Analysis

  • max time kernel
    91s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 17:22

General

  • Target

    40307cdd5d1391b1a8f6776d69670f40a75aaa5e5c8698210d3814ede70bec85.exe

  • Size

    156KB

  • MD5

    269bab29dd9df4b292bce37a967d4d98

  • SHA1

    09d35d3486eb5c1a955e355c37b9b996d1b4ee69

  • SHA256

    40307cdd5d1391b1a8f6776d69670f40a75aaa5e5c8698210d3814ede70bec85

  • SHA512

    1e87dcfe30a7150e43d4d2c855ac5bbede3e3de3aba69fff660c428b93b8d84ecdefef135cfe7b757c140eada09c8fe6e29bdcebc101cb543ecf3707018ea036

  • SSDEEP

    3072:Yhg3BjQeCzTmg3LBsL3Koa+iiDBiCks4VHDx1r8pSuModzP/YOgTDfnXmN/7H:dRvCzTmwE3itsqjxruMiHYx3WJ7H

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 2 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:796
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:800
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:2056
          • C:\Users\Admin\AppData\Local\Temp\40307cdd5d1391b1a8f6776d69670f40a75aaa5e5c8698210d3814ede70bec85.exe
            "C:\Users\Admin\AppData\Local\Temp\40307cdd5d1391b1a8f6776d69670f40a75aaa5e5c8698210d3814ede70bec85.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 Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:1608
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:3276
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:1336
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3436
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4696
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3636
                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                    1⤵
                      PID:3536
                    • 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\taskhostw.exe
                        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                        1⤵
                          PID:2468
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                          1⤵
                            PID:2384
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:2372
                            • C:\Windows\system32\dwm.exe
                              "dwm.exe"
                              1⤵
                                PID:376

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

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                              Downloads

                              • memory/1608-133-0x0000000000400000-0x0000000000429000-memory.dmp

                                Filesize

                                164KB

                              • memory/1608-132-0x0000000002360000-0x00000000033EE000-memory.dmp

                                Filesize

                                16.6MB

                              • memory/1608-134-0x0000000000400000-0x0000000000429000-memory.dmp

                                Filesize

                                164KB

                              • memory/1608-135-0x0000000002360000-0x00000000033EE000-memory.dmp

                                Filesize

                                16.6MB