njrat | 11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191b

General

Target

11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe
Size

23KB
MD5

8ff0da747c6d0e9870cb9ce91b951160
SHA1

5c645d5eed1c2fa4ce5e9ba4ecc405915a71c579
SHA256

11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191b
SHA512

9cfa1c4e7089903a37eebdefd4303e283cf2b3b19a185b9ca9128c6d7cda3bb3a83ac82815a64dba002bc198c36598473c62db3f4ce6cca45d9e24d1dd54a1fa
SSDEEP

384:4sqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZpF:vf65K2Yf1jKRpcnuw

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

192.168.242.103:5552

Mutex

41e37e0e68c4601548177f4056648eeb

Attributes

reg_key
41e37e0e68c4601548177f4056648eeb
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
2840	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2092	server.exe

Loads dropped DLL 1 IoCs

pid	Process
272	11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\41e37e0e68c4601548177f4056648eeb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\41e37e0e68c4601548177f4056648eeb = "\"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	11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.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 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe
Token: 33	2092	server.exe
Token: SeIncBasePriorityPrivilege	2092	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 272 wrote to memory of 2092	272	11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe	31
PID 272 wrote to memory of 2092	272	11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe	31
PID 272 wrote to memory of 2092	272	11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe	31
PID 272 wrote to memory of 2092	272	11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe	31
PID 2092 wrote to memory of 2840	2092	server.exe	32
PID 2092 wrote to memory of 2840	2092	server.exe	32
PID 2092 wrote to memory of 2840	2092	server.exe	32
PID 2092 wrote to memory of 2840	2092	server.exe	32

C:\Users\Admin\AppData\Local\Temp\11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe
"C:\Users\Admin\AppData\Local\Temp\11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191bN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:272
- 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:2092
- - 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:2840

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
8ff0da747c6d0e9870cb9ce91b951160

SHA1
5c645d5eed1c2fa4ce5e9ba4ecc405915a71c579

SHA256
11651e832cac06016c2b253573e2eabb93d2cc3553e8d58bf3133c09ed44191b

SHA512
9cfa1c4e7089903a37eebdefd4303e283cf2b3b19a185b9ca9128c6d7cda3bb3a83ac82815a64dba002bc198c36598473c62db3f4ce6cca45d9e24d1dd54a1fa

Download Submit
memory/272-0-0x0000000074891000-0x0000000074892000-memory.dmp

Filesize
4KB

Download
memory/272-1-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/272-2-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/272-12-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2092-10-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2092-11-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2092-13-0x0000000074890000-0x0000000074E3B000-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