Analysis

  • max time kernel
    0s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 03:03

General

  • Target

    25a2e9e53faa01b037238a4834387da2.exe

  • Size

    3.1MB

  • MD5

    25a2e9e53faa01b037238a4834387da2

  • SHA1

    0c01d526a60119d23fab35532425248d58e4270d

  • SHA256

    039c163b84e799dc7bb23021d74c20185f2bd826cbb4a1e0035991578637ee5d

  • SHA512

    2ec5ea4036267b3f917cab584bea51a98821dbaa9fbc440fa6028b9a36dbca3c8072e093e2d4fd297291cdcc138d2f11be67c1fea07b8a44896d992f57eef233

  • SSDEEP

    98304:o2mhtXP+pTDCrmHZ9Gy7dWHQJIuULiVzxDXwZjUEDYZT+FVim4e:aaTG6HzfznbCfDxVite

Score
8/10

Malware Config

Signatures

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Stops running service(s) 3 TTPs
  • Uses Session Manager for persistence 2 TTPs 3 IoCs

    Creates Session Manager registry key to run executable early in system boot.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25a2e9e53faa01b037238a4834387da2.exe
    "C:\Users\Admin\AppData\Local\Temp\25a2e9e53faa01b037238a4834387da2.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram C:\windows\system\win.exe RPCCC
      2⤵
      • Modifies Windows Firewall
      PID:3004
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      PID:4464
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      PID:224
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      PID:2736
    • C:\Windows\SysWOW64\sc.exe
      sc delete GbpSv
      2⤵
      • Launches sc.exe
      PID:4544
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn startt /tr c:\autoexec.bat /sc onstart /ru system
      2⤵
      • Creates scheduled task(s)
      PID:1920

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\windows\system\win.exe

    Filesize

    382KB

    MD5

    8648f2a6ef68120c21761af2cf2afcfc

    SHA1

    bab6d5424ed0d240f631ce5c6e6a9b89a83e00b4

    SHA256

    546ffb65664eecf3ce2cdbbc7abfb6c6615e8ea24eac20ac6351c6a2234b8b55

    SHA512

    985afc2f7196247421ef5a37ed491c360e40503c2f95cf7560b7676d7c3ee14188d553214aa86844dd7e1b2f431afbac6267983e9222887bc06c6eaeb23d3141

  • memory/2764-10-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-5-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-12-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-13-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-7-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-8-0x0000000002B40000-0x0000000002B41000-memory.dmp

    Filesize

    4KB

  • memory/2764-9-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-0-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-20-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-1-0x0000000002B40000-0x0000000002B41000-memory.dmp

    Filesize

    4KB

  • memory/2764-6-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-14-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-15-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-16-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-17-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-18-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-19-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB

  • memory/2764-11-0x0000000000400000-0x0000000000DAD000-memory.dmp

    Filesize

    9.7MB