50541fa25590b88e0c29d63e152f9fcaf

Download Submit
memory/1804-0-0x0000000074BC1000-0x0000000074BC2000-memory.dmp

Filesize
4KB

Download
memory/1804-1-0x0000000074BC0000-0x000000007516B000-memory.dmp

Filesize
5.7MB

Download
memory/1804-2-0x0000000074BC0000-0x000000007516B000-memory.dmp

Filesize
5.7MB

Download
memory/1804-11-0x0000000074BC0000-0x000000007516B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-10-0x0000000074BC0000-0x000000007516B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-13-0x0000000074BC0000-0x000000007516B000-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