njrat | ef3857999507cf52a3c1d9570fc65351161f066e889b8521d4ea662c39272bd1

General

Target

JaffaCakes118_6941b638940033186c68a9abb6a55850.exe
Size

201KB
MD5

6941b638940033186c68a9abb6a55850
SHA1

752f0f2e33f94d64258ebba62a9648315f9223be
SHA256

ef3857999507cf52a3c1d9570fc65351161f066e889b8521d4ea662c39272bd1
SHA512

3cd1bd545d87767b9b560869de154be0082be38734297e0d20d1f3d80ea8ef2f96189ae83915439ff7f042a3e521daf1a4f69defa0caf95183dc5f8b9afa90b3
SSDEEP

1536:EVx0XXbS2hP/ny/BY9yeiGKg4zzUG8V8qhIVu:EVx6Py/BY9yeiGKg4sG8V8xVu

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

systemcl.ddns.net:5552

Mutex

1903b82e4b8cd1040c50d57db5b16c1d

Attributes

reg_key
1903b82e4b8cd1040c50d57db5b16c1d
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
2712	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1903b82e4b8cd1040c50d57db5b16c1d.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1903b82e4b8cd1040c50d57db5b16c1d.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
2580	system.exe

Loads dropped DLL 1 IoCs

pid	Process
2744	JaffaCakes118_6941b638940033186c68a9abb6a55850.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\1903b82e4b8cd1040c50d57db5b16c1d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\1903b82e4b8cd1040c50d57db5b16c1d = "\"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 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_6941b638940033186c68a9abb6a55850.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 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe
Token: 33	2580	system.exe
Token: SeIncBasePriorityPrivilege	2580	system.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2580	2744	JaffaCakes118_6941b638940033186c68a9abb6a55850.exe	31
PID 2744 wrote to memory of 2580	2744	JaffaCakes118_6941b638940033186c68a9abb6a55850.exe	31
PID 2744 wrote to memory of 2580	2744	JaffaCakes118_6941b638940033186c68a9abb6a55850.exe	31
PID 2744 wrote to memory of 2580	2744	JaffaCakes118_6941b638940033186c68a9abb6a55850.exe	31
PID 2580 wrote to memory of 2712	2580	system.exe	32
PID 2580 wrote to memory of 2712	2580	system.exe	32
PID 2580 wrote to memory of 2712	2580	system.exe	32
PID 2580 wrote to memory of 2712	2580	system.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6941b638940033186c68a9abb6a55850.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6941b638940033186c68a9abb6a55850.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:2580
- - 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:2712

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\Local\Temp\system.exe

Filesize
201KB

MD5
6941b638940033186c68a9abb6a55850

SHA1
752f0f2e33f94d64258ebba62a9648315f9223be

SHA256
ef3857999507cf52a3c1d9570fc65351161f066e889b8521d4ea662c39272bd1

SHA512
3cd1bd545d87767b9b560869de154be0082be38734297e0d20d1f3d80ea8ef2f96189ae83915439ff7f042a3e521daf1a4f69defa0caf95183dc5f8b9afa90b3

Download Submit
memory/2580-12-0x0000000000F70000-0x0000000000FA8000-memory.dmp

Filesize
224KB

Download
memory/2580-14-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2580-15-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2580-16-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2580-18-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2744-1-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/2744-2-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2744-3-0x0000000000240000-0x000000000024C000-memory.dmp

Filesize
48KB

Download
memory/2744-4-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2744-13-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads