Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 10:22

General

  • Target

    2024-12-16_042ffef8ccf20f6ab7c94d704ad25725_bkransomware_floxif_karagany.exe

  • Size

    2.4MB

  • MD5

    042ffef8ccf20f6ab7c94d704ad25725

  • SHA1

    4023bef967ab6e582d95cec7cac86ffeb68f5900

  • SHA256

    a32ef8ac8833e9d0d1a87aa6250986ba02af089f0f394576027a44de8683e225

  • SHA512

    11dfae4b75bad1fedc8aa37dbddf768ee935a20c1d603095e667760525c0b943df662c56aeb07522e3f697c3cf9b26a072bcae86a2bcd32871b5d1dfc861efc5

  • SSDEEP

    6144:0BbDJvVo23+FM2+zIv+qgmeeyeDMzJYTxJxBV+UdvrEFp7hK7c:aDJvVXt4lDaNYTJBjvrEH7+c

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 3 TTPs 3 IoCs
  • Sality

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

  • Sality family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:780
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:788
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:64
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2792
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2880
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2260
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3476
                  • C:\Users\Admin\AppData\Local\Temp\2024-12-16_042ffef8ccf20f6ab7c94d704ad25725_bkransomware_floxif_karagany.exe
                    "C:\Users\Admin\AppData\Local\Temp\2024-12-16_042ffef8ccf20f6ab7c94d704ad25725_bkransomware_floxif_karagany.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Drops file in System32 directory
                    • Drops file in Program Files directory
                    • Drops file in Windows directory
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:1648
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3560
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3772
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3860
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3932
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4056
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4124
                            • 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:5088
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3288

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • memory/1648-0-0x00000000005F0000-0x000000000062B000-memory.dmp

                                  Filesize

                                  236KB

                                • memory/1648-3-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-8-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-9-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-10-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-11-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-12-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-13-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-7-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-14-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-15-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-19-0x0000000001290000-0x0000000001291000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1648-18-0x0000000000DF0000-0x0000000000DF2000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/1648-40-0x0000000002AB0000-0x0000000003B3E000-memory.dmp

                                  Filesize

                                  16.6MB

                                • memory/1648-47-0x00000000005F0000-0x000000000062B000-memory.dmp

                                  Filesize

                                  236KB