njrat | b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db

General

Target

b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe
Size

23KB
MD5

71fcfb513538ed981068a2471ccdd94e
SHA1

9c005883e25b4af9f7863d39acc06b94ac4b5342
SHA256

b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db
SHA512

0ba953e72d793ad15ae6f4fcb8a596624dc33cda12f3284b3f65b15186883bac78f84ce3714bf0936c5a6027bf08dfd5086443990bdeac7db8db1591e022a32a
SSDEEP

384:6Gwz6+T4IjWZFNwXU0eiNUBdvt6lgT+lLOhXxQmRvR6JZlbw8hqIusZzZCRW:eTbC81NgRpcnufE

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

192.168.1.16:5552

Mutex

8325949a53507d629967d9d9b9741bc0

Attributes

reg_key
8325949a53507d629967d9d9b9741bc0
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
2860	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2940	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\8325949a53507d629967d9d9b9741bc0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8325949a53507d629967d9d9b9741bc0 = "\"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 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	b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.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	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe
Token: 33	2940	server.exe
Token: SeIncBasePriorityPrivilege	2940	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2940	2180	b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe	30
PID 2180 wrote to memory of 2940	2180	b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe	30
PID 2180 wrote to memory of 2940	2180	b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe	30
PID 2180 wrote to memory of 2940	2180	b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe	30
PID 2940 wrote to memory of 2860	2940	server.exe	31
PID 2940 wrote to memory of 2860	2940	server.exe	31
PID 2940 wrote to memory of 2860	2940	server.exe	31
PID 2940 wrote to memory of 2860	2940	server.exe	31

C:\Users\Admin\AppData\Local\Temp\b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe
"C:\Users\Admin\AppData\Local\Temp\b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:2940
- - C:\Windows\SysWOW64\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
    - System Location Discovery: System Language Discovery
    PID:2860

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\server.exe

Filesize
23KB

MD5
71fcfb513538ed981068a2471ccdd94e

SHA1
9c005883e25b4af9f7863d39acc06b94ac4b5342

SHA256
b48799d2eee65351dde0cf00b8beb57ab15da799384c1b546c358f18d412a6db

SHA512
0ba953e72d793ad15ae6f4fcb8a596624dc33cda12f3284b3f65b15186883bac78f84ce3714bf0936c5a6027bf08dfd5086443990bdeac7db8db1591e022a32a

Download Submit
memory/2180-0-0x0000000074CF1000-0x0000000074CF2000-memory.dmp

Filesize
4KB

Download
memory/2180-1-0x0000000074CF0000-0x000000007529B000-memory.dmp

Filesize
5.7MB

Download
memory/2180-2-0x0000000074CF0000-0x000000007529B000-memory.dmp

Filesize
5.7MB

Download
memory/2180-12-0x0000000074CF0000-0x000000007529B000-memory.dmp

Filesize
5.7MB

Download
memory/2940-10-0x0000000074CF0000-0x000000007529B000-memory.dmp

Filesize
5.7MB

Download
memory/2940-11-0x0000000074CF0000-0x000000007529B000-memory.dmp

Filesize
5.7MB

Download
memory/2940-13-0x0000000074CF0000-0x000000007529B000-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