Analysis

  • max time kernel
    130s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2024, 21:45

General

  • Target

    775050c673393af1a3f36dd617734d5ec79964df494c3ab954cdfcc4a93e0dbd.exe

  • Size

    1.1MB

  • MD5

    19f530e6ee013b1e94f9c4ce1e338a9d

  • SHA1

    58b577f2d98aafcc0b661b50c615d32c212b3f6e

  • SHA256

    775050c673393af1a3f36dd617734d5ec79964df494c3ab954cdfcc4a93e0dbd

  • SHA512

    e21ee753036496593c9db3add0e3e6abb29f4961db8cb6b2d2db37b1f60a3c912d56bacb4716014c97ad2390407b43f500610ffc5e295d40ff8fcc13a56d860b

  • SSDEEP

    24576:N4U3X8wEKwArXRtrltivOT22qhwxbSUoNL/mzVf:N4U9wMRpBqhw5SUoNjMh

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

  • 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
  • UPX packed file 38 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 19 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 2 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:780
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:384
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3944
        • 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:4416
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:4792
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4188
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:4024
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:3880
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3788
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3588
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:3384
                          • C:\Users\Admin\AppData\Local\Temp\775050c673393af1a3f36dd617734d5ec79964df494c3ab954cdfcc4a93e0dbd.exe
                            "C:\Users\Admin\AppData\Local\Temp\775050c673393af1a3f36dd617734d5ec79964df494c3ab954cdfcc4a93e0dbd.exe"
                            2⤵
                            • Modifies firewall policy service
                            • UAC bypass
                            • Windows security bypass
                            • Windows security modification
                            • Checks whether UAC is enabled
                            • Enumerates connected drives
                            • Writes to the Master Boot Record (MBR)
                            • Drops autorun.inf file
                            • Drops file in System32 directory
                            • Drops file in Program Files directory
                            • Drops file in Windows directory
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            • System policy modification
                            PID:2960
                        • C:\Windows\system32\taskhostw.exe
                          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                          1⤵
                            PID:2708
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:2540
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:2524
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:784

                                Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      • C:\mqwfk.exe

                                        Filesize

                                        97KB

                                        MD5

                                        cd7f4139d67942c1a3300946893a0289

                                        SHA1

                                        e64941de228a98fa57859f2e5d6292347de1260f

                                        SHA256

                                        1babc9d26c6c37f796ef14ee7406eb1f8fedfdfaff067329348f2ec1537bdf04

                                        SHA512

                                        0fe8e598e1a052f060a577c790edd4b7410cf4c44bae9a2c6e88b4f331e4e375d49e9181d547cf95dc05c1775b388c892a19f05e4ff3f4242b0934536a8b3355

                                      • memory/2960-35-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-38-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-9-0x0000000003BB0000-0x0000000003BB2000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/2960-12-0x0000000003BB0000-0x0000000003BB2000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/2960-8-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-13-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-10-0x0000000003D80000-0x0000000003D81000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2960-14-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-15-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-16-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-17-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-18-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-24-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-25-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-26-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-27-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-28-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-0-0x0000000000400000-0x0000000000518000-memory.dmp

                                        Filesize

                                        1.1MB

                                      • memory/2960-31-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-32-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-5-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-33-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-29-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-40-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-42-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-45-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-47-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-49-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-51-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-53-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-55-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-57-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-59-0x0000000003BB0000-0x0000000003BB2000-memory.dmp

                                        Filesize

                                        8KB

                                      • memory/2960-60-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-67-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-68-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-69-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-71-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-73-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-75-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-77-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-79-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB

                                      • memory/2960-2-0x0000000002630000-0x00000000036EA000-memory.dmp

                                        Filesize

                                        16.7MB