Analysis

  • max time kernel
    1794s
  • max time network
    1812s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    02/03/2024, 22:10

General

  • Target

    $R0/Uninstall Lunar Client.exe

  • Size

    404KB

  • MD5

    227c1f9fe7c7f6fb24a451a5ca84e722

  • SHA1

    9c34be548c0b2affd930d05c1b315a5cbe9bca45

  • SHA256

    bafcf2b563e935de1c9d2d55413d25b9a06a8ee8b4cdab49ba7bfe0bfb5c668a

  • SHA512

    1fde79719e176eaa9f23211f9679d5406c219b2ae074227306001ea88c3c2f10c1ed1e0e52b10bc1e0ca9adc4cdc82d2da474ce7e59defaae816655ddc0fce66

  • SSDEEP

    3072:Wn77v00hEoDEtauTsqBGeQIfxqxAjDsksbfVl1snhl+l2L0Sa9/l7a4vZAzLmDVH:W740IEa+J+Rql1DKs2t0EyL+ya2

Score
4/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe
    "C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3860
  • 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=es --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3660 --field-trial-handle=2236,i,3767879903388292704,1374608533225245713,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3872
    • 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=es --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3744 --field-trial-handle=2236,i,3767879903388292704,1374608533225245713,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3668

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\nsm72CF.tmp\System.dll

              Filesize

              12KB

              MD5

              0d7ad4f45dc6f5aa87f606d0331c6901

              SHA1

              48df0911f0484cbe2a8cdd5362140b63c41ee457

              SHA256

              3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

              SHA512

              c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

            • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

              Filesize

              404KB

              MD5

              227c1f9fe7c7f6fb24a451a5ca84e722

              SHA1

              9c34be548c0b2affd930d05c1b315a5cbe9bca45

              SHA256

              bafcf2b563e935de1c9d2d55413d25b9a06a8ee8b4cdab49ba7bfe0bfb5c668a

              SHA512

              1fde79719e176eaa9f23211f9679d5406c219b2ae074227306001ea88c3c2f10c1ed1e0e52b10bc1e0ca9adc4cdc82d2da474ce7e59defaae816655ddc0fce66