Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-06-2022 04:33

General

  • Target

    22a2b110e561bb5155cc85793d232ba9750aea25a4a9480a835e1fdd840d251d.exe

  • Size

    112KB

  • MD5

    019d195f5349e3824a4cfae7443da9d9

  • SHA1

    3e3839f4b03dc7e1b1eaa7709bd586b967906471

  • SHA256

    22a2b110e561bb5155cc85793d232ba9750aea25a4a9480a835e1fdd840d251d

  • SHA512

    d8dcfede2b4501723e4c218e0945b9ff36d6f4613b3a62d3180a8e1ef0d19906ce3ae7424dd8d5552cad8d33ca01863f8f8e30e1d29c0a9244f570b7706c2995

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

  • Detect XtremeRAT Payload 3 IoCs
  • 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
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • UPX packed file 6 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
  • 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.

  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:760
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1012
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:768
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2604
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2656
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2792
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3128
                  • C:\Users\Admin\AppData\Local\Temp\22a2b110e561bb5155cc85793d232ba9750aea25a4a9480a835e1fdd840d251d.exe
                    "C:\Users\Admin\AppData\Local\Temp\22a2b110e561bb5155cc85793d232ba9750aea25a4a9480a835e1fdd840d251d.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:2784
                    • C:\Windows\SysWOW64\svchost.exe
                      svchost.exe
                      3⤵
                        PID:1844
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 504
                          4⤵
                          • Program crash
                          PID:4480
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 496
                          4⤵
                          • Program crash
                          PID:4972
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
                        3⤵
                          PID:980
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3232
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3440
                        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                          1⤵
                            PID:3544
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3608
                            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                              1⤵
                                PID:3692
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3960
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 1844 -ip 1844
                                  1⤵
                                    PID:3124
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1844 -ip 1844
                                    1⤵
                                      PID:2724

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • memory/1844-132-0x0000000000000000-mapping.dmp
                                    • memory/1844-135-0x0000000010000000-0x0000000010060000-memory.dmp
                                      Filesize

                                      384KB

                                    • memory/1844-136-0x00000000028F0000-0x000000000397E000-memory.dmp
                                      Filesize

                                      16.6MB

                                    • memory/2784-130-0x0000000010000000-0x0000000010060000-memory.dmp
                                      Filesize

                                      384KB

                                    • memory/2784-131-0x00000000021A0000-0x000000000322E000-memory.dmp
                                      Filesize

                                      16.6MB

                                    • memory/2784-133-0x0000000010000000-0x0000000010060000-memory.dmp
                                      Filesize

                                      384KB

                                    • memory/2784-134-0x00000000021A0000-0x000000000322E000-memory.dmp
                                      Filesize

                                      16.6MB