Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/06/2024, 05:59

General

  • Target
    b716ecf681cd8ba430cf20639914013b_JaffaCakes118.exe
  • Size 184KB
  • Sample240617-gp4k1a1fml
  • SHA256 51101d0364db593d038389bf492e5b14166d5f2fd5618b692a389434a8f8eaa7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 25 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2520
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
      1⤵
        PID:2560
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2648
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
          • Adds Run key to start application
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:3524
          • C:\Users\Admin\AppData\Local\Temp\b716ecf681cd8ba430cf20639914013b_JaffaCakes118.exe
            "C:\Users\Admin\AppData\Local\Temp\b716ecf681cd8ba430cf20639914013b_JaffaCakes118.exe"
            2⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:3416
            • C:\Users\Admin\AppData\Local\Temp\b716ecf681cd8ba430cf20639914013b_JaffaCakes118.exe
              "C:\Users\Admin\AppData\Local\Temp\b716ecf681cd8ba430cf20639914013b_JaffaCakes118.exe"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1044
              • C:\Users\Admin\AppData\Roaming\Yniq\ivyba.exe
                "C:\Users\Admin\AppData\Roaming\Yniq\ivyba.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:5040
                • C:\Users\Admin\AppData\Roaming\Yniq\ivyba.exe
                  "C:\Users\Admin\AppData\Roaming\Yniq\ivyba.exe"
                  5⤵
                  • Executes dropped EXE
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • Suspicious use of WriteProcessMemory
                  PID:5056
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp_921dcf2d.bat"
                4⤵
                  PID:324
                  • C:\Windows\System32\Conhost.exe
                    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                    5⤵
                      PID:4856
              • C:\Windows\System32\vssadmin.exe
                "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
                2⤵
                • Interacts with shadow copies
                PID:3708
                • C:\Windows\System32\Conhost.exe
                  \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                  3⤵
                    PID:424
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                1⤵
                  PID:3648
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  1⤵
                    PID:3836
                  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                    1⤵
                      PID:3980
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:4048
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:940
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:3952
                          • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                            "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                            1⤵
                              PID:2436
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window
                              1⤵
                                PID:5096
                                • 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:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=124.0.6367.118 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=124.0.2478.80 --initial-client-data=0x238,0x23c,0x240,0x234,0x248,0x7ff8390dceb8,0x7ff8390dcec4,0x7ff8390dced0
                                  2⤵
                                    PID:4000
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=2264,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=2260 /prefetch:2
                                    2⤵
                                      PID:1884
                                    • 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 --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=1948,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=2556 /prefetch:3
                                      2⤵
                                        PID:4756
                                      • 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 --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2400,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=2672 /prefetch:8
                                        2⤵
                                          PID:4512
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4296,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=1328 /prefetch:8
                                          2⤵
                                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                                          PID:4800
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:1912
                                        • C:\Windows\system32\backgroundTaskHost.exe
                                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                          1⤵
                                          • Modifies registry class
                                          PID:3920
                                        • C:\Windows\system32\vssvc.exe
                                          C:\Windows\system32\vssvc.exe
                                          1⤵
                                          • Suspicious use of AdjustPrivilegeToken
                                          PID:2160
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                                          PID:3276
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                                          PID:868
                                        • C:\Windows\system32\DllHost.exe
                                          C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                          1⤵
                                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                                          PID:60

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              Local State

                                              • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                              • Size 37KB
                                              • SHA256 364050b2b5030ae2215c0e1c3150f05c2ce754ba812d8e8fb027e7dd28a38835
                                              • MD5 SHA1 SHA512 SSDEEP

                                              tmp_921dcf2d.bat

                                              • Path C:\Users\Admin\AppData\Local\Temp\tmp_921dcf2d.bat
                                              • Size 272B
                                              • SHA256 47a010f6f8a380ba25ae110c72973d102421686df0ce4b403444b5e276c7cd23
                                              • MD5 SHA1 SHA512

                                              ivyba.exe

                                              • Path C:\Users\Admin\AppData\Roaming\Yniq\ivyba.exe
                                              • Size 67KB
                                              • SHA256 6dd665ef6df9077262b41eb875451f998854e8d35e40cd095053f29ebc921d28
                                              • MD5 SHA1 SHA512 SSDEEP

                                              memory/424-69-0x0000025416450000-0x0000025416467000-memory.dmp

                                              memory/424-64-0x0000025416450000-0x0000025416467000-memory.dmp

                                              memory/940-57-0x000001D1A5BE0000-0x000001D1A5BF7000-memory.dmp

                                              memory/1044-11-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/1044-0-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/1044-3-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/1044-2-0x0000000000400000-0x0000000000412000-memory.dmp

                                              memory/1912-60-0x0000020AFE1A0000-0x0000020AFE1B7000-memory.dmp

                                              memory/1912-67-0x0000020AFE1A0000-0x0000020AFE1B7000-memory.dmp

                                              memory/2436-66-0x000001E127D80000-0x000001E127D97000-memory.dmp

                                              memory/2436-59-0x000001E127D80000-0x000001E127D97000-memory.dmp

                                              memory/2520-50-0x0000028B2C590000-0x0000028B2C5A7000-memory.dmp

                                              memory/2520-28-0x0000028B2C590000-0x0000028B2C5A7000-memory.dmp

                                              memory/2560-30-0x00000280BB7B0000-0x00000280BB7C7000-memory.dmp

                                              memory/2560-52-0x00000280BB7B0000-0x00000280BB7C7000-memory.dmp

                                              memory/2648-31-0x000002B9691E0000-0x000002B9691F7000-memory.dmp

                                              memory/2648-51-0x000002B9691E0000-0x000002B9691F7000-memory.dmp

                                              memory/3524-41-0x0000000002580000-0x0000000002597000-memory.dmp

                                              memory/3524-38-0x0000000002580000-0x0000000002597000-memory.dmp

                                              memory/3524-33-0x0000000002580000-0x0000000002597000-memory.dmp

                                              memory/3524-42-0x0000000002580000-0x0000000002597000-memory.dmp

                                              memory/3524-39-0x0000000002580000-0x0000000002597000-memory.dmp

                                              memory/3524-40-0x0000000002580000-0x0000000002597000-memory.dmp

                                              memory/3648-45-0x00000255F12E0000-0x00000255F12F7000-memory.dmp

                                              memory/3648-53-0x00000255F12E0000-0x00000255F12F7000-memory.dmp

                                              memory/3708-71-0x0000025527E90000-0x0000025527EA7000-memory.dmp

                                              memory/3708-63-0x0000025527E90000-0x0000025527EA7000-memory.dmp

                                              memory/3836-46-0x0000019EA3870000-0x0000019EA3887000-memory.dmp

                                              memory/3836-54-0x0000019EA3870000-0x0000019EA3887000-memory.dmp

                                              memory/3920-61-0x000001D542F70000-0x000001D542F87000-memory.dmp

                                              memory/3920-72-0x000001D542F70000-0x000001D542F87000-memory.dmp

                                              memory/3952-58-0x000001D3DD130000-0x000001D3DD147000-memory.dmp

                                              memory/3952-65-0x000001D3DD130000-0x000001D3DD147000-memory.dmp

                                              memory/3980-47-0x00000283696F0000-0x0000028369707000-memory.dmp

                                              memory/3980-55-0x00000283696F0000-0x0000028369707000-memory.dmp

                                              memory/4048-48-0x0000025AE0050000-0x0000025AE0067000-memory.dmp

                                              memory/4048-56-0x0000025AE0050000-0x0000025AE0067000-memory.dmp

                                              memory/4856-62-0x000001DA55500000-0x000001DA55517000-memory.dmp

                                              memory/4856-68-0x000001DA55500000-0x000001DA55517000-memory.dmp

                                              memory/5040-26-0x0000000001000000-0x000000000110B000-memory.dmp

                                              memory/5040-25-0x0000000000ED0000-0x0000000000FFA000-memory.dmp

                                              memory/5040-29-0x00000000013B0000-0x00000000014B0000-memory.dmp

                                              memory/5040-34-0x0000000001270000-0x00000000012A1000-memory.dmp

                                              memory/5040-36-0x0000000002D00000-0x0000000002D34000-memory.dmp

                                              memory/5040-15-0x0000000000570000-0x000000000062E000-memory.dmp

                                              memory/5040-27-0x0000000001110000-0x00000000011AD000-memory.dmp

                                              memory/5040-37-0x0000000002D40000-0x0000000002D67000-memory.dmp

                                              memory/5040-24-0x0000000000E30000-0x0000000000ECB000-memory.dmp

                                              memory/5040-23-0x0000000000D90000-0x0000000000E2E000-memory.dmp

                                              memory/5040-22-0x0000000000D60000-0x0000000000D8B000-memory.dmp

                                              memory/5040-19-0x00000000009D0000-0x0000000000B71000-memory.dmp

                                              memory/5040-20-0x0000000000B80000-0x0000000000C2C000-memory.dmp

                                              memory/5040-21-0x0000000000D30000-0x0000000000D52000-memory.dmp

                                              memory/5040-17-0x0000000000170000-0x0000000000200000-memory.dmp

                                              memory/5040-16-0x0000000000630000-0x00000000008F9000-memory.dmp

                                              memory/5040-35-0x0000000001230000-0x0000000001248000-memory.dmp

                                              memory/5040-43-0x00000000030B0000-0x00000000030BC000-memory.dmp

                                              memory/5040-44-0x00000000030C0000-0x0000000003143000-memory.dmp

                                              memory/5040-32-0x00000000011B0000-0x00000000011E0000-memory.dmp

                                              memory/5056-18-0x0000000000400000-0x0000000000417000-memory.dmp

                                              memory/5056-12-0x0000000000400000-0x0000000000417000-memory.dmp

                                              memory/5056-75-0x0000000004B80000-0x0000000004B97000-memory.dmp

                                              memory/5056-165-0x0000000000400000-0x0000000000417000-memory.dmp

                                              memory/5056-49-0x0000000000400000-0x0000000000417000-memory.dmp