njrat | 3ef90c48e7cbc9caa234d8d8a3149ce72a9f3e471e2f24e3dba09264c09c3ec3

General

Target

JaffaCakes118_4676c5fb478e0e5af4227433d41198d0.exe
Size

16KB
MD5

4676c5fb478e0e5af4227433d41198d0
SHA1

9de63d09f6fc0a044ebb425dd4d3dc08c3b6da80
SHA256

3ef90c48e7cbc9caa234d8d8a3149ce72a9f3e471e2f24e3dba09264c09c3ec3
SHA512

7cd13be3a0badf6179015378fc23d19c36d565c1671d3832389ac1168d8b4693f9b486258fde50c565f7e13f9ef6c1c91d03c8ae80abf20cf5d67b8abb7ce97f
SSDEEP

384:Y3jrED137xiGg77do2LJvKeNMZzg5cks:3D5xiRZrLJvK2ls

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

mohamedmaher27.ddns.net:5552

Mutex

6c8a21897849848faa01ead3475dd69b

Attributes

reg_key
6c8a21897849848faa01ead3475dd69b
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
4056	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4676c5fb478e0e5af4227433d41198d0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6c8a21897849848faa01ead3475dd69b.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6c8a21897849848faa01ead3475dd69b.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1968	server.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6c8a21897849848faa01ead3475dd69b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6c8a21897849848faa01ead3475dd69b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe
Token: 33	1968	server.exe
Token: SeIncBasePriorityPrivilege	1968	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 1968	3696	JaffaCakes118_4676c5fb478e0e5af4227433d41198d0.exe	86
PID 3696 wrote to memory of 1968	3696	JaffaCakes118_4676c5fb478e0e5af4227433d41198d0.exe	86
PID 1968 wrote to memory of 4056	1968	server.exe	90
PID 1968 wrote to memory of 4056	1968	server.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4676c5fb478e0e5af4227433d41198d0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4676c5fb478e0e5af4227433d41198d0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3696
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4056

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
16KB

MD5
4676c5fb478e0e5af4227433d41198d0

SHA1
9de63d09f6fc0a044ebb425dd4d3dc08c3b6da80

SHA256
3ef90c48e7cbc9caa234d8d8a3149ce72a9f3e471e2f24e3dba09264c09c3ec3

SHA512
7cd13be3a0badf6179015378fc23d19c36d565c1671d3832389ac1168d8b4693f9b486258fde50c565f7e13f9ef6c1c91d03c8ae80abf20cf5d67b8abb7ce97f

Download Submit
memory/1968-25-0x00007FFA4CF70000-0x00007FFA4D911000-memory.dmp

Filesize
9.6MB

Download
memory/1968-24-0x000000001B260000-0x000000001B268000-memory.dmp

Filesize
32KB

Download
memory/1968-23-0x000000001C890000-0x000000001C92C000-memory.dmp

Filesize
624KB

Download
memory/1968-21-0x00007FFA4CF70000-0x00007FFA4D911000-memory.dmp

Filesize
9.6MB

Download
memory/1968-20-0x00007FFA4CF70000-0x00007FFA4D911000-memory.dmp

Filesize
9.6MB

Download
memory/3696-6-0x000000001C4C0000-0x000000001C566000-memory.dmp

Filesize
664KB

Download
memory/3696-0-0x00007FFA4D225000-0x00007FFA4D226000-memory.dmp

Filesize
4KB

Download
memory/3696-5-0x0000000000BA0000-0x0000000000BAC000-memory.dmp

Filesize
48KB

Download
memory/3696-19-0x00007FFA4CF70000-0x00007FFA4D911000-memory.dmp

Filesize
9.6MB

Download
memory/3696-4-0x00007FFA4CF70000-0x00007FFA4D911000-memory.dmp

Filesize
9.6MB

Download
memory/3696-3-0x000000001B9B0000-0x000000001BE7E000-memory.dmp

Filesize
4.8MB

Download
memory/3696-2-0x00007FFA4CF70000-0x00007FFA4D911000-memory.dmp

Filesize
9.6MB

Download
memory/3696-1-0x000000001B3A0000-0x000000001B4D6000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads