Analysis

  • max time kernel
    77s
  • max time network
    82s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/07/2023, 00:26

General

  • Target

    https://expolivingbolivar.com/will/script.a3x

Score
1/10

Malware Config

Signatures

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 3 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 33 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 22 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://expolivingbolivar.com/will/script.a3x
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa25e09758,0x7ffa25e09768,0x7ffa25e09778
      2⤵
        PID:3380
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2188 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:8
        2⤵
          PID:4972
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2140 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:8
          2⤵
            PID:4500
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1656 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:2
            2⤵
              PID:4388
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3108 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:1
              2⤵
                PID:1172
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3092 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:1
                2⤵
                  PID:1268
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5144 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:8
                  2⤵
                    PID:1444
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5352 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:8
                    2⤵
                      PID:3312
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5408 --field-trial-handle=1856,i,18240328134333900890,3294840253990389567,131072 /prefetch:8
                      2⤵
                        PID:5008
                    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                      1⤵
                        PID:3196
                      • C:\Windows\system32\OpenWith.exe
                        C:\Windows\system32\OpenWith.exe -Embedding
                        1⤵
                        • Modifies registry class
                        • Suspicious use of SetWindowsHookEx
                        PID:4540
                      • C:\Windows\System32\rundll32.exe
                        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                        1⤵
                          PID:4444
                        • C:\Windows\system32\OpenWith.exe
                          C:\Windows\system32\OpenWith.exe -Embedding
                          1⤵
                          • Modifies registry class
                          • Suspicious behavior: GetForegroundWindowSpam
                          • Suspicious use of SetWindowsHookEx
                          PID:1008
                          • C:\Windows\system32\NOTEPAD.EXE
                            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\script.a3x
                            2⤵
                            • Opens file in notepad (likely ransom note)
                            PID:3828

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

                          Filesize

                          1KB

                          MD5

                          8a1f10db01712b967f0b0c64630514ea

                          SHA1

                          9ab7f67e389d59c3808f67677f1604eeaa4f88fc

                          SHA256

                          c72e0efda77f6c080a79dfb342cd2d5741f04a387b03a8df8614e2581ce2a90e

                          SHA512

                          5e244e65286b42d840b3c125c8520c18b5c6abbd45835b58eaf3630b66a8f4aa2bc289c7d980bcc37a7975848a3f1f96a4e673a01bde0ae392c3d59b3f8043c8

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                          Filesize

                          6KB

                          MD5

                          122d06029d17a76326400233b53029af

                          SHA1

                          149ff6339c8b26d239a0a3566db56ddea4805bfa

                          SHA256

                          dc227f3acd26377a16edeb969b5b2d86058193178904921f1e0cc6074d248009

                          SHA512

                          a27ac0b4e43391727d596e11e46b36b18054c9194abc7cc78c83b15b718c397a379e27694683077985b9e4941c0296ae2f7c5dfc1be5b62403393ce60360c9ee

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                          Filesize

                          87KB

                          MD5

                          5b1fae6079bc7c6d70fa9ac708467935

                          SHA1

                          b230a22672aa237c8ba93b185dcf1a62ca053d76

                          SHA256

                          1aa5e5756935db6b5f46a06cae20c3ff95232b6faf9cba285b6cb13466df5389

                          SHA512

                          fde95b6bf4cea09deffeb95a3a76fa49bfe920a10d939cfaca4edc97bab296923ac8a7b63b9b8b2f329789c4cef524a8b875c1e04707bd000f216bd2a28632b6

                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

                          Filesize

                          2B

                          MD5

                          99914b932bd37a50b983c5e7c90ae93b

                          SHA1

                          bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                          SHA256

                          44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                          SHA512

                          27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

                        • C:\Users\Admin\Downloads\script.a3x

                          Filesize

                          146KB

                          MD5

                          c590e42373ad159cfebefb0ad5f13f34

                          SHA1

                          6d55b551f01ed3dfe5e3b5be8c021593b4949705

                          SHA256

                          49eec97300e15eb4c10e35af0a1762413f47edaee24fa345f870890a7c0a0220

                          SHA512

                          447d491423d21a1e6ace43d8e4f9fc3f9fc16ee2a8711f97098df5d14684e43f0762767663ae05ae86ce56dc150e047ec1b28e18df4a82e2138fee7e6694b6d3

                        • C:\Users\Admin\Downloads\script.a3x

                          Filesize

                          146KB

                          MD5

                          c590e42373ad159cfebefb0ad5f13f34

                          SHA1

                          6d55b551f01ed3dfe5e3b5be8c021593b4949705

                          SHA256

                          49eec97300e15eb4c10e35af0a1762413f47edaee24fa345f870890a7c0a0220

                          SHA512

                          447d491423d21a1e6ace43d8e4f9fc3f9fc16ee2a8711f97098df5d14684e43f0762767663ae05ae86ce56dc150e047ec1b28e18df4a82e2138fee7e6694b6d3