Analysis

  • max time kernel
    69s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22/02/2024, 21:31

General

  • Target
    a8953bbaa868dd7f66a3a7e73da80585.exe
  • Size 61KB
  • Sample240222-1c14wsff95
  • SHA256 cdb8b8b1134a657a1fef24640d2e11005cf81c370380cff8634b2a7da776cea4
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Detect ZGRat V1 9 IoCs
  • Process spawned unexpected child process 15 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 15 IoCs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8953bbaa868dd7f66a3a7e73da80585.exe
    "C:\Users\Admin\AppData\Local\Temp\a8953bbaa868dd7f66a3a7e73da80585.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c MpCmdRun.exe -AddExclusion -FileName C:\Users\Admin\AppData\Local\Temp\\WindowsMD5Checker.exe
      2⤵
        PID:2488
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c MpCmdRun.exe -AddExclusion -FileName C:\Users\Admin\AppData\Local\Temp\\SandelloChecker.exe
        2⤵
          PID:2776
        • C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
          "C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2616
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\MsWebSession\aISwmBA1tz2Li9c6LCYbI0c56v7tmGzpAA7ZdNSGvv0YyEqFbmxvfE9xX.vbe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:2212
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\MsWebSession\28GBsRQl2u5EqD0HGx7YGeYZyO2za9W9ftVvHiRGielbEoVm.bat" "
              4⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1528
              • C:\MsWebSession\agentreviewIntoRefdhcp.exe
                "C:\MsWebSession/agentreviewIntoRefdhcp.exe"
                5⤵
                • Executes dropped EXE
                • Drops file in Program Files directory
                • Drops file in Windows directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:2284
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\hO65TX3R2N.bat"
                  6⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2948
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    7⤵
                      PID:1628
                    • C:\Windows\system32\w32tm.exe
                      w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                      7⤵
                        PID:1180
                      • C:\Recovery\53c2ef02-d124-11ee-be41-9f00cc481deb\audiodg.exe
                        "C:\Recovery\53c2ef02-d124-11ee-be41-9f00cc481deb\audiodg.exe"
                        7⤵
                        • Executes dropped EXE
                        PID:1680
            • C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
              "C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe"
              2⤵
              • Executes dropped EXE
              • Enumerates connected drives
              • Modifies system certificate store
              • Suspicious use of FindShellTrayWindow
              PID:2452
          • C:\Windows\system32\msiexec.exe
            C:\Windows\system32\msiexec.exe /V
            1⤵
            • Enumerates connected drives
            • Suspicious use of WriteProcessMemory
            PID:664
            • C:\Windows\syswow64\MsiExec.exe
              C:\Windows\syswow64\MsiExec.exe -Embedding AD8E34337114C1276305A4865C9F4220 C
              2⤵
              • Loads dropped DLL
              PID:2748
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 7 /tr "'C:\Recovery\53c2ef02-d124-11ee-be41-9f00cc481deb\audiodg.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2720
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Recovery\53c2ef02-d124-11ee-be41-9f00cc481deb\audiodg.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2584
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 13 /tr "'C:\Recovery\53c2ef02-d124-11ee-be41-9f00cc481deb\audiodg.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2620
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\ja-JP\conhost.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:1320
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\ja-JP\conhost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2436
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\ja-JP\conhost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2828
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Mail\it-IT\conhost.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2844
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Program Files\Windows Mail\it-IT\conhost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2968
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Mail\it-IT\conhost.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2624
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 5 /tr "'C:\Windows\es-ES\cmd.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2768
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Windows\es-ES\cmd.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:2020
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 7 /tr "'C:\Windows\es-ES\cmd.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:804
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Media Player\de-DE\WMIADAP.exe'" /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:1780
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "WMIADAP" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\de-DE\WMIADAP.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:924
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "WMIADAPW" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Media Player\de-DE\WMIADAP.exe'" /rl HIGHEST /f
            1⤵
            • Process spawned unexpected child process
            • Creates scheduled task(s)
            PID:1104

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                28GBsRQl2u5EqD0HGx7YGeYZyO2za9W9ftVvHiRGielbEoVm.bat

                • Path C:\MsWebSession\28GBsRQl2u5EqD0HGx7YGeYZyO2za9W9ftVvHiRGielbEoVm.bat
                • Size 95B
                • SHA256 102e9e1f76065e7c6207880bdcdba7cad4aebb61e2644ac80f76ed1a2ca92b1b
                • MD5 SHA1 SHA512

                aISwmBA1tz2Li9c6LCYbI0c56v7tmGzpAA7ZdNSGvv0YyEqFbmxvfE9xX.vbe

                • Path C:\MsWebSession\aISwmBA1tz2Li9c6LCYbI0c56v7tmGzpAA7ZdNSGvv0YyEqFbmxvfE9xX.vbe
                • Size 250B
                • SHA256 fee3cc05c5cd12982240bd1e83cf2362871ab9b656fd807928387ddb67e831f7
                • MD5 SHA1 SHA512

                agentreviewIntoRefdhcp.exe

                • Path C:\MsWebSession\agentreviewIntoRefdhcp.exe
                • Size 1.8MB
                • SHA256 08daa72b2037bc39aa4a753c18d1552fb892322cf747042a8823de26e8a4d0c0
                • MD5 SHA1 SHA512 SSDEEP

                conhost.exe

                • Path C:\Program Files\Windows Mail\it-IT\conhost.exe
                • Size 3.6MB
                • SHA256 3ed028c17d0038c69998ad942feb78aff2f9f363bae2203250b0eba6ce0d26be
                • MD5 SHA1 SHA512 SSDEEP

                aboutbtn

                • Path C:\Users\Admin\AppData\Local\Temp\AI_EXTUI_BIN_2452\aboutbtn
                • Size 1KB
                • SHA256 9d7243c688264329a8cb9e22da00b651e0a9407741d722e03dd67cc8b3ee1335
                • MD5 SHA1 SHA512

                background

                • Path C:\Users\Admin\AppData\Local\Temp\AI_EXTUI_BIN_2452\background
                • Size 2KB
                • SHA256 b671008e5d4a15409051d7b3d2aa40f7c028e1dab5876c2882976793abb9356c
                • MD5 SHA1 SHA512

                buttonimgs

                • Path C:\Users\Admin\AppData\Local\Temp\AI_EXTUI_BIN_2452\buttonimgs
                • Size 1KB
                • SHA256 f8f4efdb34b00775638c95568761c93436812af56c8f41116f2f92a987ca9ae0
                • MD5 SHA1 SHA512

                checkernewicon.png

                • Path C:\Users\Admin\AppData\Local\Temp\AI_EXTUI_BIN_2452\checkernewicon.png
                • Size 3KB
                • SHA256 76adccd20b35ba40b9be5ac4194941625826084f32a9c7c07090708946fc39c5
                • MD5 SHA1 SHA512

                Cab9E06.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\Cab9E06.tmp
                • Size 65KB
                • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
                • MD5 SHA1 SHA512 SSDEEP

                MSIA214.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\MSIA214.tmp
                • Size 587KB
                • SHA256 42b8adafcb4e8496d9822a0c504f449e56456528a9251c153381d3f63d197e5b
                • MD5 SHA1 SHA512 SSDEEP

                MSIA61C.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\MSIA61C.tmp
                • Size 1.1MB
                • SHA256 3c21e1f3bb3ebeb5f0ff68658db8abd18b62f8b195288c4bf87936fc51f8ae9e
                • MD5 SHA1 SHA512 SSDEEP

                SandelloChecker.exe

                • Path C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
                • Size 5.0MB
                • SHA256 c630495220149dea3714baa6fc2d1b2a77dadd62a4456795ccceea23bf06b643
                • MD5 SHA1 SHA512 SSDEEP

                SandelloChecker.exe

                • Path C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
                • Size 4.8MB
                • SHA256 834a29dbdb0467470a76685e94f40522cb6165f41618f4f50aaf801f242c6eed
                • MD5 SHA1 SHA512 SSDEEP

                SandelloChecker.exe

                • Path C:\Users\Admin\AppData\Local\Temp\SandelloChecker.exe
                • Size 13.5MB
                • SHA256 dac551ee5f8158a8803dc0b1f1591b4460ea07eaf908e76badec9b772cbc21c2
                • MD5 SHA1 SHA512 SSDEEP

                Tar9E18.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\Tar9E18.tmp
                • Size 171KB
                • SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
                • MD5 SHA1 SHA512 SSDEEP

                WindowsMD5Checker.exe

                • Path C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
                • Size 3.9MB
                • SHA256 3b9330b09929cc5391a31e5780a967d26f21b010b586b2226e3d22038226f800
                • MD5 SHA1 SHA512 SSDEEP

                WindowsMD5Checker.exe

                • Path C:\Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
                • Size 512KB
                • SHA256 a9f715cd25b09f30e5e8ed6e02d9cd9389e13b1bf276c7b49c3ef61e9cea394d
                • MD5 SHA1 SHA512 SSDEEP

                hO65TX3R2N.bat

                • Path C:\Users\Admin\AppData\Local\Temp\hO65TX3R2N.bat
                • Size 236B
                • SHA256 ec98754b2e399e23b00a714492abd95d15dd363cfbdb85a753e3c221267601a5
                • MD5 SHA1 SHA512

                SandeLLoCHECKER_Installer.msi

                • Path C:\Users\Admin\AppData\Roaming\SandeLLo CHECKER\install\51B5780\SandeLLoCHECKER_Installer.msi
                • Size 4.7MB
                • SHA256 2fc0bc7675b71742b759f44f00e23662f28ad3d04cc5e2956428e57cb61d55b7
                • MD5 SHA1 SHA512 SSDEEP

                agentreviewIntoRefdhcp.exe

                • Path \MsWebSession\agentreviewIntoRefdhcp.exe
                • Size 1024KB
                • SHA256 34d1c0bc4e159421d45f3b09cfb20d6745a203e0a2ccb5e82be8caa5d833e8e7
                • MD5 SHA1 SHA512 SSDEEP

                agentreviewIntoRefdhcp.exe

                • Path \MsWebSession\agentreviewIntoRefdhcp.exe
                • Size 1.2MB
                • SHA256 9ef5daa8ee8c98bf35c6f6acd7f27b4594756f8a3e40e80210c2bf582cb4da63
                • MD5 SHA1 SHA512 SSDEEP

                MSIAA32.tmp

                • Path \Users\Admin\AppData\Local\Temp\MSIAA32.tmp
                • Size 709KB
                • SHA256 ad706739b04256b9215e80d2d030863a37f0d7fd0e4071d0a3a73d6704d8bd8f
                • MD5 SHA1 SHA512 SSDEEP

                SandelloChecker.exe

                • Path \Users\Admin\AppData\Local\Temp\SandelloChecker.exe
                • Size 7.6MB
                • SHA256 882cee3547e9b76f417d46efdd183be7ceecf25e64a8fb0967e7690beb3e21f4
                • MD5 SHA1 SHA512 SSDEEP

                WindowsMD5Checker.exe

                • Path \Users\Admin\AppData\Local\Temp\WindowsMD5Checker.exe
                • Size 607KB
                • SHA256 6e50d404e6b5beb355482538bd590a34d5a95bed2ef1adac3ae5c8047cd73c40
                • MD5 SHA1 SHA512 SSDEEP

                memory/1680-275-0x0000000076AB0000-0x0000000076AB1000-memory.dmp

                memory/1680-269-0x0000000076AC0000-0x0000000076AC1000-memory.dmp

                memory/1680-267-0x000000001B4C0000-0x000000001B540000-memory.dmp

                memory/1680-266-0x0000000000250000-0x0000000000251000-memory.dmp

                memory/1680-265-0x000000001B4C0000-0x000000001B540000-memory.dmp

                memory/1680-264-0x000007FEF3920000-0x000007FEF430C000-memory.dmp

                memory/1680-263-0x0000000000E50000-0x00000000011E8000-memory.dmp

                memory/1680-270-0x000000001B4C0000-0x000000001B540000-memory.dmp

                memory/2144-0-0x0000000000020000-0x000000000002F000-memory.dmp

                memory/2284-195-0x000000001B390000-0x000000001B410000-memory.dmp

                memory/2284-218-0x000000001AE30000-0x000000001AE42000-memory.dmp

                memory/2284-182-0x0000000076AA0000-0x0000000076AA1000-memory.dmp

                memory/2284-184-0x00000000006F0000-0x000000000070C000-memory.dmp

                memory/2284-187-0x0000000000530000-0x0000000000540000-memory.dmp

                memory/2284-185-0x0000000076A90000-0x0000000076A91000-memory.dmp

                memory/2284-188-0x0000000076A80000-0x0000000076A81000-memory.dmp

                memory/2284-190-0x00000000009D0000-0x00000000009E8000-memory.dmp

                memory/2284-192-0x0000000000540000-0x0000000000550000-memory.dmp

                memory/2284-193-0x000007FEF4310000-0x000007FEF4CFC000-memory.dmp

                memory/2284-194-0x0000000076A70000-0x0000000076A71000-memory.dmp

                memory/2284-179-0x0000000076AB0000-0x0000000076AB1000-memory.dmp

                memory/2284-198-0x0000000000550000-0x0000000000560000-memory.dmp

                memory/2284-197-0x0000000076A60000-0x0000000076A61000-memory.dmp

                memory/2284-199-0x0000000076A50000-0x0000000076A51000-memory.dmp

                memory/2284-201-0x0000000000660000-0x000000000066E000-memory.dmp

                memory/2284-204-0x00000000023D0000-0x00000000023E2000-memory.dmp

                memory/2284-202-0x0000000076A40000-0x0000000076A41000-memory.dmp

                memory/2284-205-0x000000001B390000-0x000000001B410000-memory.dmp

                memory/2284-206-0x0000000076A30000-0x0000000076A31000-memory.dmp

                memory/2284-208-0x00000000009F0000-0x00000000009FC000-memory.dmp

                memory/2284-209-0x000000001B390000-0x000000001B410000-memory.dmp

                memory/2284-212-0x0000000076A20000-0x0000000076A21000-memory.dmp

                memory/2284-211-0x0000000000A00000-0x0000000000A10000-memory.dmp

                memory/2284-215-0x000000001AD00000-0x000000001AD16000-memory.dmp

                memory/2284-213-0x0000000076A10000-0x0000000076A11000-memory.dmp

                memory/2284-216-0x0000000076A00000-0x0000000076A01000-memory.dmp

                memory/2284-181-0x0000000000520000-0x000000000052E000-memory.dmp

                memory/2284-219-0x00000000769F0000-0x00000000769F1000-memory.dmp

                memory/2284-221-0x0000000000A10000-0x0000000000A1E000-memory.dmp

                memory/2284-222-0x00000000769E0000-0x00000000769E1000-memory.dmp

                memory/2284-224-0x00000000022C0000-0x00000000022D0000-memory.dmp

                memory/2284-225-0x00000000769D0000-0x00000000769D1000-memory.dmp

                memory/2284-227-0x000000001A900000-0x000000001A910000-memory.dmp

                memory/2284-228-0x00000000769C0000-0x00000000769C1000-memory.dmp

                memory/2284-230-0x000000001B2D0000-0x000000001B32A000-memory.dmp

                memory/2284-231-0x00000000769B0000-0x00000000769B1000-memory.dmp

                memory/2284-233-0x000000001ACE0000-0x000000001ACEE000-memory.dmp

                memory/2284-235-0x000000001ACF0000-0x000000001AD00000-memory.dmp

                memory/2284-237-0x000000001AD20000-0x000000001AD2E000-memory.dmp

                memory/2284-239-0x000000001AE70000-0x000000001AE88000-memory.dmp

                memory/2284-241-0x000000001AE50000-0x000000001AE5C000-memory.dmp

                memory/2284-242-0x0000000076960000-0x0000000076961000-memory.dmp

                memory/2284-244-0x000000001B330000-0x000000001B37E000-memory.dmp

                memory/2284-178-0x0000000000990000-0x00000000009B6000-memory.dmp

                memory/2284-259-0x000007FEF4310000-0x000007FEF4CFC000-memory.dmp

                memory/2284-176-0x000000001B390000-0x000000001B410000-memory.dmp

                memory/2284-175-0x0000000076AC0000-0x0000000076AC1000-memory.dmp

                memory/2284-169-0x0000000000160000-0x00000000004F8000-memory.dmp

                memory/2284-174-0x000000001B390000-0x000000001B410000-memory.dmp

                memory/2284-172-0x0000000000130000-0x0000000000131000-memory.dmp

                memory/2284-171-0x000000001B390000-0x000000001B410000-memory.dmp

                memory/2284-170-0x000007FEF4310000-0x000007FEF4CFC000-memory.dmp

                memory/2452-173-0x00000000002B0000-0x00000000002B1000-memory.dmp

                memory/2452-21-0x00000000002B0000-0x00000000002B1000-memory.dmp