Analysis

  • max time kernel
    60s
  • max time network
    60s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/05/2024, 19:14

General

  • Target
    MEMZ.bat
  • Size 13KB
  • Sample240508-xxrt6sdd32
  • SHA256 dae968f47476ef79b122e771ccd0a2bacde2ac3535f68047239682fefa3dfe50
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 7 IoCs
  • 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.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • 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 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 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:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\MEMZ.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Windows\system32\cscript.exe
      cscript x.js
      2⤵
        PID:1732
      • C:\Users\Admin\AppData\Roaming\MEMZ.exe
        "C:\Users\Admin\AppData\Roaming\MEMZ.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4820
        • C:\Users\Admin\AppData\Roaming\MEMZ.exe
          "C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:4928
        • C:\Users\Admin\AppData\Roaming\MEMZ.exe
          "C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:3296
        • C:\Users\Admin\AppData\Roaming\MEMZ.exe
          "C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:808
        • C:\Users\Admin\AppData\Roaming\MEMZ.exe
          "C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:4052
        • C:\Users\Admin\AppData\Roaming\MEMZ.exe
          "C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1292
        • C:\Users\Admin\AppData\Roaming\MEMZ.exe
          "C:\Users\Admin\AppData\Roaming\MEMZ.exe" /main
          3⤵
          • Executes dropped EXE
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4504
          • C:\Windows\SysWOW64\notepad.exe
            "C:\Windows\System32\notepad.exe" \note.txt
            4⤵
              PID:652
            • 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=facebook+hacking+tool+free+download+no+virus+working+2016
              4⤵
              • Enumerates system info in registry
              • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of WriteProcessMemory
              PID:2316
              • 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,0x120,0x124,0xf8,0x128,0x7ff8b5583cb8,0x7ff8b5583cc8,0x7ff8b5583cd8
                5⤵
                  PID:2180
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1864 /prefetch:2
                  5⤵
                    PID:1124
                  • 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=1900,5374637008180089071,12518182926352548689,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2408 /prefetch:3
                    5⤵
                      PID:1340
                    • 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=1900,5374637008180089071,12518182926352548689,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2732 /prefetch:8
                      5⤵
                        PID:2952
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --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=3228 /prefetch:1
                        5⤵
                          PID:4728
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --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=3260 /prefetch:1
                          5⤵
                            PID:3108
                          • 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=1900,5374637008180089071,12518182926352548689,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5168 /prefetch:8
                            5⤵
                              PID:1648
                            • 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=1900,5374637008180089071,12518182926352548689,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5420 /prefetch:8
                              5⤵
                              • Suspicious use of SetWindowsHookEx
                              PID:2384
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --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=5144 /prefetch:1
                              5⤵
                                PID:4292
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --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=5424 /prefetch:1
                                5⤵
                                  PID:3364
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --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=3272 /prefetch:1
                                  5⤵
                                    PID:3344
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1900,5374637008180089071,12518182926352548689,131072 --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=4516 /prefetch:1
                                    5⤵
                                      PID:3504
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4524
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:1736

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 152B
                                      • SHA256 9a24c67c3ec89f5cf8810eba1fdefc7775044c71ed78a8eb51c8d2225ad1bc4c
                                      • MD5 SHA1 SHA512

                                      settings.dat

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                      • Size 152B
                                      • SHA256 f49e20af78caf0d737f6dbcfc5cc32701a35eb092b3f0ab24cf339604cb049b5
                                      • MD5 SHA1 SHA512

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                      • Size 5KB
                                      • SHA256 af250115f83fd22a179c7e6a846a47f87b1407589d967591c9a92a3d3e10b520
                                      • MD5 SHA1 SHA512 SSDEEP

                                      Preferences

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                      • Size 6KB
                                      • SHA256 9556706ea396880094082b65b11869234995552a8b7200c3bafd9abd7264f24f
                                      • MD5 SHA1 SHA512 SSDEEP

                                      CURRENT

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                      • Size 16B
                                      • SHA256 1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167
                                      • MD5 SHA1 SHA512

                                      CURRENT

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                      • Size 16B
                                      • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                                      • MD5 SHA1 SHA512

                                      Local State

                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                      • Size 8KB
                                      • SHA256 3246e8160fcd4bc5baf9f04ec35bd7358af168593b5048bbbd05b516eab2c23c
                                      • MD5 SHA1 SHA512 SSDEEP

                                      x

                                      • Path C:\Users\Admin\AppData\Local\Temp\x
                                      • Size 11KB
                                      • SHA256 3c8cea1a86f07b018e637a1ea2649d907573f78c7e4025ef7e514362d09ff6c0
                                      • MD5 SHA1 SHA512 SSDEEP

                                      x

                                      • Path C:\Users\Admin\AppData\Local\Temp\x
                                      • Size 4KB
                                      • SHA256 45f18ccd8df88c127304a7855a608661b52b0ca813e87e06d87da15259c45037
                                      • MD5 SHA1 SHA512 SSDEEP

                                      x.js

                                      • Path C:\Users\Admin\AppData\Local\Temp\x.js
                                      • Size 448B
                                      • SHA256 aa01b8864b43e92077a106ed3d4656a511f3ba1910fba40c78a32ee6a621d596
                                      • MD5 SHA1 SHA512

                                      z.zip

                                      • Path C:\Users\Admin\AppData\Local\Temp\z.zip
                                      • Size 8KB
                                      • SHA256 44c1857b1c4894b3dfbaccbe04905652e634283dcf6b06c25a74b17021e2a268
                                      • MD5 SHA1 SHA512 SSDEEP

                                      MEMZ.exe

                                      • Path C:\Users\Admin\AppData\Roaming\MEMZ.exe
                                      • Size 14KB
                                      • SHA256 a3d5715a81f2fbeb5f76c88c9c21eeee87142909716472f911ff6950c790c24d
                                      • MD5 SHA1 SHA512 SSDEEP

                                      note.txt

                                      • Path C:\note.txt
                                      • Size 218B
                                      • SHA256 8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270
                                      • MD5 SHA1 SHA512