njrat | f911a357abf083c321d7240e1070b470c9d2a64c1503700dbec45980c88c0aa4

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2024, 12:30

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General

Target
windows registry.exe
Size 23KB
Sample240531-pphmjahe83
SHA256 6f788d9f8b51ba8321f1837e02d10c5d94efc74c7be26f734c34a4d602b8d1bc
MD5 0e61e56cab42baa9ac421252c13809ed
SHA1 f058e2efd1181d5285eef36fa2bae9658ccc20f9
SHA512 e5cd90240468d86f5230d1c9f7c355c32cdbf3b5a0c041914d009c8145d260f469f75cf28e2b307964c64b6c6255a6fc6e258b5bb6525b50824365227c38e624
SSDEEP 384:3oWSkWHa55BgDVRGipkItzY6vZg36Eh7FpmRvR6JZlbw8hqIusZzZPZ:QJuk9pHRpcnuS
MD5 SHA1 SHA512 SSDEEP

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
512	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b3c87226fd3a4e8b8191141ea7a593c.exe	windows registry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b3c87226fd3a4e8b8191141ea7a593c.exe	windows registry.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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b3c87226fd3a4e8b8191141ea7a593c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows registry.exe\" .."	windows registry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8b3c87226fd3a4e8b8191141ea7a593c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows registry.exe\" .."	windows registry.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe
Token: 33	4288	windows registry.exe
Token: SeIncBasePriorityPrivilege	4288	windows registry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 512	4288	windows registry.exe	91
PID 4288 wrote to memory of 512	4288	windows registry.exe	91
PID 4288 wrote to memory of 512	4288	windows registry.exe	91

C:\Users\Admin\AppData\Local\Temp\windows registry.exe
"C:\Users\Admin\AppData\Local\Temp\windows registry.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows registry.exe" "windows registry.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  PID:512

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/4288-0-0x0000000074C42000-0x0000000074C43000-memory.dmp

Download

memory/4288-1-0x0000000074C40000-0x00000000751F1000-memory.dmp

Download

memory/4288-2-0x0000000074C40000-0x00000000751F1000-memory.dmp

Download

memory/4288-4-0x0000000074C42000-0x0000000074C43000-memory.dmp

Download

memory/4288-5-0x0000000074C40000-0x00000000751F1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads