Analysis

  • max time kernel
    113s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 13:03

General

  • Target

    813fc4a0f58f8d3a7d2bedf49c6bfeb581630d4452fb94dbbb3fb8c792ba4dc7.exe

  • Size

    129KB

  • MD5

    3ebc997486bca1cda946f75e633b4bed

  • SHA1

    742a042100aecac9ccab0eda91b2799429a86c8d

  • SHA256

    813fc4a0f58f8d3a7d2bedf49c6bfeb581630d4452fb94dbbb3fb8c792ba4dc7

  • SHA512

    14629cb55ba78cfb9fd050433c3c407427ca878a737b4fea2147ec260cf9ac332677a8a8154094dc26cba6a5baf4f4a69f8ac7e66a31b3859704ecd2f8bdbc2d

  • SSDEEP

    3072:GA3GUkl88MWluQ/NBB6a1di6GA0KymT66srPI:RWMWlT/NH6gTGAwm26srPI

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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • 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
  • Drops file in Windows directory 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 24 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:2348
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:4472
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:4700
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3736
            • 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: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:3372
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3284
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:2688
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:3032
                          • C:\Users\Admin\AppData\Local\Temp\813fc4a0f58f8d3a7d2bedf49c6bfeb581630d4452fb94dbbb3fb8c792ba4dc7.exe
                            "C:\Users\Admin\AppData\Local\Temp\813fc4a0f58f8d3a7d2bedf49c6bfeb581630d4452fb94dbbb3fb8c792ba4dc7.exe"
                            2⤵
                            • Modifies firewall policy service
                            • UAC bypass
                            • Windows security bypass
                            • Disables RegEdit via registry modification
                            • 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:4932
                            • C:\Windows\SysWOW64\schtasks.exe
                              C:\Windows\system32\schtasks.exe /create /tn "JavaUpdateAdmin" /tr C:\Users\Admin\AppData\Local\Temp\jusched.exe /sc daily
                              3⤵
                              • Creates scheduled task(s)
                              PID:1944
                              • C:\Windows\System32\Conhost.exe
                                \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                                4⤵
                                  PID:3620
                              • C:\Windows\SysWOW64\schtasks.exe
                                C:\Windows\system32\schtasks.exe /run /tn "JavaUpdateAdmin"
                                3⤵
                                  PID:336
                            • C:\Windows\system32\taskhostw.exe
                              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                              1⤵
                                PID:2480
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                1⤵
                                  PID:2392
                                • C:\Windows\system32\fontdrvhost.exe
                                  "fontdrvhost.exe"
                                  1⤵
                                    PID:800
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:792

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • memory/4932-132-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4932-134-0x00000000022C0000-0x000000000334E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/4932-135-0x00000000022C0000-0x000000000334E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/4932-137-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4932-138-0x00000000022C0000-0x000000000334E000-memory.dmp

                                      Filesize

                                      16.6MB