Analysis

  • max time kernel
    601s
  • max time network
    485s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-10-2022 05:11

General

  • Target

    1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4.exe

  • Size

    228KB

  • MD5

    f37f9160e2cf021983080ee0046529be

  • SHA1

    65095a67c453db178b5735e7ecbeccbf1338ed75

  • SHA256

    1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4

  • SHA512

    e02014e203c776bf8f11ebd48dc9abf132a8a907fa87e21b0f37306b0924f56dce99af7ed5fbcd862b3c6173c7cf09335c2fc1d4edc6f5753bd16bfdbab2d5de

  • SSDEEP

    3072:at02MzGJiEWNgZEYCATuvcurAVI0XN0bHJJ2yMUp7JaHVKFqa:bNNguNATkAVI0iLFMiIKFqa

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2360
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:3624
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:5112
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:4856
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3964
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:3724
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3492
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  1⤵
                    PID:3392
                  • C:\Windows\Explorer.EXE
                    C:\Windows\Explorer.EXE
                    1⤵
                      PID:1996
                      • C:\Users\Admin\AppData\Local\Temp\1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4.exe
                        "C:\Users\Admin\AppData\Local\Temp\1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4.exe"
                        2⤵
                        • Checks computer location settings
                        • Checks SCSI registry key(s)
                        • Suspicious use of WriteProcessMemory
                        PID:4980
                        • C:\Users\Admin\AppData\Roaming\Microsoft\Tfijdycf\tfijdyc.exe
                          C:\Users\Admin\AppData\Roaming\Microsoft\Tfijdycf\tfijdyc.exe
                          3⤵
                          • Executes dropped EXE
                          • Checks SCSI registry key(s)
                          • Suspicious behavior: MapViewOfSection
                          • Suspicious use of WriteProcessMemory
                          PID:3192
                          • C:\Windows\SysWOW64\explorer.exe
                            C:\Windows\SysWOW64\explorer.exe
                            4⤵
                            • Adds Run key to start application
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:1028
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\System32\cmd.exe" /c ping.exe -n 6 127.0.0.1 & type "C:\Windows\\System32\\autoconv.exe" > "C:\Users\Admin\AppData\Local\Temp\1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4.exe" & del /F /Q "C:\Users\Admin\AppData\Local\Temp\1f7d74e5ccf5681021323717359f
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of WriteProcessMemory
                          PID:4220
                          • C:\Windows\System32\Conhost.exe
                            \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                            4⤵
                              PID:4772
                            • C:\Windows\SysWOW64\PING.EXE
                              ping.exe -n 6 127.0.0.1
                              4⤵
                              • Runs ping.exe
                              PID:3216
                      • C:\Windows\system32\taskhostw.exe
                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                        1⤵
                          PID:2508
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                          1⤵
                            PID:2624

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Roaming\Microsoft\Tfijdycf\tfijdy.dll

                            Filesize

                            79B

                            MD5

                            9bdfc3d284e35bd0ff274fc34138560b

                            SHA1

                            beff3a8e437f11ea10a3cc3fc42837454c7528a2

                            SHA256

                            17f5998d92ef99c669f31b064cbaf992835c59eaa7b4f5f3cf7c828f54a53909

                            SHA512

                            1aa6b4c51cb7e0d987de3839a20dbf599369841ea715f3b18cf06c471d50dcb0857211c4083d5af21e1f15ef043237efdeccc62050d71ff99f90af521c629837

                          • C:\Users\Admin\AppData\Roaming\Microsoft\Tfijdycf\tfijdyc.exe

                            Filesize

                            228KB

                            MD5

                            f37f9160e2cf021983080ee0046529be

                            SHA1

                            65095a67c453db178b5735e7ecbeccbf1338ed75

                            SHA256

                            1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4

                            SHA512

                            e02014e203c776bf8f11ebd48dc9abf132a8a907fa87e21b0f37306b0924f56dce99af7ed5fbcd862b3c6173c7cf09335c2fc1d4edc6f5753bd16bfdbab2d5de

                          • C:\Users\Admin\AppData\Roaming\Microsoft\Tfijdycf\tfijdyc.exe

                            Filesize

                            228KB

                            MD5

                            f37f9160e2cf021983080ee0046529be

                            SHA1

                            65095a67c453db178b5735e7ecbeccbf1338ed75

                            SHA256

                            1f7d74e5ccf5681021323717359fb3efc6213d45ee84628c56f476f856477df4

                            SHA512

                            e02014e203c776bf8f11ebd48dc9abf132a8a907fa87e21b0f37306b0924f56dce99af7ed5fbcd862b3c6173c7cf09335c2fc1d4edc6f5753bd16bfdbab2d5de

                          • memory/1028-168-0x0000000000950000-0x000000000098F000-memory.dmp

                            Filesize

                            252KB

                          • memory/1028-150-0x00000000004E0000-0x000000000050F000-memory.dmp

                            Filesize

                            188KB

                          • memory/1028-151-0x0000000000950000-0x000000000098F000-memory.dmp

                            Filesize

                            252KB

                          • memory/1028-167-0x00000000004E0000-0x000000000050F000-memory.dmp

                            Filesize

                            188KB

                          • memory/3216-165-0x00000000013B0000-0x00000000013EF000-memory.dmp

                            Filesize

                            252KB

                          • memory/4220-156-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-161-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-157-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-154-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-158-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-159-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-160-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-162-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-163-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-164-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-155-0x0000000002A60000-0x0000000002AE0000-memory.dmp

                            Filesize

                            512KB

                          • memory/4220-166-0x0000000000790000-0x00000000007CF000-memory.dmp

                            Filesize

                            252KB

                          • memory/4220-153-0x0000000000790000-0x00000000007CF000-memory.dmp

                            Filesize

                            252KB

                          • memory/4980-132-0x0000000070000000-0x0000000070039000-memory.dmp

                            Filesize

                            228KB