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Analysis

  • max time kernel
    91s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 22:00

General

  • Target

    c65d69e612522c6bedd133cfcec323b3b7076b506bc664143f24cd3f979de94a.exe

  • Size

    189KB

  • MD5

    6976277e1600cd91603714dbdfa92591

  • SHA1

    732576046b049fd4a7093366894d3efd7fd33ab1

  • SHA256

    c65d69e612522c6bedd133cfcec323b3b7076b506bc664143f24cd3f979de94a

  • SHA512

    353717a09765e4dc49d4bb1d5c30b1d9b1df953a81dd009c047dce3085bd143ae6dbdf1309c801ab86f74e196f2fc9c1d88c7cb0381259d6218ebc86c34e8b54

  • SSDEEP

    3072:FVm5jdZp1JeR07lfaytvSGRuo0vsxAJec6oMclbv7JLtRjAFxqlZUJtbMoIBZtko:FojdZp1JeR07lf7tvSfofI9RblAu3ct6

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

Signatures

  • Sality

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Modifies Windows Firewall 1 TTPs 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
  • 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 27 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:376
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2268
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3180
        • C:\Windows\system32\backgroundTaskHost.exe
          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
          1⤵
            PID:2828
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:4724
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3780
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3580
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3436
                  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                    1⤵
                      PID:3372
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      1⤵
                        PID:3272
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:2972
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2248
                            • C:\Users\Admin\AppData\Local\Temp\c65d69e612522c6bedd133cfcec323b3b7076b506bc664143f24cd3f979de94a.exe
                              "C:\Users\Admin\AppData\Local\Temp\c65d69e612522c6bedd133cfcec323b3b7076b506bc664143f24cd3f979de94a.exe"
                              2⤵
                              • UAC bypass
                              • Windows security bypass
                              • Disables RegEdit via registry modification
                              • Windows security modification
                              • Checks whether UAC is enabled
                              • Drops file in Windows directory
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              • System policy modification
                              PID:2960
                              • C:\Users\Admin\AppData\Local\Temp\c65d69e612522c6bedd133cfcec323b3b7076b506bc664143f24cd3f979de94a.exe
                                -deleter
                                3⤵
                                  PID:3772
                                • C:\Windows\SysWOW64\netsh.exe
                                  netsh firewall set opmode disable
                                  3⤵
                                  • Modifies Windows Firewall
                                  PID:64
                                  • C:\Windows\System32\Conhost.exe
                                    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                                    4⤵
                                      PID:4896
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:2416
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2280
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:804
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:792

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/2960-132-0x0000000000400000-0x0000000000431000-memory.dmp

                                        Filesize

                                        196KB

                                      • memory/2960-133-0x00000000022A0000-0x00000000032D3000-memory.dmp

                                        Filesize

                                        16.2MB

                                      • memory/2960-136-0x00000000022A0000-0x00000000032D3000-memory.dmp

                                        Filesize

                                        16.2MB

                                      • memory/2960-139-0x0000000000400000-0x0000000000431000-memory.dmp

                                        Filesize

                                        196KB

                                      • memory/2960-140-0x00000000022A0000-0x00000000032D3000-memory.dmp

                                        Filesize

                                        16.2MB

                                      • memory/3772-137-0x0000000000400000-0x0000000000431000-memory.dmp

                                        Filesize

                                        196KB

                                      • memory/3772-138-0x0000000000400000-0x0000000000431000-memory.dmp

                                        Filesize

                                        196KB