Analysis

  • max time kernel
    132s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 11:39

General

  • Target

    afe01e926b132de3bc55b5b7ec2f1833a5abedb756ed302d3bf1f03f7f407787.exe

  • Size

    421KB

  • MD5

    96966255b1b162959fafedebd3e676a0

  • SHA1

    eae2dbaeab233a2d0665e75502a09701d583cf3c

  • SHA256

    afe01e926b132de3bc55b5b7ec2f1833a5abedb756ed302d3bf1f03f7f407787

  • SHA512

    1235a0f3c8c361b8cf1b64f0d5e34793c9bf2a39e6a9c105b8c6df9fbc375e0a33227c0f3a8e02edf32bee009bcc26b3a77a1ab8c9de1f26b84b5cdd14e1fda4

  • SSDEEP

    6144:FWb6GdYJGY1CLKd6Gr5AZH8XL7k19X0eTLE9AIHR1y9X93ae7mNhTy:FWbvhLq6ywH8X3k1lia1IZy

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 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 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:60
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:768
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3460
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3396
            • 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:3088
                • C:\Windows\Explorer.EXE
                  C:\Windows\Explorer.EXE
                  1⤵
                    PID:744
                    • C:\Users\Admin\AppData\Local\Temp\afe01e926b132de3bc55b5b7ec2f1833a5abedb756ed302d3bf1f03f7f407787.exe
                      "C:\Users\Admin\AppData\Local\Temp\afe01e926b132de3bc55b5b7ec2f1833a5abedb756ed302d3bf1f03f7f407787.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:4820
                      • 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⤵
                        • Suspicious use of SetWindowsHookEx
                        PID:4400
                  • C:\Windows\system32\taskhostw.exe
                    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                    1⤵
                      PID:2972
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                      1⤵
                        PID:2868
                      • C:\Windows\system32\sihost.exe
                        sihost.exe
                        1⤵
                          PID:2848
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:4764
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:716
                            • C:\Windows\system32\backgroundTaskHost.exe
                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                              1⤵
                                PID:4444
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3768
                                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                  1⤵
                                    PID:3548

                                  Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

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                                        Downloads

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

                                          Filesize

                                          358B

                                          MD5

                                          ee4d43789d5b3c3abb21d8e32bd82010

                                          SHA1

                                          c6073bb4677a4b5f3d38b28a2506426e8386713d

                                          SHA256

                                          408cae2c90fa2fbf3ddf602df198dba55fbb7c25e513f1b60f746ffe3b867b43

                                          SHA512

                                          9462e0be905de32e48d03d444625c456199940f2acbcf97a90b251812c3099a9af63b559ce8c6cc4c7770618b42c03c9c9ff82f4606d6408950de4d1e73dc287

                                        • memory/4820-132-0x0000000000910000-0x000000000097E000-memory.dmp

                                          Filesize

                                          440KB

                                        • memory/4820-133-0x00000000032F0000-0x000000000437E000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/4820-134-0x00000000032F0000-0x000000000437E000-memory.dmp

                                          Filesize

                                          16.6MB

                                        • memory/4820-136-0x0000000000910000-0x000000000097E000-memory.dmp

                                          Filesize

                                          440KB