Analysis

  • max time kernel
    145s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 10:15

General

  • Target

    ec4a55497498ef265c9ec209666bdc98f6fd81edb311c7f091831456f7d54d3b.exe

  • Size

    2.6MB

  • MD5

    43eabc0816bf440573942cd0de5854cd

  • SHA1

    1981b5cc46e40d05d170941121b306694c50b790

  • SHA256

    ec4a55497498ef265c9ec209666bdc98f6fd81edb311c7f091831456f7d54d3b

  • SHA512

    89686643a7f3d20987e7c30985f0120c2160e7f1514f4b0376b3071a60c759ee5b0caefcfaf6e07643906eaebe3d6f8d76200d7f0f0de718cef720d5ebf286f4

  • SSDEEP

    24576:9A8vyrepIND/0bfSPdaYsi5YYR+h+8fEvdDrGnrdEROGHOhXBo7FC/hRJHOh:9A81IJPLmEvdDqnroHO9HO

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 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\ec4a55497498ef265c9ec209666bdc98f6fd81edb311c7f091831456f7d54d3b.exe
    "C:\Users\Admin\AppData\Local\Temp\ec4a55497498ef265c9ec209666bdc98f6fd81edb311c7f091831456f7d54d3b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:316
    • C:\Users\Admin\AppData\Local\Temp\ec4a55497498ef265c9ec209666bdc98f6fd81edb311c7f091831456f7d54d3b.exe
      "C:\Users\Admin\AppData\Local\Temp\ec4a55497498ef265c9ec209666bdc98f6fd81edb311c7f091831456f7d54d3b.exe" Master
      2⤵
      • Drops file in Drivers directory
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3980
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.178stu.com/my.htm
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:3156
        • 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,0x100,0x104,0xd8,0x108,0x7ff8e89b46f8,0x7ff8e89b4708,0x7ff8e89b4718
          4⤵
            PID:1228
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2196 /prefetch:2
            4⤵
              PID:3776
            • 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=2184,822060897093726103,2203740880802500352,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:5032
            • 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=2184,822060897093726103,2203740880802500352,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2752 /prefetch:8
              4⤵
                PID:3084
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=3268 /prefetch:1
                4⤵
                  PID:4936
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=3280 /prefetch:1
                  4⤵
                    PID:3364
                  • 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=2184,822060897093726103,2203740880802500352,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4696 /prefetch:8
                    4⤵
                      PID:3896
                    • 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=2184,822060897093726103,2203740880802500352,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4696 /prefetch:8
                      4⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:5004
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=4936 /prefetch:1
                      4⤵
                        PID:1108
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4968 /prefetch:1
                        4⤵
                          PID:464
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=3352 /prefetch:1
                          4⤵
                            PID:3996
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3992 /prefetch:1
                            4⤵
                              PID:3184
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=5332 /prefetch:1
                              4⤵
                                PID:3896
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=5048 /prefetch:1
                                4⤵
                                  PID:1728
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=3308 /prefetch:1
                                  4⤵
                                    PID:4996
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2184,822060897093726103,2203740880802500352,131072 --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=3988 /prefetch:2
                                    4⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:2124
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:2616
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:3752

                                Network

                                MITRE ATT&CK Matrix ATT&CK v13

                                Credential Access

                                Unsecured Credentials

                                1
                                T1552

                                Credentials In Files

                                1
                                T1552.001

                                Discovery

                                Query Registry

                                4
                                T1012

                                System Information Discovery

                                4
                                T1082

                                Peripheral Device Discovery

                                1
                                T1120

                                Collection

                                Data from Local System

                                1
                                T1005

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

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

                                  152B

                                  MD5

                                  919c29d42fb6034fee2f5de14d573c63

                                  SHA1

                                  24a2e1042347b3853344157239bde3ed699047a8

                                  SHA256

                                  17cd6de97a0c020cb4935739cfef4ec4e074e8d127ac4c531b6dc496580c8141

                                  SHA512

                                  bb7eadd087bbcec8b1b8a49b102b454333f2f9708d36b6ffc3c82fdc52e46873398d967238c3bfe9ac6caef45b017a5fe3938ebf5f3053e4ef9be7b2752b563d

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

                                  152B

                                  MD5

                                  8b2290ca03b4ca5fe52d82550c7e7d69

                                  SHA1

                                  20583a7851a906444204ce8ba4fa51153e6cd494

                                  SHA256

                                  f9ff4871fc5317299de907489d466e630be63d698c8f7cb77cc81faddbecc6d2

                                  SHA512

                                  704ec8122cc1c263dff67ddbb5c20ee0db8a438674d716bc3be5b266ee5629a219b0049d721f9eb2dd8f2d8fda0163659eaa4d3e1f0a6e9072a8ffb92bb2b25d

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

                                  6KB

                                  MD5

                                  50334cb1b2f9a4d29eec2c654b647e9c

                                  SHA1

                                  98b0104b2290d74fcad9f564a0c81e6c41ead010

                                  SHA256

                                  479ce9d72e0169aa1e0fdf86f42b6d87d7b2e78a85255bdce519c2166ae70951

                                  SHA512

                                  b15258fe6dfa6a38ce76d07952c3bdcd4b64af3be28d01ca79aee7b3cdc00384c34757ded98c92e8ee0067dbb4c93ccd822c494ee988eb32016e61d64585b8f3

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

                                  6KB

                                  MD5

                                  f1b0467e276ab613436ae04c6306bfd7

                                  SHA1

                                  4bb8b8679822d22d6344534dc38a6014d9c9394e

                                  SHA256

                                  ac2562f9ac5d1106415aa3884ea4559940f72ca25423ba4ca694b7fc3efb2100

                                  SHA512

                                  908bda132fa3916d7886a22983189203eba59947175a0b32f25a84e2ceb0bfaab53b9ff0a7f7829ee3570704d2d2f87097d5b29aa5945816fc3a8b823c4923cb

                                • 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:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                  Filesize

                                  8KB

                                  MD5

                                  ffc90ddca901027953dcd6f65a27a382

                                  SHA1

                                  9902a21c6f66c852bdace007dc84ae628c15201a

                                  SHA256

                                  b6ec065ed7343af75f7d26923dde7ef23b81b18b239e46cadedc5e2f2a65417f

                                  SHA512

                                  eddf4c84547b8c7f32917b9250a49147af270de5adbd0f0a6918c29d51f5454c736b26c70ea6cec6460cb042329d333055c9da95bc724dd3dd2ce062d8524d93

                                • \??\pipe\LOCAL\crashpad_3156_FJUNKRCQXTQEUNWI
                                  MD5

                                  d41d8cd98f00b204e9800998ecf8427e

                                  SHA1

                                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                                  SHA256

                                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                  SHA512

                                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                • memory/316-1-0x0000000000400000-0x000000000069F000-memory.dmp
                                  Filesize

                                  2.6MB

                                • memory/316-0-0x00000000022F0000-0x00000000022F1000-memory.dmp
                                  Filesize

                                  4KB

                                • memory/3980-6-0x0000000000400000-0x000000000069F000-memory.dmp
                                  Filesize

                                  2.6MB

                                • memory/3980-9-0x0000000000400000-0x000000000069F000-memory.dmp
                                  Filesize

                                  2.6MB

                                • memory/3980-5-0x0000000000400000-0x000000000069F000-memory.dmp
                                  Filesize

                                  2.6MB

                                • memory/3980-2-0x0000000002410000-0x0000000002411000-memory.dmp
                                  Filesize

                                  4KB