Analysis

  • max time kernel
    112s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 16:47

General

  • Target

    a.exe

  • Size

    165KB

  • MD5

    cce24660d134a955359e362767b66dba

  • SHA1

    7e458b44686d344ef0da66dd2b650458f0c0b610

  • SHA256

    91423704feab36526f26a0e356855dbbd7b40004344dac6ffb8469d8c638e281

  • SHA512

    87e187f6546d6812a20c707e0f97baa7dcec09520a8cdf77f616f3121d47cb7322090d0ff905ca006e350409c316676876d0214101f38c6ef6f1360efb2e8d8b

  • SSDEEP

    3072:dbaQL/EUvHbcOuAW3Lc1xgbLEpop46lvbnRPoG3UdBbp:dbarXcjfup46BbC5Bbp

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a.exe
    "C:\Users\Admin\AppData\Local\Temp\a.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYAN /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2276
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\a.exe" /sc minute /mo 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3436
    • C:\Windows\x64dbg.exe
      "C:\Windows\x64dbg.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4064
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Delete /tn NYAN /F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2804
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1604
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.google.com/
        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:4472
        • 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=0x104,0x108,0x10c,0xe0,0x110,0x7fffc18346f8,0x7fffc1834708,0x7fffc1834718
          4⤵
            PID:1964
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2120 /prefetch:2
            4⤵
              PID:4232
            • 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=2100,16397606893191274359,7481666755942969833,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2204 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1396
            • 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=2100,16397606893191274359,7481666755942969833,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2728 /prefetch:8
              4⤵
                PID:2424
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --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=3236 /prefetch:1
                4⤵
                  PID:804
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --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
                  4⤵
                    PID:4328
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --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=5044 /prefetch:1
                    4⤵
                      PID:4644
                    • 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=2100,16397606893191274359,7481666755942969833,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5320 /prefetch:8
                      4⤵
                        PID:1696
                      • 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=2100,16397606893191274359,7481666755942969833,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5320 /prefetch:8
                        4⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3552
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5344 /prefetch:1
                        4⤵
                          PID:4828
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --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=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5404 /prefetch:1
                          4⤵
                            PID:2984
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --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=5628 /prefetch:1
                            4⤵
                              PID:2308
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2100,16397606893191274359,7481666755942969833,131072 --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=5036 /prefetch:1
                              4⤵
                                PID:4988
                        • C:\Windows\x64dbg.exe
                          C:\Windows\x64dbg.exe
                          1⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          • Suspicious use of WriteProcessMemory
                          PID:3864
                          • C:\Windows\SysWOW64\schtasks.exe
                            schtasks /Delete /tn NYAN /F
                            2⤵
                            • System Location Discovery: System Language Discovery
                            PID:4492
                          • C:\Windows\SysWOW64\schtasks.exe
                            schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
                            2⤵
                            • System Location Discovery: System Language Discovery
                            • Scheduled Task/Job: Scheduled Task
                            PID:3440
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:2220
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:3672
                            • C:\Windows\x64dbg.exe
                              C:\Windows\x64dbg.exe
                              1⤵
                              • Executes dropped EXE
                              • System Location Discovery: System Language Discovery
                              PID:1664
                              • C:\Windows\SysWOW64\schtasks.exe
                                schtasks /Delete /tn NYAN /F
                                2⤵
                                • System Location Discovery: System Language Discovery
                                PID:3144
                              • C:\Windows\SysWOW64\schtasks.exe
                                schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
                                2⤵
                                • System Location Discovery: System Language Discovery
                                • Scheduled Task/Job: Scheduled Task
                                PID:3544

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\x64dbg.exe.log

                              Filesize

                              408B

                              MD5

                              40b0c3caa1b14a4c83e8475c46bf2016

                              SHA1

                              af9575cda4d842f028d18b17063796a894ecd9d0

                              SHA256

                              70e88a428d92b6ab5905dac9f324824c4c6f120bc3f385c82b2d12f707a4a867

                              SHA512

                              916437df737de4b6063b7116b4d148229d4a975eb4046122d47434b81fba06e88e09e5f273ec496c81ef3feecb843ccad20a7a04074224416c1fa9951acbdac7

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

                              Filesize

                              152B

                              MD5

                              7de1bbdc1f9cf1a58ae1de4951ce8cb9

                              SHA1

                              010da169e15457c25bd80ef02d76a940c1210301

                              SHA256

                              6e390bbc0d03a652516705775e8e9a7b7936312a8a5bea407f9d7d9fa99d957e

                              SHA512

                              e4a33f2128883e71ab41e803e8b55d0ac17cbc51be3bde42bed157df24f10f34ad264f74ef3254dbe30d253aca03158fde21518c2b78aaa05dae8308b1c5f30c

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

                              Filesize

                              152B

                              MD5

                              85ba073d7015b6ce7da19235a275f6da

                              SHA1

                              a23c8c2125e45a0788bac14423ae1f3eab92cf00

                              SHA256

                              5ad04b8c19bf43b550ad725202f79086168ecccabe791100fba203d9aa27e617

                              SHA512

                              eb4fd72d7030ea1a25af2b59769b671a5760735fb95d18145f036a8d9e6f42c903b34a7e606046c740c644fab0bb9f5b7335c1869b098f121579e71f10f5a9c3

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Cache\f_000003

                              Filesize

                              215KB

                              MD5

                              d79b35ccf8e6af6714eb612714349097

                              SHA1

                              eb3ccc9ed29830df42f3fd129951cb8b791aaf98

                              SHA256

                              c8459799169b81fdab64d028a9ebb058ea2d0ad5feb33a11f6a45a54a5ccc365

                              SHA512

                              f4be1c1e192a700139d7cff5059af81c0234ed5f032796036a1a4879b032ce4eedd16a121bbf776f17bc84a0012846f467ad48b46db4008841c25b779c7d8f5a

                            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

                              Filesize

                              144B

                              MD5

                              694ee4b475d2ed8f17f4c8500fe8901d

                              SHA1

                              dea590974da8891433206f5b0ebb1e4e210d3e92

                              SHA256

                              1801773173094b5431289e381165868120ca0b7dc42faeae798ed46b60c9b31c

                              SHA512

                              344f4c7d023a0ce3c4e618dbb8489caa59339d859701c3d1a02f8bfc674af042d2604412cb32d8f75f637c251a56f7e9fc0b776c3324473dd3e60568169806f3

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

                              Filesize

                              6KB

                              MD5

                              9197bb024b44c204165af494fbd65816

                              SHA1

                              0ff0467e1ecbd69aa9a23e89b7d1f6293acabada

                              SHA256

                              c47cbc7499dff69107aa9f895ef231d1ea522c887bfb8a0583991dd08d9dcd7d

                              SHA512

                              6ca9c46c19deb21096e4b5b91c0da63ca4b74b94c3846535c0d3acb707d2846e1b6ce8dc191b5cb98f89df1c23ac6d99613a29137d2a93c6ae77ecf8011c65fc

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

                              Filesize

                              5KB

                              MD5

                              c37f136ffc282103351358ee16f41acb

                              SHA1

                              a835ed53f0453643f8e22505a6177ff46b50ba27

                              SHA256

                              77d036452b1081f9cb8890d03bf980fe924c0be98f0d3fe18f192bd8da7338d2

                              SHA512

                              a21d5408d1e92e22a2f4e6d33d0164d40830f3d3738ce95f1854db5b3466f4c1bc67ab4f08f289552e2da2e96cfb31820513ddd8cb2265fff55351969931cb6b

                            • 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

                              437952c0a1bb6b768e500e100d28a859

                              SHA1

                              7c315787d5500781a759c9b01ef34bc373b0112d

                              SHA256

                              6bcc82ba3e0058c5053ad66a3784439bd8f36e055a6f275a95797759ed49f397

                              SHA512

                              a103287b764bfb2a776dcf137680f3a3cbf8253cba2cf9e902cd54439cabff0a549c4474a523882db69bec605c13911e00952984167f0abefcfb2f3d33a490a5

                            • C:\Windows\x64dbg.exe

                              Filesize

                              165KB

                              MD5

                              cce24660d134a955359e362767b66dba

                              SHA1

                              7e458b44686d344ef0da66dd2b650458f0c0b610

                              SHA256

                              91423704feab36526f26a0e356855dbbd7b40004344dac6ffb8469d8c638e281

                              SHA512

                              87e187f6546d6812a20c707e0f97baa7dcec09520a8cdf77f616f3121d47cb7322090d0ff905ca006e350409c316676876d0214101f38c6ef6f1360efb2e8d8b

                            • memory/2328-12-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/2328-0-0x0000000075452000-0x0000000075453000-memory.dmp

                              Filesize

                              4KB

                            • memory/2328-2-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/2328-1-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4064-17-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4064-15-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4064-14-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB

                            • memory/4064-13-0x0000000075450000-0x0000000075A01000-memory.dmp

                              Filesize

                              5.7MB