Analysis

  • max time kernel
    75s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2022, 19:38

General

  • Target

    362b2faba4d4a49b94d0616464512aa46284d1304224e10569a72f6d2975a465.exe

  • Size

    406KB

  • MD5

    0c2108ea7ab11435814ac85a31bbb840

  • SHA1

    3fe24fdb348c62e93e85f8c22dbdca20e4f27b12

  • SHA256

    362b2faba4d4a49b94d0616464512aa46284d1304224e10569a72f6d2975a465

  • SHA512

    787dcf792acd787e9ab1a00dd7815a23ecaf3483f7f71205b4e28f79e5d27bd335f727cc052d6554943446453904d82c4ff663655e3bd64b4fc818f5b6ad1b78

  • SSDEEP

    6144:L2EGyyn8t8qgCJsuIrELgoNPrpO7LIyPLldmbvuXMjR1y9lZpOaZU+gsOLs:LYqgNuIrEkoNk7L6zSZpORTs

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/

http://klkjwre77638dfqwieuoi888.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 2 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 Program Files directory 2 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:780
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1016
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:788
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2336
          • C:\Windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
              PID:2608
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3524
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:4852
                • C:\Windows\system32\backgroundTaskHost.exe
                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                  1⤵
                    PID:2012
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3888
                    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                      1⤵
                        PID:3608
                      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3444
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3292
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3096
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:2724
                                • C:\Users\Admin\AppData\Local\Temp\362b2faba4d4a49b94d0616464512aa46284d1304224e10569a72f6d2975a465.exe
                                  "C:\Users\Admin\AppData\Local\Temp\362b2faba4d4a49b94d0616464512aa46284d1304224e10569a72f6d2975a465.exe"
                                  2⤵
                                  • Modifies firewall policy service
                                  • UAC bypass
                                  • Windows security bypass
                                  • Disables RegEdit via registry modification
                                  • Checks computer location settings
                                  • 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:2556
                                  • C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
                                    "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
                                    3⤵
                                    • Drops file in Program Files directory
                                    • Suspicious use of SetWindowsHookEx
                                    • Suspicious use of WriteProcessMemory
                                    PID:2240
                                    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe
                                      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"
                                      4⤵
                                        PID:4660
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2376
                                  • C:\Windows\System32\RuntimeBroker.exe
                                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                                    1⤵
                                      PID:2128

                                    Network

                                    MITRE ATT&CK Enterprise v6

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • C:\Users\Admin\AppData\Local\Temp\AdobeARM.log

                                      Filesize

                                      358B

                                      MD5

                                      35030e8b3a29acc1ed66c81d59819687

                                      SHA1

                                      2e434c8e0e1c2e1a5874800b811167e65eb13f99

                                      SHA256

                                      bb2ec14e754d04ae05468b356a7b2670814b86888343c7bbe0942afd872a6d64

                                      SHA512

                                      5a2bb6472dce7f037ef3239746dc27a18304000738108559d2322ebeee0289fdc20cb44e391dfd5561adb9300a7dea9769181983503f13b69420ac056ba7fee7

                                    • memory/2556-132-0x0000000000980000-0x00000000009EA000-memory.dmp

                                      Filesize

                                      424KB

                                    • memory/2556-133-0x0000000002EB0000-0x0000000003F3E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/2556-135-0x0000000002EB0000-0x0000000003F3E000-memory.dmp

                                      Filesize

                                      16.6MB

                                    • memory/2556-136-0x0000000000980000-0x00000000009EA000-memory.dmp

                                      Filesize

                                      424KB