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Analysis

  • max time kernel
    188s
  • max time network
    183s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2022, 04:15

General

  • Target

    cf29e470ef76e7183e7fa9799d9a8cb38ebf6acd3d8c378dfb220b221ed44e4d.exe

  • Size

    216KB

  • MD5

    5f1be5061d0b43c0c3bda688543f6b20

  • SHA1

    5505ccfaa16cff45350f27ecb2d4b93901136ff3

  • SHA256

    cf29e470ef76e7183e7fa9799d9a8cb38ebf6acd3d8c378dfb220b221ed44e4d

  • SHA512

    5ded78d5c7b197458e128f69d7afef7c93db3447eef4ae438b9bbe0e654ec7f487aff5e4c2bf396022494aee3496903199faf5ec3575759546dc5c3a1b10433f

  • SSDEEP

    6144:up5p9qAZcR/6TkINwl3EagHlwJKrqGoci:859C1GagHwOqFJ

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 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 24 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:768
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:60
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
          PID:3396
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:3292
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3460
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
              1⤵
                PID:3088
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:5024
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                  1⤵
                    PID:4172
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4764
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3768
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:3548
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:744
                            • C:\Users\Admin\AppData\Local\Temp\cf29e470ef76e7183e7fa9799d9a8cb38ebf6acd3d8c378dfb220b221ed44e4d.exe
                              "C:\Users\Admin\AppData\Local\Temp\cf29e470ef76e7183e7fa9799d9a8cb38ebf6acd3d8c378dfb220b221ed44e4d.exe"
                              2⤵
                              • UAC bypass
                              • Windows security bypass
                              • Disables RegEdit via registry modification
                              • Windows security 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:4820
                              • C:\Windows\SysWOW64\netsh.exe
                                netsh firewall set opmode disable
                                3⤵
                                • Modifies Windows Firewall
                                PID:2180
                                • C:\Windows\System32\Conhost.exe
                                  \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                                  4⤵
                                    PID:4484
                                • C:\Windows\SysWOW64\NOTEPAD.EXE
                                  "C:\Windows\system32\NOTEPAD.EXE"
                                  3⤵
                                    PID:3712
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:2972
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2868
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2848
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:776

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/3712-139-0x0000000000340000-0x0000000000357000-memory.dmp

                                        Filesize

                                        92KB

                                      • memory/4820-132-0x0000000001000000-0x0000000001033000-memory.dmp

                                        Filesize

                                        204KB

                                      • memory/4820-133-0x0000000002450000-0x0000000003483000-memory.dmp

                                        Filesize

                                        16.2MB

                                      • memory/4820-134-0x0000000002450000-0x0000000003483000-memory.dmp

                                        Filesize

                                        16.2MB

                                      • memory/4820-136-0x0000000002450000-0x0000000003483000-memory.dmp

                                        Filesize

                                        16.2MB

                                      • memory/4820-137-0x0000000001000000-0x0000000001033000-memory.dmp

                                        Filesize

                                        204KB