Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    05-07-2022 11:07

General

  • Target

    01a3835bbcf655cd4e5331da7594f50d582a79e437cbda52c7365f76fa5987eb.exe

  • Size

    155KB

  • MD5

    7fe0c480e6e5502dd307d4bc5a22aff3

  • SHA1

    af19f88f91b80df3eab8359bab2323ef217685f3

  • SHA256

    01a3835bbcf655cd4e5331da7594f50d582a79e437cbda52c7365f76fa5987eb

  • SHA512

    a82519ffec4932fd1a79f1f51e10e3a758206ac33d4135c6731c65f0ca2b3b75818b3c6abac031f8bda94d59baf562294a3619b8d1c4a0e97806d99daff084c3

Score
6/10

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\01a3835bbcf655cd4e5331da7594f50d582a79e437cbda52c7365f76fa5987eb.exe
    "C:\Users\Admin\AppData\Local\Temp\01a3835bbcf655cd4e5331da7594f50d582a79e437cbda52c7365f76fa5987eb.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\5AC7.tmp\5AC8.tmp\5AC9.bat C:\Users\Admin\AppData\Local\Temp\01a3835bbcf655cd4e5331da7594f50d582a79e437cbda52c7365f76fa5987eb.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2200
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "reg query HKEY_CLASSES_ROOT\http\shell\open\command"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4200
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://www.jining.gov.cn/col/col78128/index.html
        3⤵
        • Adds Run key to start application
        • Enumerates system info in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1740
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0x40,0x104,0x7ffdd0a846f8,0x7ffdd0a84708,0x7ffdd0a84718
          4⤵
            PID:4372
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2196 /prefetch:2
            4⤵
              PID:5104
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:908
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2788 /prefetch:8
              4⤵
                PID:2752
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3420 /prefetch:1
                4⤵
                  PID:228
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3428 /prefetch:1
                  4⤵
                    PID:644
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4900 /prefetch:8
                    4⤵
                      PID:4420
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5048 /prefetch:8
                      4⤵
                        PID:3848
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5936 /prefetch:1
                        4⤵
                          PID:4908
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5988 /prefetch:1
                          4⤵
                            PID:3756
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3564 /prefetch:8
                            4⤵
                              PID:2844
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                              4⤵
                              • Drops file in Program Files directory
                              PID:960
                              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff6b0275460,0x7ff6b0275470,0x7ff6b0275480
                                5⤵
                                  PID:4420
                              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3564 /prefetch:8
                                4⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:1120
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1464,16398078283709809667,7106560386429040377,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=5096 /prefetch:2
                                4⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4640
                        • C:\Windows\system32\reg.exe
                          reg query HKEY_CLASSES_ROOT\http\shell\open\command
                          1⤵
                            PID:3276
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:2844

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\AppData\Local\Temp\5AC7.tmp\5AC8.tmp\5AC9.bat

                              Filesize

                              215B

                              MD5

                              e29ebcc9b829d97fb5c742f8275d497e

                              SHA1

                              8bd678be71499fdfb5a20e2917761e36f74d3206

                              SHA256

                              40313e3f0f92ff70966575be2f772d85a927d18ee72ea102823241a128581246

                              SHA512

                              b5617ded91d6e495466345bd19d754a18801d7f105e5c13d0b456063b4a985f8db3f45751c08012fc91bff4787c1cb401b041c0a105bbd7ca1f63f24e2cff8c5