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Analysis

  • max time kernel
    73s
  • max time network
    333s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    04/09/2023, 12:14

General

  • Target

    CrustaceanInstaller.exe

  • Size

    3.4MB

  • MD5

    bd3a90f3b268ac71630666bc7ce92406

  • SHA1

    cb6327b43c8209c1d30517b5be9a394bf73ec739

  • SHA256

    f296f08aa0ad60e857270505d931392943d95cf7a2ecb2e0245ff785c157ca49

  • SHA512

    11cc492ae8647376329965e610125aa956fe575d5bd3d3bedc9822f765b5ecf672b8ffa99685a004960b3ce7998670c6c67457660f352d42331750d0a20cf62e

  • SSDEEP

    49152:SSrSrtUT0/n2mmNu+d8dVKFpHY/o1pPcFxHLC5j9ljJrS9bbroKJeq0Tl:BNukXiFxbKl

Score
6/10

Malware Config

Signatures

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 7 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CrustaceanInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\CrustaceanInstaller.exe"
    1⤵
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1752 -s 936
      2⤵
      • Program crash
      PID:1244
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2648
    • 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=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6819758,0x7fef6819768,0x7fef6819778
      2⤵
        PID:2604
      • 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=1112 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:2
        2⤵
          PID:2572
        • 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=1504 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
          2⤵
            PID:2984
          • 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=1600 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
            2⤵
              PID:2056
            • 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=2252 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
              2⤵
                PID:1096
              • 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=2264 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                2⤵
                  PID:320
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=2664 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:2
                  2⤵
                    PID:2320
                  • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1444 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                    2⤵
                      PID:2292
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3440 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
                      2⤵
                        PID:2452
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3468 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
                        2⤵
                          PID:432
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3472 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
                          2⤵
                            PID:1788
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3460 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
                            2⤵
                              PID:1388
                            • 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=3552 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:8
                              2⤵
                                PID:1904
                              • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --mojo-platform-channel-handle=3908 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                2⤵
                                  PID:932
                                • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --mojo-platform-channel-handle=3936 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                  2⤵
                                    PID:1604
                                  • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --mojo-platform-channel-handle=3692 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                    2⤵
                                      PID:580
                                    • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --mojo-platform-channel-handle=3408 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                      2⤵
                                        PID:760
                                      • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=18 --mojo-platform-channel-handle=3556 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                        2⤵
                                          PID:3012
                                        • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --mojo-platform-channel-handle=2368 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                          2⤵
                                            PID:1276
                                          • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=20 --mojo-platform-channel-handle=3556 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                            2⤵
                                              PID:608
                                            • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=21 --mojo-platform-channel-handle=1032 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                              2⤵
                                                PID:1564
                                              • 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 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=22 --mojo-platform-channel-handle=2300 --field-trial-handle=1364,i,4517415624481187255,14796866055884817607,131072 /prefetch:1
                                                2⤵
                                                  PID:1824
                                              • 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:2836

                                                Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

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                                                Downloads

                                                • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                                                  Filesize

                                                  264KB

                                                  MD5

                                                  f50f89a0a91564d0b8a211f8921aa7de

                                                  SHA1

                                                  112403a17dd69d5b9018b8cede023cb3b54eab7d

                                                  SHA256

                                                  b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                                                  SHA512

                                                  bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

                                                  Filesize

                                                  4KB

                                                  MD5

                                                  a25fe870ba31d9f498eb0184ced6fc3e

                                                  SHA1

                                                  7fb93e0767566dcadba3d1b314ba9f3731aef7ba

                                                  SHA256

                                                  391feb1fe3743ca01e986fe87c8c85582c3701311986b29edca85325e9c2df6b

                                                  SHA512

                                                  a5a17ed3319574a0289cb01ba2f969bde1912bc73f0ccde467859bb6f3db9301e6dba4946b4369ccc6a588a3e07ce9fb3c77ba00963bb23cff383753d3472a72

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

                                                  Filesize

                                                  4KB

                                                  MD5

                                                  778f5495e49b2201bc044a496f29fd12

                                                  SHA1

                                                  872334a0acbfd39d671dde3407b789025fb3032f

                                                  SHA256

                                                  31fb65f426a88cedb9dcf64937842646f9747209e9325c2b694425e9cd7fffbb

                                                  SHA512

                                                  bcc965422a857f0317a7e5e028f324ff4c3264d7d7bc73a5147450e777ab6fb5cec8cf042003e2c27e5ab6dd062789ad3743193f10461560e54a9827f0d4b5bf

                                                • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000007.dbtmp

                                                  Filesize

                                                  16B

                                                  MD5

                                                  18e723571b00fb1694a3bad6c78e4054

                                                  SHA1

                                                  afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                                                  SHA256

                                                  8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                                                  SHA512

                                                  43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

                                                • memory/1752-0-0x000000013F290000-0x000000013F5F4000-memory.dmp

                                                  Filesize

                                                  3.4MB