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Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 09:06

General

  • Target

    0a455bf907462fec4cca724d38312457eaadcb3a9743e0353df6a5a6d8f4c298.exe

  • Size

    185KB

  • MD5

    409a7607dbc57625959684c6988b1740

  • SHA1

    f9ebc627e9b56a0675ec5ed7a280374cb4726253

  • SHA256

    0a455bf907462fec4cca724d38312457eaadcb3a9743e0353df6a5a6d8f4c298

  • SHA512

    c4bf4e33bb443b7d12bd4d4e1494b57faf842ba88a72711fbdc79f83bbb496c98ae815824727059c4bbd16ba4bb7700053fe287cf118422d04dd34a3378bb2a3

  • SSDEEP

    3072:MyaY46tGNttyf8AyXmd6I1ORtXHFXetjFr+Z+s1Bu0Az/yEqJhukQ426I1ORtXHy:X46tGdyR4rtXAJFr+Z+6Bu0AqukhtX/L

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

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
  • Drops file in Drivers directory 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:776
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:64
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:780
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2528
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2560
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2812
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:2804
                  • C:\Users\Admin\AppData\Local\Temp\0a455bf907462fec4cca724d38312457eaadcb3a9743e0353df6a5a6d8f4c298.exe
                    "C:\Users\Admin\AppData\Local\Temp\0a455bf907462fec4cca724d38312457eaadcb3a9743e0353df6a5a6d8f4c298.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Drops file in Drivers directory
                    • 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:2736
                    • C:\Windows\SysWOW64\net.exe
                      net stop "Kingsoft AntiVirus Service"
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2072
                      • C:\Windows\System32\Conhost.exe
                        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                        4⤵
                          PID:3224
                        • C:\Windows\SysWOW64\net1.exe
                          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                          4⤵
                            PID:2732
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a6D93.bat
                          3⤵
                          • Checks computer location settings
                          • Suspicious use of SetWindowsHookEx
                          PID:4448
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3092
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3304
                        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                          1⤵
                            PID:3392
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3464
                            • 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\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3808
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:4684
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:4480

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

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                                    Downloads

                                    • C:\Users\Admin\AppData\Local\Temp\$$a6D93.bat

                                      Filesize

                                      722B

                                      MD5

                                      e07188e93eca6c6661ad5deae51fb6f1

                                      SHA1

                                      24cdd3aae2ec7de7687070f6dc9dea8f84df8b1e

                                      SHA256

                                      b209cb0376552fdcaa0c6cb5adcbbf814e3a6e2285b60763853dd7a34542461d

                                      SHA512

                                      ffb9ab53f8da7a85cd41fe5bd1ac743e2bef3b6cbe72f41c75c1b0d48502f41ed3170c94bc5d27b525203d053370911832dde5fb2c9907be5a7767bad0c5c0cf

                                    • C:\Users\Admin\AppData\Local\Temp\0a455bf907462fec4cca724d38312457eaadcb3a9743e0353df6a5a6d8f4c298.exe.exe

                                      Filesize

                                      151KB

                                      MD5

                                      c343538e74573399df63471ffa923492

                                      SHA1

                                      267e88820394865518e68d98a31b6e5c7b17c947

                                      SHA256

                                      e9606e5aea15769acd30486d4acd817f2538638afbc6008c790fba2e05d85c28

                                      SHA512

                                      beb554aaee40fecd4340c030017b114e05f60830a4909bcd410c66a9b0dfd2bc83bc5f0df5df0997e03f72829592ff04bc53c9e23936326828181a9a6d440c65

                                    • memory/2736-134-0x0000000000400000-0x0000000000450000-memory.dmp

                                      Filesize

                                      320KB

                                    • memory/2736-132-0x0000000000850000-0x000000000190A000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/2736-135-0x0000000000850000-0x000000000190A000-memory.dmp

                                      Filesize

                                      16.7MB

                                    • memory/2736-138-0x0000000000400000-0x0000000000450000-memory.dmp

                                      Filesize

                                      320KB

                                    • memory/2736-139-0x0000000000850000-0x000000000190A000-memory.dmp

                                      Filesize

                                      16.7MB