Analysis

  • max time kernel
    0s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2023 07:02

General

  • Target

    2c9b02f70f403a77bf8bc134847eeaf5.exe

  • Size

    3.7MB

  • MD5

    2c9b02f70f403a77bf8bc134847eeaf5

  • SHA1

    aae89f708e380c270c0495491ab10e696920d5d8

  • SHA256

    eb4f5975f3707dd4747816a1df8ae426c53fa74ff5655fb735f65eac77312193

  • SHA512

    5a987dc54c1c4233f2fbe86feb0b8c926b3a72a162675600b34706bd995d0b4178d6035e001b253366f981feb6909f7c190e3f0568eb46f12c056093338d938f

  • SSDEEP

    98304:lWZ+WFlt0g9nfsTDTTa2zMiA4dHjrmtsxw9nn:luDj0g96nNzMiA4hmOw9n

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 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Launches sc.exe 1 IoCs

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

  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c9b02f70f403a77bf8bc134847eeaf5.exe
    "C:\Users\Admin\AppData\Local\Temp\2c9b02f70f403a77bf8bc134847eeaf5.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2404
    • 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:2756
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram C:\windows\system\system.exe RPCCC
      2⤵
      • Modifies Windows Firewall
      PID:2640
    • 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:2720
    • 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:2860
    • C:\Windows\SysWOW64\sc.exe
      sc delete GbpSv
      2⤵
      • Launches sc.exe
      PID:3040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2404-2-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-9-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-10-0x0000000075250000-0x0000000075259000-memory.dmp

    Filesize

    36KB

  • memory/2404-11-0x0000000000250000-0x0000000000252000-memory.dmp

    Filesize

    8KB

  • memory/2404-8-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-7-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-15-0x0000000075370000-0x000000007537C000-memory.dmp

    Filesize

    48KB

  • memory/2404-18-0x0000000074CB0000-0x0000000074CB7000-memory.dmp

    Filesize

    28KB

  • memory/2404-17-0x0000000074C30000-0x0000000074C7F000-memory.dmp

    Filesize

    316KB

  • memory/2404-16-0x0000000076310000-0x0000000076316000-memory.dmp

    Filesize

    24KB

  • memory/2404-14-0x00000000763B0000-0x00000000764A0000-memory.dmp

    Filesize

    960KB

  • memory/2404-13-0x0000000075510000-0x000000007551A000-memory.dmp

    Filesize

    40KB

  • memory/2404-12-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2404-6-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-5-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-4-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-3-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-1-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-0-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-19-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-20-0x000000007EF50000-0x000000007EFAC000-memory.dmp

    Filesize

    368KB

  • memory/2404-21-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-23-0x0000000075510000-0x000000007551A000-memory.dmp

    Filesize

    40KB

  • memory/2404-22-0x0000000000250000-0x0000000000252000-memory.dmp

    Filesize

    8KB

  • memory/2404-24-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2404-25-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-26-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-27-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-28-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-29-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-32-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-33-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-35-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-36-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB

  • memory/2404-37-0x0000000000400000-0x0000000000A92000-memory.dmp

    Filesize

    6.6MB