njrat | 2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9

General

Target

2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe
Size

297KB
MD5

e7019b9470a3429ed56932e348a16b28
SHA1

518b13eba11c699b053f45e5316d5cbbe3d346b8
SHA256

2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9
SHA512

8bf818148e4dc084494e36fcb52c27df00237dd40f5c6171b56c1d78d334e636a317f3d8589c7889ca77478585eac06a8c9c50c82749f409a08fa9f1ef7583e7
SSDEEP

1536:SRtvbvk5KQCMvxl96lONCyCqU+lKeUd026bLG+TLWQrQkZWSdR:+aCMvx6wNCyCsHG+J5R

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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

Processes:

netsh.exe

pid process

2720 netsh.exe

pid	process
2720	netsh.exe

Drops startup file 2 IoCs

Processes:

MicrosoftÂ© Security.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7aa9a83dbf626be2e39c02a98df4d187.exe	MicrosoftÂ© Security.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7aa9a83dbf626be2e39c02a98df4d187.exe	MicrosoftÂ© Security.exe

Executes dropped EXE 1 IoCs

Processes:

MicrosoftÂ© Security.exe

pid process

2800 MicrosoftÂ© Security.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

MicrosoftÂ© Security.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\7aa9a83dbf626be2e39c02a98df4d187 = "\"C:\\Windows\\MicrosoftÂ© Security.exe\" .."	MicrosoftÂ© Security.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7aa9a83dbf626be2e39c02a98df4d187 = "\"C:\\Windows\\MicrosoftÂ© Security.exe\" .."	MicrosoftÂ© Security.exe

Drops file in Windows directory 4 IoCs

Processes:

MicrosoftÂ© Security.exe2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe

description	ioc	process
File opened for modification	C:\Windows\MicrosoftÂ© Security.exe.tmp	MicrosoftÂ© Security.exe
File created	C:\Windows\MicrosoftÂ© Security.exe	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe
File opened for modification	C:\Windows\MicrosoftÂ© Security.exe	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe
File created	C:\Windows\MicrosoftÂ© Security.exe.tmp	MicrosoftÂ© Security.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

Processes:

netsh.exe

description	ioc	process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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

Processes:

2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exeMicrosoftÂ© Security.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftÂ© Security.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

MicrosoftÂ© Security.exe

pid	process
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe
2800	MicrosoftÂ© Security.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MicrosoftÂ© Security.exe

description pid process

Token: SeDebugPrivilege 2800 MicrosoftÂ© Security.exe

description	pid	process
Token: SeDebugPrivilege	2800	MicrosoftÂ© Security.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exeMicrosoftÂ© Security.exe

description	pid	process	target process
PID 1092 wrote to memory of 2800	1092	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe	MicrosoftÂ© Security.exe
PID 1092 wrote to memory of 2800	1092	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe	MicrosoftÂ© Security.exe
PID 1092 wrote to memory of 2800	1092	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe	MicrosoftÂ© Security.exe
PID 1092 wrote to memory of 2800	1092	2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe	MicrosoftÂ© Security.exe
PID 2800 wrote to memory of 2720	2800	MicrosoftÂ© Security.exe	netsh.exe
PID 2800 wrote to memory of 2720	2800	MicrosoftÂ© Security.exe	netsh.exe
PID 2800 wrote to memory of 2720	2800	MicrosoftÂ© Security.exe	netsh.exe
PID 2800 wrote to memory of 2720	2800	MicrosoftÂ© Security.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe
"C:\Users\Admin\AppData\Local\Temp\2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Windows\MicrosoftÂ© Security.exe
  "C:\Windows\MicrosoftÂ© Security.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\MicrosoftÂ© Security.exe" "MicrosoftÂ© Security.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2720

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

C:\Windows\MicrosoftÂ© Security.exe

Filesize
297KB

MD5
e7019b9470a3429ed56932e348a16b28

SHA1
518b13eba11c699b053f45e5316d5cbbe3d346b8

SHA256
2757cb1d516aca0487074d0ec72ec62782d110db8b8e9c89e65362e6772517c9

SHA512
8bf818148e4dc084494e36fcb52c27df00237dd40f5c6171b56c1d78d334e636a317f3d8589c7889ca77478585eac06a8c9c50c82749f409a08fa9f1ef7583e7

Download Submit
memory/1092-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/1092-1-0x00000000003C0000-0x0000000000410000-memory.dmp

Filesize
320KB

Download
memory/1092-2-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/1092-3-0x0000000000360000-0x000000000036E000-memory.dmp

Filesize
56KB

Download
memory/1092-8-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/1092-13-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/2800-12-0x0000000000B50000-0x0000000000BA0000-memory.dmp

Filesize
320KB

Download
memory/2800-11-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/2800-14-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/2800-15-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/2800-17-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads