Resubmissions

23/07/2024, 02:45

240723-c8wx2stdrk 10

23/07/2024, 02:44

240723-c8mdlstarb 10

Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/07/2024, 02:45

General

  • Target

    winPEASx64.exe

  • Size

    2.3MB

  • MD5

    c8571c7b6618bc375e8f44f620087ecf

  • SHA1

    80f6d4fc3490db93ce159e4316f722946b16d4af

  • SHA256

    601d45d6171a926d6b78ea4c609858269ec357dc8d52eb05fccba2b81c160110

  • SHA512

    0e401349940807a9c01cddb08ba81ea76583b327402f7436e39e14199dd2955d0471d3e30a9af096d0d1357101b4b42eb59f1b7ccd184ea7e28aabafd721bc5a

  • SSDEEP

    24576:GmhVNthfzNX8l29eZCqfPqvx0uNKkThXHL5gjbG5:ZVRRX8s9eZPXu4kBHL5gX

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\winPEASx64.exe
    "C:\Users\Admin\AppData\Local\Temp\winPEASx64.exe"
    1⤵
    • Checks whether UAC is enabled
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Windows\SYSTEM32\systeminfo.exe
      "systeminfo.exe"
      2⤵
      • Gathers system information
      PID:3276
    • C:\Windows\SYSTEM32\netsh.exe
      "netsh" wlan show profiles
      2⤵
      • Event Triggered Execution: Netsh Helper DLL
      PID:3668
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" # Check if appcmd.exe exists if (Test-Path ('C:\Windows\system32\inetsrv\appcmd.exe')) { # Create data table to house results $DataTable = New-Object System.Data.DataTable # Create and name columns in the data table $Null = $DataTable.Columns.Add('user') $Null = $DataTable.Columns.Add('pass') $Null = $DataTable.Columns.Add('type') $Null = $DataTable.Columns.Add('vdir') $Null = $DataTable.Columns.Add('apppool') # Get list of application pools Invoke-Expression 'C:\Windows\system32\inetsrv\appcmd.exe list apppools /text:name' | ForEach-Object { # Get application pool name $PoolName = $_ # Get username $PoolUserCmd = 'C:\Windows\system32\inetsrv\appcmd.exe list apppool ' + $PoolName + ' /text:processmodel.username' $PoolUser = Invoke-Expression $PoolUserCmd # Get password $PoolPasswordCmd = 'C:\Windows\system32\inetsrv\appcmd.exe list apppool ' + $PoolName + ' /text:processmodel.password' $PoolPassword = Invoke-Expression $PoolPasswordCmd # Check if credentials exists if (($PoolPassword -ne '') -and ($PoolPassword -isnot [system.array])) { # Add credentials to database $Null = $DataTable.Rows.Add($PoolUser, $PoolPassword,'Application Pool','NA',$PoolName) } } # Get list of virtual directories Invoke-Expression 'C:\Windows\system32\inetsrv\appcmd.exe list vdir /text:vdir.name' | ForEach-Object { # Get Virtual Directory Name $VdirName = $_ # Get username $VdirUserCmd = 'C:\Windows\system32\inetsrv\appcmd.exe list vdir ' + $VdirName + ' /text:userName' $VdirUser = Invoke-Expression $VdirUserCmd # Get password $VdirPasswordCmd = 'C:\Windows\system32\inetsrv\appcmd.exe list vdir ' + $VdirName + ' /text:password' $VdirPassword = Invoke-Expression $VdirPasswordCmd # Check if credentials exists if (($VdirPassword -ne '') -and ($VdirPassword -isnot [system.array])) { # Add credentials to database $Null = $DataTable.Rows.Add($VdirUser, $VdirPassword,'Virtual Directory',$VdirName,'NA') } } # Check if any passwords were found if( $DataTable.rows.Count -gt 0 ) { # Display results in list view that can feed into the pipeline #$DataTable | Sort-Object type,user,pass,vdir,apppool | Select-Object user,pass,type,vdir,apppool -Unique $DataTable | Select-Object user,pass,type,vdir,apppool } else { # Status user Write-host 'No application pool or virtual directory passwords were found.' } }
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_imvbs2jg.qjl.ps1

    Filesize

    1B

    MD5

    c4ca4238a0b923820dcc509a6f75849b

    SHA1

    356a192b7913b04c54574d18c28d46e6395428ab

    SHA256

    6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

    SHA512

    4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

  • memory/1644-8-0x0000021ECC7A0000-0x0000021ECC7C2000-memory.dmp

    Filesize

    136KB

  • memory/1644-11-0x0000021EE4ED0000-0x0000021EE4F46000-memory.dmp

    Filesize

    472KB

  • memory/2280-1-0x00007FFBFFDA0000-0x00007FFC00099000-memory.dmp

    Filesize

    3.0MB

  • memory/2280-0-0x000001DFF2EF0000-0x000001DFF313C000-memory.dmp

    Filesize

    2.3MB

  • memory/2280-2-0x000001DFF5530000-0x000001DFF557A000-memory.dmp

    Filesize

    296KB

  • memory/2280-3-0x00007FFBFFDA0000-0x00007FFC00099000-memory.dmp

    Filesize

    3.0MB

  • memory/2280-29-0x000001DFF6B40000-0x000001DFF6D02000-memory.dmp

    Filesize

    1.8MB

  • memory/2280-30-0x00007FFBFFDA0000-0x00007FFC00099000-memory.dmp

    Filesize

    3.0MB