Analysis

  • max time kernel
    368s
  • max time network
    392s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 01:47

General

  • Target

    4bb8002ca3b2a87bd5bdcb52b145c5be2b1a1a76e52d079e9956e79eccec342d.exe

  • Size

    100KB

  • MD5

    d07f0f2e910a5d36ae6360a5c0a67971

  • SHA1

    2e867013c1cb5689f033fce6bcf3648ae5f8db9d

  • SHA256

    4bb8002ca3b2a87bd5bdcb52b145c5be2b1a1a76e52d079e9956e79eccec342d

  • SHA512

    81d78dc165b0c90513b3c9e956fc06d078eab577cbb757bb854c904b4095ef31c1e812c5428b9eb343c9152bdab5f9c9a843b218f8367d1697b0cffcccce88b9

  • SSDEEP

    3072:6euine0dL3Sb4YXKSfSvvRkJqEcoL2ft0W0j:6eu4VdL3SMYhfSYjhL2ft0W6

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 2 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 autorun.inf file 1 TTPs 1 IoCs

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

  • Drops file in Program Files directory 3 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 28 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:312
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:784
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2412
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3536
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:4616
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                1⤵
                  PID:4808
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:4704
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3812
                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                      1⤵
                        PID:3620
                      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3476
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3372
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3172
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:1132
                                • C:\Users\Admin\AppData\Local\Temp\4bb8002ca3b2a87bd5bdcb52b145c5be2b1a1a76e52d079e9956e79eccec342d.exe
                                  "C:\Users\Admin\AppData\Local\Temp\4bb8002ca3b2a87bd5bdcb52b145c5be2b1a1a76e52d079e9956e79eccec342d.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:2248
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:2624
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2460
                                  • C:\Windows\system32\BackgroundTransferHost.exe
                                    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                                    1⤵
                                      PID:2032
                                    • C:\Windows\system32\backgroundTaskHost.exe
                                      "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                      1⤵
                                        PID:2592

                                      Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      • memory/2248-132-0x0000000000400000-0x0000000000416000-memory.dmp
                                        Filesize

                                        88KB

                                      • memory/2248-133-0x00000000022C0000-0x000000000334E000-memory.dmp
                                        Filesize

                                        16.6MB

                                      • memory/2248-134-0x00000000022C0000-0x000000000334E000-memory.dmp
                                        Filesize

                                        16.6MB

                                      • memory/2248-135-0x0000000000400000-0x0000000000416000-memory.dmp
                                        Filesize

                                        88KB