Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 16:47

General

  • Target

    844fdf64fe61602727a3607b9f3a878c5c55b8458bc133b044fe15b0358d74ee.exe

  • Size

    142KB

  • MD5

    04fcc30dc19ef4b80a75212e6eed46dc

  • SHA1

    000721d3947af3f015fbe79e3ff61bbde8ddf280

  • SHA256

    844fdf64fe61602727a3607b9f3a878c5c55b8458bc133b044fe15b0358d74ee

  • SHA512

    1fe8f2eef44954771a0f0c82211a1f58fb609d682cbe8ca17a6afa572d9c09f6212817f57ace14e625dd87f8f10e506fdca7dd447f78ec0d5477a3e8032297fa

  • SSDEEP

    3072:pNQKPWDygI0CLsICg92cnyeDr24JMvTd2/xU1TeX0mZ:pNSDygINsXg4DTUxxkmZ

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
  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 11 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:784
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:312
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2448
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3356
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3424
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
              1⤵
                PID:4128
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4596
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3692
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3516
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      1⤵
                        PID:3264
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:2840
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2984
                            • C:\Users\Admin\AppData\Local\Temp\844fdf64fe61602727a3607b9f3a878c5c55b8458bc133b044fe15b0358d74ee.exe
                              "C:\Users\Admin\AppData\Local\Temp\844fdf64fe61602727a3607b9f3a878c5c55b8458bc133b044fe15b0358d74ee.exe"
                              2⤵
                              • UAC bypass
                              • Disables RegEdit via registry modification
                              • Checks whether UAC is enabled
                              • Drops file in Program Files directory
                              • Drops file in Windows directory
                              • Modifies registry class
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              • System policy modification
                              PID:1152
                              • C:\Windows\SysWOW64\netsh.exe
                                netsh firewall set opmode disable
                                3⤵
                                • Modifies Windows Firewall
                                PID:3700
                              • C:\Windows\SysWOW64\NOTEPAD.EXE
                                "C:\Windows\system32\NOTEPAD.EXE"
                                3⤵
                                  PID:2996
                                • C:\Windows\SysWOW64\NOTEPAD.EXE
                                  "C:\Windows\system32\NOTEPAD.EXE"
                                  3⤵
                                    PID:2940
                                  • C:\Windows\SysWOW64\NOTEPAD.EXE
                                    "C:\Windows\system32\NOTEPAD.EXE"
                                    3⤵
                                      PID:3572
                                    • C:\Windows\SysWOW64\NOTEPAD.EXE
                                      "C:\Windows\system32\NOTEPAD.EXE"
                                      3⤵
                                        PID:1916
                                      • C:\Windows\SysWOW64\NOTEPAD.EXE
                                        "C:\Windows\system32\NOTEPAD.EXE"
                                        3⤵
                                          PID:3856
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                      1⤵
                                        PID:2336
                                      • C:\Windows\system32\sihost.exe
                                        sihost.exe
                                        1⤵
                                          PID:2320
                                        • C:\Windows\system32\fontdrvhost.exe
                                          "fontdrvhost.exe"
                                          1⤵
                                            PID:792
                                          • C:\Windows\System32\RuntimeBroker.exe
                                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                                            1⤵
                                              PID:3948

                                            Network

                                            MITRE ATT&CK Enterprise v6

                                            Replay Monitor

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                                            Downloads

                                            • memory/1152-132-0x0000000001000000-0x0000000001027000-memory.dmp

                                              Filesize

                                              156KB

                                            • memory/1152-133-0x0000000002440000-0x0000000003470000-memory.dmp

                                              Filesize

                                              16.2MB

                                            • memory/1152-147-0x0000000001000000-0x0000000001027000-memory.dmp

                                              Filesize

                                              156KB

                                            • memory/1152-135-0x0000000002440000-0x0000000003470000-memory.dmp

                                              Filesize

                                              16.2MB

                                            • memory/1152-136-0x0000000002440000-0x0000000003470000-memory.dmp

                                              Filesize

                                              16.2MB

                                            • memory/1916-144-0x0000000000F20000-0x0000000000F37000-memory.dmp

                                              Filesize

                                              92KB

                                            • memory/2940-140-0x0000000001220000-0x0000000001237000-memory.dmp

                                              Filesize

                                              92KB

                                            • memory/2996-138-0x0000000000330000-0x0000000000347000-memory.dmp

                                              Filesize

                                              92KB

                                            • memory/3572-142-0x0000000001220000-0x0000000001237000-memory.dmp

                                              Filesize

                                              92KB

                                            • memory/3856-146-0x0000000000F40000-0x0000000000F57000-memory.dmp

                                              Filesize

                                              92KB