Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2024, 05:01

General

  • Target

    17647852d0cdce2aae192bc3709b93fc028c274b3253c2b9cf03e22b37789d90N.exe

  • Size

    185KB

  • MD5

    f2b20e5ae6941e7dad2bf09c532eb740

  • SHA1

    418a6a0c4579335f541edd6c3b725f6656387e65

  • SHA256

    17647852d0cdce2aae192bc3709b93fc028c274b3253c2b9cf03e22b37789d90

  • SHA512

    1a3b9c73475db71bddaa26e837e8c531272a44fdbba4c77aa09f6aa3823ed6c2cd74f2b8dc12088af385afc2333f66b3a801136f34e8e0ef276516c8d0aca172

  • SSDEEP

    3072:C7cWbk8outfL9f9sm2IyF4yrA/HDZFZhHNbAZ:CFRoSf5f4/c97hHN

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Runs net.exe
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\17647852d0cdce2aae192bc3709b93fc028c274b3253c2b9cf03e22b37789d90N.exe
    "C:\Users\Admin\AppData\Local\Temp\17647852d0cdce2aae192bc3709b93fc028c274b3253c2b9cf03e22b37789d90N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3272
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\A057.tmp\y.bat" "C:\Users\Admin\AppData\Local\Temp\""
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4792
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v Microsoft_Office /t REG_SZ /d "C:\Windows\word.exe -hide"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2300
      • C:\Windows\SysWOW64\net.exe
        net stop "Security Center"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1492
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Security Center"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2032
      • C:\Windows\SysWOW64\net.exe
        net stop "Firewall de Windows/Conexi?n compartida a Internet (ICS)"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3800
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Firewall de Windows/Conexi?n compartida a Internet (ICS)"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2016
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall set opmode mode=disable
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2340
      • C:\Windows\SysWOW64\net.exe
        net stop "MsMpEng"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4596
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "MsMpEng"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1644
      • C:\Windows\SysWOW64\net.exe
        net stop "MSASCui"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2368
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "MSASCui"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4568
      • C:\Windows\SysWOW64\taskkill.exe
        Taskkill /f /IM MsMpEng.exe /IM MSASCui.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2488
      • C:\Windows\SysWOW64\attrib.exe
        attrib -H -S -R *.*
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\A057.tmp\y.bat

    Filesize

    12KB

    MD5

    4b5cc1b45d8fecd590d8490d0f0b6f2a

    SHA1

    dd5f27e0552fda7a807cb30a615715f5cd44f881

    SHA256

    da6f172fc4a7a9a4f5d270c7a811633d7a1bd984a9848f490931ba5fe8d0f34b

    SHA512

    eab6e97771288c35eb0b27741fc96b6554bf650cb004b1a87f3916060e7015176dcdab5adf262fcea9476a48bb0a4a70f18c1eff03031ea0d0a67ac64faf2721

  • memory/3272-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3272-9-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB