njrat | d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599f

General

Target

d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe
Size

31KB
MD5

adaa3ae98fad53f8cfb54266fdc4f710
SHA1

56ec60bc09c0510ec0f5d60aa6d7662a6d273804
SHA256

d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599f
SHA512

dfb4076abd2de0b1b1fd3408f45505c363fcd3e74ae649778d07b4cdb4f4a687b9bc77177ca0c28b82a67f5ccadbd7237471f4cc96ee5bee5220f98a1a34738c
SSDEEP

768:ilS569DdxkzxP6bYMCG3VQNvqjQmIDUu0tiFBj:Xqq27icQVkOj

Score

10^/10

njrat explorer discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

explorer

C2

154.197.69.22:6502

Mutex

032d537ea8a490a45dedf853e1d3dc09

Attributes

reg_key
032d537ea8a490a45dedf853e1d3dc09
splitter
Y262SUCZ4UJJ

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
2652	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\032d537ea8a490a45dedf853e1d3dc09.exe	explorer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\032d537ea8a490a45dedf853e1d3dc09.exe	explorer.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	explorer.exe

Loads dropped DLL 1 IoCs

pid	Process
2432	d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\032d537ea8a490a45dedf853e1d3dc09 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer.exe\" .."	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\032d537ea8a490a45dedf853e1d3dc09 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer.exe\" .."	explorer.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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe
Token: 33	2772	explorer.exe
Token: SeIncBasePriorityPrivilege	2772	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2772	2432	d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe	30
PID 2432 wrote to memory of 2772	2432	d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe	30
PID 2432 wrote to memory of 2772	2432	d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe	30
PID 2432 wrote to memory of 2772	2432	d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe	30
PID 2772 wrote to memory of 2652	2772	explorer.exe	31
PID 2772 wrote to memory of 2652	2772	explorer.exe	31
PID 2772 wrote to memory of 2652	2772	explorer.exe	31
PID 2772 wrote to memory of 2652	2772	explorer.exe	31

C:\Users\Admin\AppData\Local\Temp\d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe
"C:\Users\Admin\AppData\Local\Temp\d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599fN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\explorer.exe
  "C:\Users\Admin\AppData\Local\Temp\explorer.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:2772
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.exe" "explorer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2652

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\explorer.exe

Filesize
31KB

MD5
adaa3ae98fad53f8cfb54266fdc4f710

SHA1
56ec60bc09c0510ec0f5d60aa6d7662a6d273804

SHA256
d5a9ac5bb4ec71dd952250b5421f3bb38e0b94110de36d413a28704b5d3c599f

SHA512
dfb4076abd2de0b1b1fd3408f45505c363fcd3e74ae649778d07b4cdb4f4a687b9bc77177ca0c28b82a67f5ccadbd7237471f4cc96ee5bee5220f98a1a34738c

Download Submit
memory/2432-0-0x0000000074301000-0x0000000074302000-memory.dmp

Filesize
4KB

Download
memory/2432-1-0x0000000074300000-0x00000000748AB000-memory.dmp

Filesize
5.7MB

Download
memory/2432-2-0x0000000074300000-0x00000000748AB000-memory.dmp

Filesize
5.7MB

Download
memory/2432-12-0x0000000074300000-0x00000000748AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-10-0x0000000074300000-0x00000000748AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-11-0x0000000074300000-0x00000000748AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-14-0x0000000074300000-0x00000000748AB000-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