Analysis

  • max time kernel
    112s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 23:34

General

  • Target

    608301a9d0e0e0eb6ed8546ef9faf0fd213d09c959612b499813170d9302f02f.exe

  • Size

    979KB

  • MD5

    61f4e9350bb8c30207fdcad34a719a1c

  • SHA1

    99f82c612f4d20549fc750a661130fc8610c4733

  • SHA256

    608301a9d0e0e0eb6ed8546ef9faf0fd213d09c959612b499813170d9302f02f

  • SHA512

    97a7162287e574116b81874b93bd23361d618702e479cad4bb695264c169bd370b3dfc572ca4f182c1e5aa41eb44d36a20b67c2247826c90511b08878e139737

  • SSDEEP

    24576:XinYcjntnpksVzSEQR+Ms+5RY2ZpmAPCajNqEp86ECJn20U:TCpksVF3S5f+APCwpRA0U

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:776
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:328
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3452
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3380
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:3292
            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
              1⤵
                PID:3560
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                1⤵
                  PID:5108
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:4616
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4492
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3752
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:3080
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:1040
                            • C:\Users\Admin\AppData\Local\Temp\608301a9d0e0e0eb6ed8546ef9faf0fd213d09c959612b499813170d9302f02f.exe
                              "C:\Users\Admin\AppData\Local\Temp\608301a9d0e0e0eb6ed8546ef9faf0fd213d09c959612b499813170d9302f02f.exe"
                              2⤵
                              • Modifies firewall policy service
                              • UAC bypass
                              • Windows security bypass
                              • Windows security modification
                              • Checks whether UAC is enabled
                              • Enumerates connected drives
                              • Drops file in Windows directory
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              • System policy modification
                              PID:4936
                              • C:\Users\Admin\AppData\Local\Temp\is-PB1DA.tmp\is-R9B0P.tmp
                                "C:\Users\Admin\AppData\Local\Temp\is-PB1DA.tmp\is-R9B0P.tmp" /SL4 $40162 "C:\Users\Admin\AppData\Local\Temp\608301a9d0e0e0eb6ed8546ef9faf0fd213d09c959612b499813170d9302f02f.exe" 695698 51712
                                3⤵
                                • Executes dropped EXE
                                PID:4908
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2924
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2808
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2772
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:784

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Temp\is-PB1DA.tmp\is-R9B0P.tmp

                                    Filesize

                                    616KB

                                    MD5

                                    0e5fd0fc130e2380b08edca8f822f382

                                    SHA1

                                    e36aacde42ac8f297d3bffb379c021639ef4c06a

                                    SHA256

                                    d3f6c4e1b8e6d11661d4bdf79b438382bb5951e7a42cedbcac3ebbe88012373c

                                    SHA512

                                    efaabebb37413eb2a689be4070827dbeb9ba8f88f6a90a3ed33225c68eb02e43e4760dcfdf3e59eba589db0519e9ac447035ef9b3822c0414ccebdc79a5bde37

                                  • C:\Users\Admin\AppData\Local\Temp\is-PB1DA.tmp\is-R9B0P.tmp

                                    Filesize

                                    616KB

                                    MD5

                                    0e5fd0fc130e2380b08edca8f822f382

                                    SHA1

                                    e36aacde42ac8f297d3bffb379c021639ef4c06a

                                    SHA256

                                    d3f6c4e1b8e6d11661d4bdf79b438382bb5951e7a42cedbcac3ebbe88012373c

                                    SHA512

                                    efaabebb37413eb2a689be4070827dbeb9ba8f88f6a90a3ed33225c68eb02e43e4760dcfdf3e59eba589db0519e9ac447035ef9b3822c0414ccebdc79a5bde37

                                  • memory/4936-132-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4936-136-0x0000000000400000-0x0000000000424000-memory.dmp

                                    Filesize

                                    144KB

                                  • memory/4936-137-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4936-138-0x0000000000400000-0x0000000000424000-memory.dmp

                                    Filesize

                                    144KB

                                  • memory/4936-139-0x00000000022D0000-0x000000000335E000-memory.dmp

                                    Filesize

                                    16.6MB