njrat | e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3ca

General

Target

e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe
Size

23KB
MD5

f7ec84243a7953d564c41befb8ba38f0
SHA1

0bf331de5438d673ecc74ce6ad69d71925d99cc9
SHA256

e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3ca
SHA512

3e36a6bd70c6b4d134c7022e50a0137b0a54b0a098f42e584af97bf9fe204523f2bf255e6592fcfcc392009b5ad14d6eac07c71471b98a7edf37b1467421ff94
SSDEEP

384:ioWtkEwn65rgjAsGipk55D16HgXakhbZD0mRvR6JZlbw8hqIusZzZIr:l7O89pErRpcnup

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

pid	Process
4064	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe

Executes dropped EXE 1 IoCs

pid	Process
4296	server.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"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	e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.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	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe
Token: 33	4296	server.exe
Token: SeIncBasePriorityPrivilege	4296	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 4296	5112	e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe	94
PID 5112 wrote to memory of 4296	5112	e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe	94
PID 5112 wrote to memory of 4296	5112	e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe	94
PID 4296 wrote to memory of 4064	4296	server.exe	100
PID 4296 wrote to memory of 4064	4296	server.exe	100
PID 4296 wrote to memory of 4064	4296	server.exe	100

C:\Users\Admin\AppData\Local\Temp\e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe
"C:\Users\Admin\AppData\Local\Temp\e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3caN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112
- 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:4296
- - 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:4064

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\server.exe

Filesize
23KB

MD5
f7ec84243a7953d564c41befb8ba38f0

SHA1
0bf331de5438d673ecc74ce6ad69d71925d99cc9

SHA256
e2e53f578f8c9010f6143c77853f1f56891ca7b24054229a505ef2023f17b3ca

SHA512
3e36a6bd70c6b4d134c7022e50a0137b0a54b0a098f42e584af97bf9fe204523f2bf255e6592fcfcc392009b5ad14d6eac07c71471b98a7edf37b1467421ff94

Download Submit
memory/4296-12-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-14-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-15-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5112-0-0x0000000074BF2000-0x0000000074BF3000-memory.dmp

Filesize
4KB

Download
memory/5112-1-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5112-2-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/5112-13-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads