njrat | dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320f

General

Target

dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe
Size

31KB
MD5

d1fff5d5b5661647fd95a87e497fbd10
SHA1

68563815edb3943b69e446dc0643cc39059819b5
SHA256

dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320f
SHA512

c9d8bb48d934fcbe8a3e95e9e02e188f0c372e549816297b86d3f05d284c2dc443bded37fb5176fc585f5e42ffb56475737d6a961f59d7646ac16e98ca4bd63c
SSDEEP

768:zDMXZwpJbb2zxxO5oaqHhisfvagQmIDUu0tiicj:UkKZisrQVkaj

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
2008	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

Processes:

dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe

Drops startup file 2 IoCs

Processes:

WindowsServices.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\266d34e804b5bdc8c81bfaefe4d0b785.exe	WindowsServices.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\266d34e804b5bdc8c81bfaefe4d0b785.exe	WindowsServices.exe

Executes dropped EXE 1 IoCs

Processes:

WindowsServices.exe

pid	Process
1184	WindowsServices.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

WindowsServices.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\266d34e804b5bdc8c81bfaefe4d0b785 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsServices.exe\" .."	WindowsServices.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\266d34e804b5bdc8c81bfaefe4d0b785 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsServices.exe\" .."	WindowsServices.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 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

Processes:

dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exeWindowsServices.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsServices.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

WindowsServices.exe

description	pid	Process
Token: SeDebugPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe
Token: 33	1184	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	1184	WindowsServices.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exeWindowsServices.exe

description	pid	Process	procid_target
PID 4788 wrote to memory of 1184	4788	dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe	86
PID 4788 wrote to memory of 1184	4788	dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe	86
PID 4788 wrote to memory of 1184	4788	dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe	86
PID 1184 wrote to memory of 2008	1184	WindowsServices.exe	90
PID 1184 wrote to memory of 2008	1184	WindowsServices.exe	90
PID 1184 wrote to memory of 2008	1184	WindowsServices.exe	90

C:\Users\Admin\AppData\Local\Temp\dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe
"C:\Users\Admin\AppData\Local\Temp\dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320fN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsServices.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:1184
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe" "WindowsServices.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2008

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

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:\Users\Admin\AppData\Local\Temp\WindowsServices.exe

Filesize
31KB

MD5
d1fff5d5b5661647fd95a87e497fbd10

SHA1
68563815edb3943b69e446dc0643cc39059819b5

SHA256
dcf024f3359c3a752e582c5a6a2efdb0748aa87f8ef168f623f4140b184d320f

SHA512
c9d8bb48d934fcbe8a3e95e9e02e188f0c372e549816297b86d3f05d284c2dc443bded37fb5176fc585f5e42ffb56475737d6a961f59d7646ac16e98ca4bd63c

Download Submit
memory/1184-13-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/1184-14-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/1184-15-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/1184-17-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/1184-18-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4788-0-0x0000000074C42000-0x0000000074C43000-memory.dmp

Filesize
4KB

Download
memory/4788-1-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4788-2-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download
memory/4788-12-0x0000000074C40000-0x00000000751F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads