Analysis

  • max time kernel
    294s
  • max time network
    306s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 05:39

General

  • Target

    mason.exe

  • Size

    37KB

  • MD5

    a0f12925c12879a07c9be4ab0af9403b

  • SHA1

    4c51dd1593f37b84e8a8f862bc3331a4e346e10c

  • SHA256

    085c75ce23e613be57511c5a2dc46b27ae0311ba058e7299ffdbf0226047b3e9

  • SHA512

    9c33817572ff1ae66dafb7f6b589ad48fa62831738fc02240969f7df47895f55d257a35ed38f13b6d1b288d67fa68a6173c2344088bdaec880d2d4cbec538765

  • SSDEEP

    384:WmOs0IiejvCVLO309QmykrtG+dA+VfwvOSifrAF+rMRTyN/0L+EcoinblneHQM3X:wFdGdkrgYRwWS0rM+rMRa8NuIuELt

Score
8/10

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mason.exe
    "C:\Users\Admin\AppData\Local\Temp\mason.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3652
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\mason.exe" "mason.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      PID:3988
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\AppData\Local\Temp\tmp1090.tmp.webp
      2⤵
        PID:3908
    • 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=3956 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3184
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=18 --mojo-platform-channel-handle=1344 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:1
        1⤵
          PID:1632
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=19 --mojo-platform-channel-handle=3880 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:1
          1⤵
            PID:1628
          • 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=5680 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
            1⤵
              PID:5032
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --mojo-platform-channel-handle=5324 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:1
              1⤵
                PID:2952
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --no-appcompat-clear --mojo-platform-channel-handle=4072 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
                1⤵
                  PID:3256
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --lang=en-US --service-sandbox-type=collections --no-appcompat-clear --mojo-platform-channel-handle=5992 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
                  1⤵
                    PID:1304

                  Network

                  MITRE ATT&CK Matrix ATT&CK v13

                  Persistence

                  Create or Modify System Process

                  1
                  T1543

                  Windows Service

                  1
                  T1543.003

                  Privilege Escalation

                  Create or Modify System Process

                  1
                  T1543

                  Windows Service

                  1
                  T1543.003

                  Defense Evasion

                  Impair Defenses

                  1
                  T1562

                  Disable or Modify System Firewall

                  1
                  T1562.004

                  Discovery

                  System Information Discovery

                  1
                  T1082

                  Command and Control

                  Web Service

                  1
                  T1102

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • memory/3652-0-0x00000000754C2000-0x00000000754C3000-memory.dmp
                    Filesize

                    4KB

                  • memory/3652-1-0x00000000754C0000-0x0000000075A71000-memory.dmp
                    Filesize

                    5.7MB

                  • memory/3652-2-0x00000000754C0000-0x0000000075A71000-memory.dmp
                    Filesize

                    5.7MB

                  • memory/3652-3-0x00000000754C2000-0x00000000754C3000-memory.dmp
                    Filesize

                    4KB

                  • memory/3652-4-0x00000000754C0000-0x0000000075A71000-memory.dmp
                    Filesize

                    5.7MB

                  • memory/3652-5-0x00000000754C0000-0x0000000075A71000-memory.dmp
                    Filesize

                    5.7MB

                  • memory/3652-6-0x00000000754C0000-0x0000000075A71000-memory.dmp
                    Filesize

                    5.7MB

                  • memory/3652-7-0x00000000754C0000-0x0000000075A71000-memory.dmp
                    Filesize

                    5.7MB