Analysis

  • max time kernel
    144s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 07:24

General

  • Target

    cc6962b007a8512fd286d0d50489e3f0_JaffaCakes118.exe

  • Size

    900KB

  • MD5

    cc6962b007a8512fd286d0d50489e3f0

  • SHA1

    326665ca3524b4b1afbf2ecb5c3096ff19e7de55

  • SHA256

    deba095b9ba5ffd6ea866849da264d0197efbaf12acd27b900213354d0fa18ff

  • SHA512

    4173a8311a6feeac481ecc8551252122f0fd04e1a9a7fb549d735078e5bf84a6e8e311f905c0e30f3eaef1eaf1bbd50eb05de3b623922f0a9859c9b99be1fa4d

  • SSDEEP

    24576:ZotQUwXBNssktnYM441giJ22zPubfCMqtPQgqevcZGq2bl:OtQUgQPuOJtTtvcZVwl

Malware Config

Signatures

  • Expiro, m0yv

    Expiro aka m0yv is a multi-functional backdoor written in C++.

  • Expiro payload 36 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2516
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
      1⤵
        PID:2600
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2904
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:3420
            • C:\Users\Admin\AppData\Local\Temp\cc6962b007a8512fd286d0d50489e3f0_JaffaCakes118.exe
              "C:\Users\Admin\AppData\Local\Temp\cc6962b007a8512fd286d0d50489e3f0_JaffaCakes118.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2864
              • C:\Users\Admin\AppData\Roaming\Vuocig\xoarc.exe
                "C:\Users\Admin\AppData\Roaming\Vuocig\xoarc.exe"
                3⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:3676
                • C:\Windows\SysWOW64\explorer.exe
                  "C:\Windows\SysWOW64\explorer.exe"
                  4⤵
                  • System Location Discovery: System Language Discovery
                  PID:2740
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpd948ccaa.bat"
                3⤵
                • System Location Discovery: System Language Discovery
                PID:3328
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:3576
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:3752
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3844
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3904
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3996
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:2820
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:2128
                        • 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:2084
                          • C:\Windows\system32\backgroundTaskHost.exe
                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                            1⤵
                              PID:712
                            • C:\Windows\system32\backgroundTaskHost.exe
                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                              1⤵
                                PID:4732
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:220
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:1252

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Temp\tmpd948ccaa.bat

                                    Filesize

                                    271B

                                    MD5

                                    9a001679c86fef555b96bae5aebef034

                                    SHA1

                                    845a341dc644736b3eb82844e8366f4d9cf73eaa

                                    SHA256

                                    f5916cf16de4f08067573ca5299c4e64c106bef81fd4cddb380705e1616884d1

                                    SHA512

                                    9195c4112921efe681ae95bb02ff5611d23d47ac3145c55e8bc80861963f3a7d33e5bc9a40e7b1a7a68ca591c509cd15e0c1cc2b5db8668756c26c944b49ce00

                                  • C:\Users\Admin\AppData\Roaming\Vuocig\xoarc.exe

                                    Filesize

                                    900KB

                                    MD5

                                    e3dd74f06cf288452a1f0abbb59c344f

                                    SHA1

                                    08caf81691909c9cfce1cd92b99b70d5d3e48883

                                    SHA256

                                    9f8743ad4df63d5be9a23c328edf1bb8e4ded1da16d0eec413fe94e7d5448ad3

                                    SHA512

                                    09fa6d62ad52d777f16e0bb3e0faebce1b935543f43702a49b96b3b94dd3b8d152a349b9c0dbf9661ebcf4ee0262a9b3235114910a07f961fa49590de328a6d1

                                  • memory/2740-45-0x0000000000460000-0x0000000000491000-memory.dmp

                                    Filesize

                                    196KB

                                  • memory/2740-41-0x0000000000460000-0x0000000000491000-memory.dmp

                                    Filesize

                                    196KB

                                  • memory/2864-24-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-13-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-7-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-26-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-10-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-1-0x0000000000403000-0x0000000000404000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2864-12-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-27-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-14-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-15-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-16-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-18-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-20-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-19-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-17-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-21-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-22-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-23-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-0-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-25-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-9-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-8-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-11-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-6-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-55-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-54-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-47-0x0000000000900000-0x0000000000931000-memory.dmp

                                    Filesize

                                    196KB

                                  • memory/2864-46-0x0000000000900000-0x0000000000931000-memory.dmp

                                    Filesize

                                    196KB

                                  • memory/2864-2-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/2864-5-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-43-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-42-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-40-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-44-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-39-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-38-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-36-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-52-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-35-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-34-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB

                                  • memory/3676-32-0x0000000000400000-0x00000000006A3000-memory.dmp

                                    Filesize

                                    2.6MB