Analysis

  • max time kernel
    140s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-04-2024 01:53

General

  • Target

    c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b.exe

  • Size

    2.4MB

  • MD5

    2a613d677cc3e2991dcd954e9413c40c

  • SHA1

    26f49090585d31dca8dde83106c0a851f00f2f18

  • SHA256

    c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b

  • SHA512

    b3edc9f56aa9c1f3685bb7e14d7dad27f23346bb1f21618acb3091c2031c1c5f48f77f375d97763b2da1b4658efd12a1147114bd65190b9f8c772d302d0f7a44

  • SSDEEP

    49152:I/oSNzCxuPz3v/EekOEQ5ZlC2WQcyDJFD6BaKAjB8eJMv+8KwXkZx+jau:I/oCCQv/EeJESlC2WbyDukrBDJMGXjG

Malware Config

Signatures

  • Detects Mimic ransomware 1 IoCs
  • Mimic

    Ransomware family was first exploited in the wild in 2022.

  • Modifies security service 2 TTPs 1 IoCs
  • Clears Windows event logs 1 TTPs 3 IoCs
  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects command variations typically used by ransomware 1 IoCs
  • Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware 1 IoCs
  • Detects executables containing commands for clearing Windows Event Logs 1 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes System State backups 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Sets file execution options in registry 2 TTPs 64 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Modifies system executable filetype association 2 TTPs 10 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 11 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 6 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\c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b.exe
    "C:\Users\Admin\AppData\Local\Temp\c7adce3459f21a1afb62f779d8baaa2ea3e7614b8fa312ac67725d532c15c54b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3280
    • C:\tempcrc\encrypt.exe
      "C:\tempcrc\encrypt.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4192
      • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
        "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe"
        3⤵
        • Modifies security service
        • Sets file execution options in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system executable filetype association
        • Adds Run key to start application
        • Enumerates connected drives
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:4144
        • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
          "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e watch -pid 4144 -!
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4552
        • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
          "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e ul1
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:5116
        • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
          "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e ul2
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4696
        • C:\Windows\SYSTEM32\powercfg.exe
          powercfg.exe -H off
          4⤵
            PID:444
          • C:\Windows\SYSTEM32\powercfg.exe
            powercfg.exe -SETACVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
            4⤵
              PID:4880
            • C:\Windows\SYSTEM32\powercfg.exe
              powercfg.exe -SETACVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
              4⤵
                PID:3688
              • C:\Windows\SYSTEM32\powercfg.exe
                powercfg.exe -SETACVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                4⤵
                  PID:4968
                • C:\Windows\SYSTEM32\powercfg.exe
                  powercfg.exe -SETDCVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
                  4⤵
                    PID:4276
                  • C:\Windows\SYSTEM32\powercfg.exe
                    powercfg.exe -SETDCVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
                    4⤵
                      PID:3720
                    • C:\Windows\SYSTEM32\powercfg.exe
                      powercfg.exe -SETDCVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                      4⤵
                        PID:4484
                      • C:\Windows\SYSTEM32\powercfg.exe
                        powercfg.exe -SETACVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
                        4⤵
                          PID:1248
                        • C:\Windows\SYSTEM32\powercfg.exe
                          powercfg.exe -SETACVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
                          4⤵
                            PID:1144
                          • C:\Windows\SYSTEM32\powercfg.exe
                            powercfg.exe -SETACVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                            4⤵
                              PID:5004
                            • C:\Windows\SYSTEM32\powercfg.exe
                              powercfg.exe -SETDCVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
                              4⤵
                                PID:4644
                              • C:\Windows\SYSTEM32\powercfg.exe
                                powercfg.exe -SETDCVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
                                4⤵
                                  PID:2592
                                • C:\Windows\SYSTEM32\powercfg.exe
                                  powercfg.exe -SETDCVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                                  4⤵
                                    PID:5084
                                  • C:\Windows\SYSTEM32\powercfg.exe
                                    powercfg.exe -S 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c
                                    4⤵
                                      PID:3892
                                    • C:\Windows\SYSTEM32\powercfg.exe
                                      powercfg.exe -S e9a42b02-d5df-448d-aa00-03f14749eb61
                                      4⤵
                                        PID:1968
                                      • C:\Windows\SYSTEM32\bcdedit.exe
                                        bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                                        4⤵
                                        • Modifies boot configuration data using bcdedit
                                        PID:1392
                                      • C:\Windows\SYSTEM32\bcdedit.exe
                                        bcdedit.exe /set {default} recoveryenabled no
                                        4⤵
                                        • Modifies boot configuration data using bcdedit
                                        PID:2284
                                      • C:\Windows\SYSTEM32\wbadmin.exe
                                        wbadmin.exe DELETE SYSTEMSTATEBACKUP
                                        4⤵
                                        • Deletes System State backups
                                        • Drops file in Windows directory
                                        PID:4012
                                      • C:\Windows\SYSTEM32\wbadmin.exe
                                        wbadmin.exe delete catalog -quiet
                                        4⤵
                                        • Deletes backup catalog
                                        PID:4460
                                      • C:\Windows\SysWOW64\notepad.exe
                                        notepad.exe "C:\Users\Admin\AppData\Local\HACKLENDINIZ.txt"
                                        4⤵
                                        • Opens file in notepad (likely ransom note)
                                        PID:740
                                      • C:\Windows\SysWOW64\wevtutil.exe
                                        wevtutil.exe cl security
                                        4⤵
                                        • Clears Windows event logs
                                        PID:1328
                                      • C:\Windows\SysWOW64\wevtutil.exe
                                        wevtutil.exe cl system
                                        4⤵
                                        • Clears Windows event logs
                                        PID:3980
                                      • C:\Windows\SysWOW64\wevtutil.exe
                                        wevtutil.exe cl application
                                        4⤵
                                        • Clears Windows event logs
                                        PID:3044
                                • C:\Windows\System32\Systray.exe
                                  C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                  1⤵
                                    PID:2932
                                  • C:\Windows\System32\Systray.exe
                                    C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                    1⤵
                                      PID:5060
                                    • C:\Windows\System32\Systray.exe
                                      C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                      1⤵
                                        PID:4444
                                      • C:\Windows\System32\Systray.exe
                                        C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                        1⤵
                                          PID:4548
                                        • C:\Windows\System32\Systray.exe
                                          C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                          1⤵
                                            PID:2680
                                          • C:\Windows\System32\Systray.exe
                                            C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                            1⤵
                                              PID:2548
                                            • C:\Windows\System32\Systray.exe
                                              C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                              1⤵
                                                PID:660
                                              • C:\Windows\System32\Systray.exe
                                                C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                1⤵
                                                  PID:1916
                                                • C:\Windows\System32\Systray.exe
                                                  C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                  1⤵
                                                    PID:4852
                                                  • C:\Windows\System32\Systray.exe
                                                    C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                    1⤵
                                                      PID:4504
                                                    • C:\Windows\system32\wbengine.exe
                                                      "C:\Windows\system32\wbengine.exe"
                                                      1⤵
                                                        PID:3628
                                                      • C:\Windows\System32\vdsldr.exe
                                                        C:\Windows\System32\vdsldr.exe -Embedding
                                                        1⤵
                                                          PID:832
                                                        • C:\Windows\System32\vds.exe
                                                          C:\Windows\System32\vds.exe
                                                          1⤵
                                                          • Checks SCSI registry key(s)
                                                          PID:4184
                                                        • C:\Windows\System32\Systray.exe
                                                          C:\Windows\System32\Systray.exe "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                          1⤵
                                                            PID:2468

                                                          Network

                                                          MITRE ATT&CK Enterprise v15

                                                          Replay Monitor

                                                          Loading Replay Monitor...

                                                          Downloads

                                                          • C:\Users\Admin\AppData\Local\encrypt\session.tmp

                                                            Filesize

                                                            32B

                                                            MD5

                                                            3d9bb2217dacf008addb33d7829beb36

                                                            SHA1

                                                            6ca42c85cfa1b8bc5a4c4efb6f2061e65f4181b1

                                                            SHA256

                                                            9691a9586a3345efb4c3943609929859eb1f0a80be50b06ced1a6144f9a7f796

                                                            SHA512

                                                            eec3e5b7011dcc4cb70c2977e70db776ec9d7bced671f67426b3b6e8fe5ceef77cd93503658537106ab09e7f49e214206584f813aab9c44d07140338b1776889

                                                          • C:\Users\Admin\Desktop\HACKLENDINIZ.txt

                                                            Filesize

                                                            1KB

                                                            MD5

                                                            041aa2e3cf34ee4658241e9372800f7c

                                                            SHA1

                                                            bf1bc09650cb6f7b49db8761b728d3795a8fa46b

                                                            SHA256

                                                            6d7b60f83c282c41c2df03b98f4b307ea3c4b0950ac24a9c259b7f44ff5959b5

                                                            SHA512

                                                            0a9ee614a83493874b92596c5798d86fe469ebda9ce0315a5825bced6f4b4c750362f8a18f3d11c507df40e3ebef22efc4625a80231d55d8a3e1b9c911ee1449

                                                          • C:\tempcrc\Everything32.dll

                                                            Filesize

                                                            84KB

                                                            MD5

                                                            3b03324537327811bbbaff4aafa4d75b

                                                            SHA1

                                                            1218bd8165a2e0ec56a88b5a8bb4b27e52b564e7

                                                            SHA256

                                                            8cae8a9740d466e17f16481e68de9cbd58265863c3924d66596048edfd87e880

                                                            SHA512

                                                            ba5312e1836bac0bb05b133b2b938be98b28646c8b8fc45804d7f252cd2e1a191667bfa8ba979bf2a07d49053114234b78cca83ef28aecf105d7169a3ec3dc62

                                                          • C:\tempcrc\encrypt.exe

                                                            Filesize

                                                            3.0MB

                                                            MD5

                                                            a48ee000e248741247c24dc70fa2f936

                                                            SHA1

                                                            4c814fe7c94e6fb4d1d89cdae7e6e83905c459d7

                                                            SHA256

                                                            bb28adc32ff1b9dcfaac6b7017b4896d2807b48080f9e6720afde3f89d69676c

                                                            SHA512

                                                            8bdd60732bf105b9ade5d4dbc5c722a866119e0a284692afc1bd5b530a4afc3954536a14946a87f72213c92020def2ac7b5c1cbcc51b6e0ad5671b7c58543f34