Analysis

  • max time kernel
    146s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 19:42

General

  • Target

    8ffcef8076920d374af454c1f3b406f9.exe

  • Size

    153KB

  • MD5

    8ffcef8076920d374af454c1f3b406f9

  • SHA1

    958bceda667365dc5700d75705afb52b34172872

  • SHA256

    c18f66b20db148aff2ff1bc3e2b6634cc8f6f6ed6842fa17839ef435a4ec3d84

  • SHA512

    67d3121dc1e148af04fafceb101db34f34648ac2907d67888bc57c3334c2ef95fa89a42015b9368b334e9f1e4ad81ffac72b32820a502924f4420a4682e3cc39

  • SSDEEP

    3072:QvxetzT1kBMjoQWJQEnUJPIH1TsNyI6SLtA8vIaiM:yI1kCodm6KPuYNyPSLtlqM

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 7 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 60 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ffcef8076920d374af454c1f3b406f9.exe
    "C:\Users\Admin\AppData\Local\Temp\8ffcef8076920d374af454c1f3b406f9.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\eyfwin.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:3208
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://configupdatestart.com/bind2.php?id=3913842
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5116
      • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffcf99546f8,0x7ffcf9954708,0x7ffcf9954718
        3⤵
          PID:4912
        • 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=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2072 /prefetch:3
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:804
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2104 /prefetch:2
          3⤵
            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=storage.mojom.StorageService --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2948 /prefetch:8
            3⤵
              PID:2220
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3276 /prefetch:1
              3⤵
                PID:3156
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3288 /prefetch:1
                3⤵
                  PID:700
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4172 /prefetch:1
                  3⤵
                    PID:3484
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4192 /prefetch:1
                    3⤵
                      PID:1448
                    • 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=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5372 /prefetch:8
                      3⤵
                        PID:624
                      • 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=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5372 /prefetch:8
                        3⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3016
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4172 /prefetch:1
                        3⤵
                          PID:4860
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4204 /prefetch:1
                          3⤵
                            PID:4804
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4116 /prefetch:1
                            3⤵
                              PID:3548
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5576 /prefetch:1
                              3⤵
                                PID:1796
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3104 /prefetch:1
                                3⤵
                                  PID:4148
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5504 /prefetch:1
                                  3⤵
                                    PID:4704
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2060,1722660150891342615,9099823534265754620,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --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=2276 /prefetch:2
                                    3⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:4328
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:4696
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:380

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\60d0e30b-3aae-4d4c-a160-9dec8624c188.tmp

                                          Filesize

                                          10KB

                                          MD5

                                          7a742df440dfce965bc943b3d52043b3

                                          SHA1

                                          b36169f5a8b66c4faee010583872c67b65df04b4

                                          SHA256

                                          eea4a0179cf1c166c0509f6caede3bd57b4fe9ff07f62e25b9be1b083366c465

                                          SHA512

                                          6868cd6eb7b50cbe0fae51def840761d1003d2193e77d512449113c7fa728cf08cb201a962ec9b2503efd76df5a56252e7cea00a0d2db6b7c6d69ec0c3048be2

                                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                          Filesize

                                          152B

                                          MD5

                                          1386433ecc349475d39fb1e4f9e149a0

                                          SHA1

                                          f04f71ac77cb30f1d04fd16d42852322a8b2680f

                                          SHA256

                                          a7c79320a37d3516823f533e0ca73ed54fc4cdade9999b9827d06ea9f8916bbc

                                          SHA512

                                          fcd5449c58ead25955d01739929c42ffc89b9007bc2c8779c05271f2d053be66e05414c410738c35572ef31811aff908e7fe3dd7a9cef33c27acb308a420280e

                                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                          Filesize

                                          5KB

                                          MD5

                                          0591379cac5973852be77ad276026495

                                          SHA1

                                          81f458db4ef0484e520e660f37306234a267614e

                                          SHA256

                                          c0079cbd1beac2a5588e5f3d4b59ba5237661d9944315bdba32581a6260da4f9

                                          SHA512

                                          1d3b61279e0649d5310ad08e4074f312c3baf8b580cedcf85f4d56f51467b4383b8e981e6aa3de021e7178aa41d0c8e935d8a67c06fbb47824171ea83d1701be

                                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                          Filesize

                                          5KB

                                          MD5

                                          b09b1e217ce2b60ba6be793c23caafa3

                                          SHA1

                                          d6debfe5d552293ab8781e8d45dee4a2cfb5635e

                                          SHA256

                                          e9713de62aa928411d91507c5bf05e9cc6bd1ab1f494b48703f039876e986193

                                          SHA512

                                          ec21be7c597502648e8d74207a9371d3fde762bc853c62263f02ce70fa7be073a2caa364c3ae5390d2e8704e741d0769a6116e14f4be9b629a92f8a6d718e1c8

                                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences

                                          Filesize

                                          24KB

                                          MD5

                                          e664066e3aa135f185ed1c194b9fa1f8

                                          SHA1

                                          358ff3c6ad0580b8ae1e5ef2a89a4e597c2efdc5

                                          SHA256

                                          86e595be48dbc768a52d7ea62116036c024093e1302aced8c29dd6a2d9935617

                                          SHA512

                                          58710818b5f664006a5aa418da6c8cd3f709c2265bc161f81b9dfe6cdb8304fabaa4ce9deba419fe4281623feeeaa0321f481ae5855d347c6d8cf95968ee905e

                                        • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                          Filesize

                                          16B

                                          MD5

                                          6752a1d65b201c13b62ea44016eb221f

                                          SHA1

                                          58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                          SHA256

                                          0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                          SHA512

                                          9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                                        • C:\Windows\SysWOW64\eyfwin.dll

                                          Filesize

                                          216KB

                                          MD5

                                          732cadeaf934ac1edc47f1a577eca711

                                          SHA1

                                          444f18e24d9c48e99b142c85ba6e65cba693988f

                                          SHA256

                                          e232ef1159527f8ef57f480dcf0399d9b718354e90449545b1a3b7ea30015871

                                          SHA512

                                          9b8a8e36b8e7292915a99a47796cd89dab6af4a506bf956093cbcefc24a4b7d3864f26c50d4b4326c38d03a8aca8c4be822e1702b436e9a97b1e084c6e9c0e5f

                                        • memory/2096-0-0x0000000000400000-0x0000000000470000-memory.dmp

                                          Filesize

                                          448KB

                                        • memory/2096-29-0x0000000000400000-0x0000000000470000-memory.dmp

                                          Filesize

                                          448KB