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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-04-2024 21:16

General

  • Target

    Memz.exe

  • Size

    14KB

  • MD5

    19dbec50735b5f2a72d4199c4e184960

  • SHA1

    6fed7732f7cb6f59743795b2ab154a3676f4c822

  • SHA256

    a3d5715a81f2fbeb5f76c88c9c21eeee87142909716472f911ff6950c790c24d

  • SHA512

    aa8a6bbb1ec516d5d5acf8be6863a4c6c5d754cee12b3d374c3a6acb393376806edc422f0ffb661c210e5b9485da88521e4a0956a4b7b08a5467cfaacd90591d

  • SSDEEP

    192:sIvxdXSQeWSg9JJS/lcIEiwqZKBkDFR43xWTM3LHn8f26gyr6yfFCj3r:sMVSaSEglcIqq3agmLc+6gyWqFCj

Score
6/10

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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 1 IoCs
  • Runs regedit.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Memz.exe
    "C:\Users\Admin\AppData\Local\Temp\Memz.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\Memz.exe
      "C:\Users\Admin\AppData\Local\Temp\Memz.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:5008
    • C:\Users\Admin\AppData\Local\Temp\Memz.exe
      "C:\Users\Admin\AppData\Local\Temp\Memz.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4160
    • C:\Users\Admin\AppData\Local\Temp\Memz.exe
      "C:\Users\Admin\AppData\Local\Temp\Memz.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2984
    • C:\Users\Admin\AppData\Local\Temp\Memz.exe
      "C:\Users\Admin\AppData\Local\Temp\Memz.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:880
    • C:\Users\Admin\AppData\Local\Temp\Memz.exe
      "C:\Users\Admin\AppData\Local\Temp\Memz.exe" /watchdog
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4128
    • C:\Users\Admin\AppData\Local\Temp\Memz.exe
      "C:\Users\Admin\AppData\Local\Temp\Memz.exe" /main
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\SysWOW64\notepad.exe
        "C:\Windows\System32\notepad.exe" \note.txt
        3⤵
          PID:4652
        • C:\Windows\SysWOW64\explorer.exe
          "C:\Windows\System32\explorer.exe"
          3⤵
          • Modifies registry class
          PID:1480
        • C:\Windows\SysWOW64\regedit.exe
          "C:\Windows\System32\regedit.exe"
          3⤵
          • Runs regedit.exe
          PID:2652
        • C:\Windows\SysWOW64\regedit.exe
          "C:\Windows\System32\regedit.exe"
          3⤵
          • Runs regedit.exe
          PID:484
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://play.clubpenguin.com/
          3⤵
          • Enumerates system info in registry
          • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:1888
          • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ffdb7a53cb8,0x7ffdb7a53cc8,0x7ffdb7a53cd8
            4⤵
              PID:1420
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1840 /prefetch:2
              4⤵
                PID:2788
              • 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=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2124 /prefetch:3
                4⤵
                  PID:788
                • 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=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2552 /prefetch:8
                  4⤵
                    PID:2316
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=3160 /prefetch:1
                    4⤵
                      PID:1600
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=3188 /prefetch:1
                      4⤵
                        PID:1444
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=3768 /prefetch:1
                        4⤵
                          PID:3824
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=3500 /prefetch:1
                          4⤵
                            PID:276
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=4912 /prefetch:1
                            4⤵
                              PID:3476
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3488 /prefetch:8
                              4⤵
                                PID:444
                              • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5336 /prefetch:8
                                4⤵
                                • Suspicious use of SetWindowsHookEx
                                PID:1832
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4996 /prefetch:1
                                4⤵
                                  PID:3740
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5008 /prefetch:1
                                  4⤵
                                    PID:3300
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5080 /prefetch:1
                                    4⤵
                                      PID:4800
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --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=5704 /prefetch:1
                                      4⤵
                                        PID:4868
                                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5892 /prefetch:1
                                        4⤵
                                          PID:3980
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1828,12553743766991082727,12560042473412480375,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5964 /prefetch:1
                                          4⤵
                                            PID:4532
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://google.co.ck/search?q=g3t+r3kt
                                          3⤵
                                            PID:3088
                                            • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ffdb7a53cb8,0x7ffdb7a53cc8,0x7ffdb7a53cd8
                                              4⤵
                                                PID:1772
                                        • C:\Windows\System32\CompPkgSrv.exe
                                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                                          1⤵
                                            PID:4676
                                          • C:\Windows\System32\CompPkgSrv.exe
                                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                                            1⤵
                                              PID:5100
                                            • C:\Windows\system32\AUDIODG.EXE
                                              C:\Windows\system32\AUDIODG.EXE 0x00000000000004C8 0x00000000000004D4
                                              1⤵
                                              • Suspicious use of AdjustPrivilegeToken
                                              PID:1568

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

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

                                              Filesize

                                              152B

                                              MD5

                                              54caf18c2cda579e0dad6a9fc5179562

                                              SHA1

                                              357d25de14903392900d034e37f5918b522e17c9

                                              SHA256

                                              28d77529de92eb605d8afee0e133a7d08e13d4386e5e38d63e2da34623eaad6b

                                              SHA512

                                              88da5a33df9d82408afb8344ec7dbaf7686435fdb55eccfb85d5560f39861e84cef5d71949d5efe7a191778e6be755a8448f3fc3d7043007037f9f5227e10210

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

                                              Filesize

                                              152B

                                              MD5

                                              696ffba7b83ecf008523e96918f200d9

                                              SHA1

                                              970d90e22c8b3674fc33cdd1913c51ef28514255

                                              SHA256

                                              dc6dacd725d7385b2e4db1f488d93f2840d2289efdaaf3737849304d1ab9ba34

                                              SHA512

                                              f8528683b70b58376f3eba3338fa6b462c9e9248c72524573005cff6397a0556bdcc2fdc2ebb020ba8218bc8174ba552002f223a245dfe3d3688826d24d63237

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

                                              Filesize

                                              200KB

                                              MD5

                                              a484f2f3418f65b8214cbcd3e4a31057

                                              SHA1

                                              5c002c51b67db40f88b6895a5d5caa67608a65ce

                                              SHA256

                                              79cbe928773386d07f0127f256f383debed5ccea5ff230465bf46ec7c87319d6

                                              SHA512

                                              0be1bb8db08f6e6041a85cfee90cd36a5b595afbca34d52a125465454fc806b4bb7ae569eaf4c882922fb1b962b6060534e597791cd0ad23483be5981d9be85c

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

                                              Filesize

                                              5KB

                                              MD5

                                              797cafbd8f217674da61aa89b1c3da33

                                              SHA1

                                              7c91336d1317a95261849d373bbb63564bda8127

                                              SHA256

                                              31780cbcc76daaa8c0fbc7f1498cdc375d098c6277c738a0eee09e9fd7dbab03

                                              SHA512

                                              135116609cc3cf885d5b6b6a6aa99b2482bad5927e3f33955c3e0a149b756c4833553e0855c3983d82d2e85656986f9d0666c5a4ac327d1096c451c7be595444

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

                                              Filesize

                                              5KB

                                              MD5

                                              909fb14e353c380f113ee4abe11f27c1

                                              SHA1

                                              90b953478833e89e2e2cea2fa7365728eefee771

                                              SHA256

                                              b94506bada5389dd1f1136c16df44c2a2902899db4254647a22dd5ff77810a25

                                              SHA512

                                              d47ed81420d7c0e8a3afcc25b15f1d427dba6cfca10d0848e1ec855537a126aff58ca122e4b01ba2a91caa631f7e43b64d5d0ad0abe1dddd16b901652eadf9ae

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

                                              Filesize

                                              16B

                                              MD5

                                              46295cac801e5d4857d09837238a6394

                                              SHA1

                                              44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                              SHA256

                                              0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                              SHA512

                                              8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

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

                                              Filesize

                                              16B

                                              MD5

                                              206702161f94c5cd39fadd03f4014d98

                                              SHA1

                                              bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                              SHA256

                                              1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                              SHA512

                                              0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

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

                                              Filesize

                                              11KB

                                              MD5

                                              79defd6992ba1df5791f373993c586a1

                                              SHA1

                                              6b6d7614c91120cf6e45038419a2c8f16364397e

                                              SHA256

                                              d360694c01484d9b7931c3c706c84e1d39784b0137a0ceffd5406854f295cb28

                                              SHA512

                                              8b3964894191c0a78f8eefbca976682d3a4743a55113bf695850b905e580d7872fa01b8615f39c0e9e522ab20668ab7788d32bcc8973aabf97bd804236f8d9cd

                                            • C:\note.txt

                                              Filesize

                                              218B

                                              MD5

                                              afa6955439b8d516721231029fb9ca1b

                                              SHA1

                                              087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

                                              SHA256

                                              8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

                                              SHA512

                                              5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf

                                            • \??\pipe\LOCAL\crashpad_1888_MUFPZPMQIHZPPXEV

                                              MD5

                                              d41d8cd98f00b204e9800998ecf8427e

                                              SHA1

                                              da39a3ee5e6b4b0d3255bfef95601890afd80709

                                              SHA256

                                              e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                              SHA512

                                              cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e