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Analysis

  • max time kernel
    138s
  • 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
    20/10/2022, 23:42

General

  • Target

    a4f9be4c9a5b2f2fa99f64cfea613002598367b45bcbc19701baa92e5939ad05.exe

  • Size

    108KB

  • MD5

    5158cbc5219cd885942230898b2e8410

  • SHA1

    0e535b3cdd8bf63be71e9759a4142ed99f4c58b9

  • SHA256

    a4f9be4c9a5b2f2fa99f64cfea613002598367b45bcbc19701baa92e5939ad05

  • SHA512

    79f46319dcf52fbdc2c2ac9ef84d1dea76b3f938b5cb909c110e6f60ba57ed0ec8ab643d291a35cbee051ec9d2613123967696e308936a87f64c58f6f9bd9229

  • SSDEEP

    3072:DCzpObod00G60pEmaj0dw0w0QtqE6YahRh7JtR/ABP:yMPzpEmlGKsq8ahB7ABP

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 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 4 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 22 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 8 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:788
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:336
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
        1⤵
          PID:2452
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:2212
            • C:\Users\Admin\AppData\Local\Temp\a4f9be4c9a5b2f2fa99f64cfea613002598367b45bcbc19701baa92e5939ad05.exe
              "C:\Users\Admin\AppData\Local\Temp\a4f9be4c9a5b2f2fa99f64cfea613002598367b45bcbc19701baa92e5939ad05.exe"
              2⤵
              • Modifies firewall policy service
              • UAC bypass
              • Windows security bypass
              • Windows security modification
              • Checks whether UAC is enabled
              • Enumerates connected drives
              • Drops file in Program Files directory
              • Drops file in Windows directory
              • Checks SCSI registry key(s)
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              • System policy modification
              PID:3336
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32.exe advpack.dll,LaunchINFSection C:\Windows\system32\Fidtbrv.del,FidTblt.Remove
                3⤵
                  PID:3064
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
              1⤵
                PID:3084
              • 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:3368
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3276
                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                      1⤵
                        PID:3520
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3688
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:4548
                          • C:\Windows\system32\backgroundTaskHost.exe
                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                            1⤵
                              PID:4692
                            • C:\Windows\system32\backgroundTaskHost.exe
                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                              1⤵
                                PID:2004
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:2596
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:2408
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:796
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:1176

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/3336-132-0x0000000000400000-0x000000000041B000-memory.dmp

                                        Filesize

                                        108KB

                                      • memory/3336-133-0x00000000022E0000-0x000000000336E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/3336-134-0x00000000022E0000-0x000000000336E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/3336-135-0x00000000022E0000-0x000000000336E000-memory.dmp

                                        Filesize

                                        16.6MB

                                      • memory/3336-137-0x0000000000400000-0x000000000041B000-memory.dmp

                                        Filesize

                                        108KB

                                      • memory/3336-138-0x00000000022E0000-0x000000000336E000-memory.dmp

                                        Filesize

                                        16.6MB