Analysis

  • max time kernel
    146s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/05/2024, 16:49

General

  • Target

    emsO.exe

  • Size

    884KB

  • MD5

    c47a7fef0ab6068c68877022965dc13d

  • SHA1

    468d6112130fc9b58092db88611d2ad53cb33a06

  • SHA256

    831f2c4f9ffdcd8a730f72abd1b8a2a716eded13ef33876ed6f704d09027033d

  • SHA512

    f2e7d82f30b359b7d55f99c1fcd5a5680376e3c26b9b10b74f5ee6789480d7f4ab3586d62a85d446db9ba019528b77c4069765ea258c3f2df742f974c07a6d03

  • SSDEEP

    12288:fChkTeH81jJUS5ZsNXTkuF/bbXEQoR1aWX9MbGU6qG/ux5VWYcvyE1tHiwSQYiMo:I8MS5ETzbb6trU6x/ux5VWYcj3

Score
5/10

Malware Config

Signatures

  • Suspicious use of SetThreadContext 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3364
    • C:\Users\Admin\AppData\Local\Temp\emsO.exe
      "C:\Users\Admin\AppData\Local\Temp\emsO.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5080
      • C:\Users\Admin\AppData\Local\Temp\emsO.exe
        "C:\Users\Admin\AppData\Local\Temp\emsO.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:1920
    • C:\Windows\SysWOW64\unlodctr.exe
      "C:\Windows\SysWOW64\unlodctr.exe"
      2⤵
      • Modifies Internet Explorer settings
      PID:2908
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:628
    • 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 --mojo-platform-channel-handle=4080 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3952

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1920-18-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1920-22-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1920-23-0x0000000004CC0000-0x0000000004CE3000-memory.dmp

        Filesize

        140KB

      • memory/1920-12-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1920-15-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1920-19-0x0000000004CC0000-0x0000000004CE3000-memory.dmp

        Filesize

        140KB

      • memory/1920-17-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/1920-16-0x00000000014D0000-0x000000000181A000-memory.dmp

        Filesize

        3.3MB

      • memory/2908-20-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

        Filesize

        252KB

      • memory/2908-21-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

        Filesize

        252KB

      • memory/2908-26-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

        Filesize

        252KB

      • memory/2908-24-0x0000000000AC0000-0x0000000000AFF000-memory.dmp

        Filesize

        252KB

      • memory/3364-25-0x0000000007890000-0x000000000796E000-memory.dmp

        Filesize

        888KB

      • memory/5080-5-0x0000000007770000-0x000000000777A000-memory.dmp

        Filesize

        40KB

      • memory/5080-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

        Filesize

        4KB

      • memory/5080-7-0x00000000090E0000-0x0000000009100000-memory.dmp

        Filesize

        128KB

      • memory/5080-6-0x0000000007880000-0x000000000791C000-memory.dmp

        Filesize

        624KB

      • memory/5080-9-0x0000000009120000-0x0000000009136000-memory.dmp

        Filesize

        88KB

      • memory/5080-4-0x0000000074B80000-0x0000000075330000-memory.dmp

        Filesize

        7.7MB

      • memory/5080-3-0x00000000075B0000-0x0000000007642000-memory.dmp

        Filesize

        584KB

      • memory/5080-8-0x0000000009110000-0x0000000009120000-memory.dmp

        Filesize

        64KB

      • memory/5080-2-0x0000000007AC0000-0x0000000008064000-memory.dmp

        Filesize

        5.6MB

      • memory/5080-14-0x0000000074B80000-0x0000000075330000-memory.dmp

        Filesize

        7.7MB

      • memory/5080-1-0x0000000000620000-0x0000000000700000-memory.dmp

        Filesize

        896KB

      • memory/5080-11-0x00000000094B0000-0x000000000953A000-memory.dmp

        Filesize

        552KB

      • memory/5080-10-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

        Filesize

        4KB