Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 20:12

General

  • Target

    file.exe

  • Size

    6.1MB

  • MD5

    015213997f4a1fc3503b19e2356738b2

  • SHA1

    c24933a5005cc58fdacced124f93adb74c23748b

  • SHA256

    b674f985f144f65b754715572db0cb17c0db762eb6d5217fbb93b15433572d97

  • SHA512

    148e3833dd853881b5e8231fca26ba947dca9f5c0e783362c9afc97c10ee4bb392c26ecab57d90bdbaae8a39bc937798a2864cbdd92ef490af674a612863ddd4

  • SSDEEP

    98304:tYweRLoL6mNCxDD/JXZU44RXgYja8MTyMfHN:9eRrmkRy5pjuT/N

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4340
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\file.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4808
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2452
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "$ws = New-Object -ComObject WScript.Shell; $s = $ws.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nexus.lnk'); $s.TargetPath = 'C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe'; $s.Save()"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Drops startup file
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3132

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          d85ba6ff808d9e5444a4b369f5bc2730

          SHA1

          31aa9d96590fff6981b315e0b391b575e4c0804a

          SHA256

          84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

          SHA512

          8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          1KB

          MD5

          0f6a3762a04bbb03336fb66a040afb97

          SHA1

          0a0495c79f3c8f4cb349d82870ad9f98fbbaac74

          SHA256

          36e2fac0ab8aee32e193491c5d3df9374205e328a74de5648e7677eae7e1b383

          SHA512

          cc9ebc020ec18013f8ab4d6ca5a626d54db84f8dc2d97e538e33bb9a673344a670a2580346775012c85f204472f7f4dd25a34e59f1b827642a21db3325424b69

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3wtbqhqj.hge.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/2452-9-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-8-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-42-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-40-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-7-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-6-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-10-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/2452-4-0x0000000000400000-0x00000000007AA000-memory.dmp

          Filesize

          3.7MB

        • memory/4340-1-0x00007FFD857F3000-0x00007FFD857F5000-memory.dmp

          Filesize

          8KB

        • memory/4340-3-0x000001366D030000-0x000001366D3A4000-memory.dmp

          Filesize

          3.5MB

        • memory/4340-2-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

          Filesize

          10.8MB

        • memory/4340-41-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

          Filesize

          10.8MB

        • memory/4340-0-0x0000013652C40000-0x0000013652C48000-memory.dmp

          Filesize

          32KB

        • memory/4808-23-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

          Filesize

          10.8MB

        • memory/4808-18-0x000002605E910000-0x000002605E932000-memory.dmp

          Filesize

          136KB

        • memory/4808-11-0x00007FFD857F3000-0x00007FFD857F5000-memory.dmp

          Filesize

          8KB

        • memory/4808-39-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

          Filesize

          10.8MB

        • memory/4808-12-0x00007FFD857F0000-0x00007FFD862B1000-memory.dmp

          Filesize

          10.8MB