njrat | e456dd25db07bcd5b9fdabfca9124d964d2cc4c2ea1826ceeb380b45c2208068

Analysis

max time kernel
104s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 16:17

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General

Target

Client.exe
Size

156KB
MD5

66fe5a1d3958bdc41af36b742f5b0116
SHA1

976487aabbc04e030023ee72e455be1d48da4dfc
SHA256

e456dd25db07bcd5b9fdabfca9124d964d2cc4c2ea1826ceeb380b45c2208068
SHA512

a1018ed48e3b622c514b1636693d378941cb99e23054dbd69b2939cb928ee6b807e39d44d7bcc721e6bb1a15599931a3df60d203992de5d65a0d2c038a3f6d3f
SSDEEP

3072:k96q4hqGnhr1k3k+6pskWuHxl23eHnE07L31TOAM8J:ky1k0lppjRlxHn9TO

Score

10^/10

njrat evasion persistence trojan

Malware Config

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
2996	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\65aae4c0435d91f223c7162998af570d.exe	Client.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\65aae4c0435d91f223c7162998af570d.exe	Client.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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\65aae4c0435d91f223c7162998af570d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Client.exe\" .."	Client.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\65aae4c0435d91f223c7162998af570d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Client.exe\" .."	Client.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe
Token: 33	4076	Client.exe
Token: SeIncBasePriorityPrivilege	4076	Client.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 2996	4076	Client.exe	88
PID 4076 wrote to memory of 2996	4076	Client.exe	88
PID 4076 wrote to memory of 2996	4076	Client.exe	88

C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Client.exe" "Client.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  PID:2996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4076-0-0x0000000074C30000-0x00000000751E1000-memory.dmp

Filesize
5.7MB

Download
memory/4076-1-0x0000000000A70000-0x0000000000A80000-memory.dmp

Filesize
64KB

Download
memory/4076-2-0x0000000074C30000-0x00000000751E1000-memory.dmp

Filesize
5.7MB

Download
memory/4076-6-0x0000000074C30000-0x00000000751E1000-memory.dmp

Filesize
5.7MB

Download
memory/4076-7-0x0000000000A70000-0x0000000000A80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads