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Analysis

  • max time kernel
    192s
  • max time network
    221s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 07:12

General

  • Target

    7df88cf4afafd291cf3978ecc676389eb95fe95683c0da8708cd7e6d437390c7.exe

  • Size

    100KB

  • MD5

    d218f6601f773a40fd9441cc710e1bd8

  • SHA1

    936074dcb4beabb6954d6db110f7daef85c1516c

  • SHA256

    7df88cf4afafd291cf3978ecc676389eb95fe95683c0da8708cd7e6d437390c7

  • SHA512

    604bdb504cf1f81112e74c3c6e0cf3256b368d4768ac1174ac5c158f03ea782f174749542fd0b85eaaa5c4b6430aa3298acc505d9f41c92c81ac62f61e0abaea

  • SSDEEP

    1536:1VQvf686nGm5nCzvI/O4/bMX8j5dJNSgZ2xj8NVasQf:Yf68QGm5CzI/r7Nr9NVDQf

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 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
  • Enumerates connected drives 3 TTPs 14 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

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

  • 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:312
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2408
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3460
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3504
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
            1⤵
              PID:2100
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
              1⤵
                PID:3912
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:3720
                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                  1⤵
                    PID:3556
                  • 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:3288
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                        1⤵
                          PID:3088
                        • C:\Windows\Explorer.EXE
                          C:\Windows\Explorer.EXE
                          1⤵
                            PID:2688
                            • C:\Users\Admin\AppData\Local\Temp\7df88cf4afafd291cf3978ecc676389eb95fe95683c0da8708cd7e6d437390c7.exe
                              "C:\Users\Admin\AppData\Local\Temp\7df88cf4afafd291cf3978ecc676389eb95fe95683c0da8708cd7e6d437390c7.exe"
                              2⤵
                              • Modifies firewall policy service
                              • UAC bypass
                              • Windows security bypass
                              • Windows security modification
                              • Checks whether UAC is enabled
                              • Enumerates connected drives
                              • Drops autorun.inf file
                              • 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:1532
                          • C:\Windows\system32\taskhostw.exe
                            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                            1⤵
                              PID:2628
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                              1⤵
                                PID:2484
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:808
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:800
                                  • C:\Windows\system32\BackgroundTransferHost.exe
                                    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                                    1⤵
                                      PID:3200
                                    • C:\Windows\system32\DllHost.exe
                                      C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                      1⤵
                                        PID:2320
                                      • C:\Windows\system32\backgroundTaskHost.exe
                                        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                        1⤵
                                          PID:4920

                                        Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

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                                        Downloads

                                        • memory/1532-132-0x0000000000400000-0x0000000000413000-memory.dmp

                                          Filesize

                                          76KB

                                        • memory/1532-133-0x0000000002170000-0x00000000031FE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/1532-134-0x0000000002170000-0x00000000031FE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/1532-135-0x0000000002170000-0x00000000031FE000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/1532-136-0x0000000000400000-0x0000000000413000-memory.dmp

                                          Filesize

                                          76KB