Analysis

  • max time kernel
    162s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-11-2022 11:22

General

  • Target

    abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe

  • Size

    198KB

  • MD5

    409a3e40438397acbb3581c92c9417d2

  • SHA1

    290c4868d2eebe8b49211b37b80eb0986ea7a15b

  • SHA256

    abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08

  • SHA512

    65eb7a61bbc6484b6494ab317edcfe1b21be5df020ca08f46b56c52c3a1fd8844f980379ac57f38be75a6faa7cd3e379d466c291bbef7175ebcc1503ccd12488

  • SSDEEP

    3072:sr85CBimpf0/3Z9HGORc2DpSf75cHcUzNyQ/tb01BZdsEHiYaB7/qm:k9BiEfA3Z9HE1fM1zcQ/tb0rs1vp

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 Neshta payload 1 IoCs
  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • 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
  • Executes dropped EXE 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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 64 IoCs
  • Drops file in Windows directory 2 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:776
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1016
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:784
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2700
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2816
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2868
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:2376
                  • C:\Users\Admin\AppData\Local\Temp\abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe
                    "C:\Users\Admin\AppData\Local\Temp\abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe"
                    2⤵
                    • Modifies system executable filetype association
                    • Checks computer location settings
                    • Drops file in Program Files directory
                    • Drops file in Windows directory
                    • Modifies registry class
                    • Suspicious use of WriteProcessMemory
                    PID:5072
                    • C:\Users\Admin\AppData\Local\Temp\3582-490\abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe
                      "C:\Users\Admin\AppData\Local\Temp\3582-490\abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe"
                      3⤵
                      • Modifies firewall policy service
                      • UAC bypass
                      • Windows security bypass
                      • Disables RegEdit via registry modification
                      • Executes dropped EXE
                      • 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
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:924
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:2936
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3276
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3376
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3444
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3532
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3700

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\ODT\office2016setup.exe

                              Filesize

                              5.1MB

                              MD5

                              02c3d242fe142b0eabec69211b34bc55

                              SHA1

                              ea0a4a6d6078b362f7b3a4ad1505ce49957dc16e

                              SHA256

                              2a1ed24be7e3859b46ec3ebc316789ead5f12055853f86a9656e04b4bb771842

                              SHA512

                              0efb08492eaaa2e923beddc21566e98fbbef3a102f9415ff310ec616f5c84fd2ba3a7025b05e01c0bdf37e5e2f64dfd845f9254a376144cc7d827e7577dbb099

                            • C:\Users\Admin\AppData\Local\Temp\3582-490\abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe

                              Filesize

                              157KB

                              MD5

                              692ec74bba9e20314baa9175356547bc

                              SHA1

                              e46dc0dc2c9881085b1c20879fdc56c229504830

                              SHA256

                              f823e3cc49f166d2c118c7ba4fda10bc195359be17e854fecf0efe9495d559b1

                              SHA512

                              66b3ea23c42fa435dcde39eb42e3576bcd511ec4e1ee4299981b2b1c13c62dbd0078bdc48de7b3e61d7bc4607cee5a11d7b88cb238797e1f73a407b6ff7bb295

                            • C:\Users\Admin\AppData\Local\Temp\3582-490\abdda4b6dca030ff3415e3ca6f1198a641546b343676bbfb3e780ed9afe7bb08.exe

                              Filesize

                              157KB

                              MD5

                              692ec74bba9e20314baa9175356547bc

                              SHA1

                              e46dc0dc2c9881085b1c20879fdc56c229504830

                              SHA256

                              f823e3cc49f166d2c118c7ba4fda10bc195359be17e854fecf0efe9495d559b1

                              SHA512

                              66b3ea23c42fa435dcde39eb42e3576bcd511ec4e1ee4299981b2b1c13c62dbd0078bdc48de7b3e61d7bc4607cee5a11d7b88cb238797e1f73a407b6ff7bb295

                            • memory/924-132-0x0000000000000000-mapping.dmp

                            • memory/924-135-0x0000000002210000-0x000000000329E000-memory.dmp

                              Filesize

                              16.6MB

                            • memory/924-136-0x0000000000400000-0x0000000000420000-memory.dmp

                              Filesize

                              128KB

                            • memory/924-137-0x0000000002210000-0x000000000329E000-memory.dmp

                              Filesize

                              16.6MB

                            • memory/924-138-0x0000000002210000-0x000000000329E000-memory.dmp

                              Filesize

                              16.6MB