Analysis

  • max time kernel
    24s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 22:38

General

  • Target

    581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N.exe

  • Size

    1020KB

  • MD5

    f1153df2b31f0fb3b39f0d91f085e620

  • SHA1

    7bee8c6d064d1437cef446bba061519b2f1c92d1

  • SHA256

    581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5

  • SHA512

    0be6e1e7dd0af76b5be42fb96c993fdd577cd46192204972b1840fa9c0814338b37c54a73e0a24d97466dc121644cf479f3a5334362610afa1131dbcbe96d4bd

  • SSDEEP

    24576:HMWKyCGE3LRCzMeHhxSacpSqr70ftGi7t4T4LcaCrHPIXhEc+3:HvGRoUpfqj20L6HPIXhEcw

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

  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Disables Task Manager via registry modification
  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NTFS ADS 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:760
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:768
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:60
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2564
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2588
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2788
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3524
                  • C:\Users\Admin\AppData\Local\Temp\581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N.exe
                    "C:\Users\Admin\AppData\Local\Temp\581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N.exe"
                    2⤵
                    • UAC bypass
                    • Windows security bypass
                    • Disables RegEdit via registry modification
                    • Checks computer location settings
                    • Windows security modification
                    • Adds Run key to start application
                    • Checks whether UAC is enabled
                    • Drops file in Program Files directory
                    • Drops file in Windows directory
                    • System Location Discovery: System Language Discovery
                    • NTFS ADS
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:4104
                    • C:\Windows\SysWOW64\netsh.exe
                      netsh firewall set opmode disable
                      3⤵
                      • Modifies Windows Firewall
                      • Event Triggered Execution: Netsh Helper DLL
                      • System Location Discovery: System Language Discovery
                      PID:1116
                    • C:\Users\Admin\AppData\Local\Temp\581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N .exe
                      "C:\Users\Admin\AppData\Local\Temp\581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N .exe"
                      3⤵
                      • UAC bypass
                      • Windows security bypass
                      • Disables RegEdit via registry modification
                      • Deletes itself
                      • Executes dropped EXE
                      • Windows security modification
                      • Checks whether UAC is enabled
                      • Drops file in Program Files directory
                      • System Location Discovery: System Language Discovery
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:2556
                      • C:\Windows\SysWOW64\netsh.exe
                        netsh firewall set opmode disable
                        4⤵
                        • Modifies Windows Firewall
                        • Event Triggered Execution: Netsh Helper DLL
                        • System Location Discovery: System Language Discovery
                        PID:4676
                      • C:\Windows\SysWOW64\NOTEPAD.EXE
                        "C:\Windows\system32\NOTEPAD.EXE"
                        4⤵
                          PID:1352
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                    1⤵
                      PID:3672
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      1⤵
                        PID:3848
                      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                        1⤵
                          PID:3940
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:4004
                          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                            1⤵
                              PID:4088
                            • C:\Windows\System32\RuntimeBroker.exe
                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                              1⤵
                                PID:3700
                              • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                                "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                                1⤵
                                  PID:2688
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:3220

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Temp\0E579C5F_Rar\581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N.exe

                                    Filesize

                                    948KB

                                    MD5

                                    a62f4161fc58519789168c49a3a06881

                                    SHA1

                                    bb30c49aa8b56a4a9e0df96fafe21f91cbd24b52

                                    SHA256

                                    752af753b84910f8c8853703906d8bdcd252760571645e1d5c6867c9c9d1fc7d

                                    SHA512

                                    61f56aeb8ffb932ed7eb5912c4e4817b523bd19cc420ea7cdc2709baebf474059afc6a9cd0a5df1c1da06e3c8cf09cd944d4ea7efeb54e6c4c8394bc9c022025

                                  • C:\Users\Admin\AppData\Local\Temp\581f0b4888d607698b78abd6359f6862fc189228973bb32a5cabd354f33a89c5N .exe

                                    Filesize

                                    912KB

                                    MD5

                                    cf3064582255132aaf515df006867a50

                                    SHA1

                                    2d57ade3f97bcb5bfd309b32929f343ccd08a0af

                                    SHA256

                                    943c14b66c6330c29eddc4cf40d54a333be4fb4e6b21e1555bf91bd72d9b0893

                                    SHA512

                                    0a82f0a613a08491b0c023b0e86ef1b1dc70c057d74274606c7e27b1682480e831f6c5ae93e4433bdb05a01447c95851ccc72a72163c1dc757e138478d10a39a

                                  • C:\WINDOWS\MC42.EXE

                                    Filesize

                                    112KB

                                    MD5

                                    528132323bbdc6b900b403cf5ed72e35

                                    SHA1

                                    e26bdbfe07436909473db2e26aa06adf4a9e42c6

                                    SHA256

                                    37ccadd739dfe523825c40085a69b3c5f9fe42ac7bf82c5242ab02d4a93e313c

                                    SHA512

                                    3a285328839ff6a394017af11681e6e8fc6e0c543a4fbc495df5c11514c602db090c03ef60c6417d63755d3fc151b2929b4cf88c30cf85f4e02b20a5cc44b0d4

                                  • C:\Windows\SYSTEM.INI

                                    Filesize

                                    258B

                                    MD5

                                    588526b5faea64f9bc6d6f0ae51a9d85

                                    SHA1

                                    fe3f2cfc8ecc0d056a2613a4d5f6a9e8f6d4af88

                                    SHA256

                                    b16f043c3bedc4de42cad75d88322d0d40bb37731add15d6689a22c52aed4bcb

                                    SHA512

                                    2758ae58b5ae179a705b10cf51b3b810901e3e118357406092e5bb41eaf0fb310152ca23e2541f4142777a4ee86ccef6f3afb5ddf7d065cf08821741d1720245

                                  • memory/2556-96-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-91-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-77-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-76-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-73-0x0000000004410000-0x0000000004412000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/2556-100-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-31-0x0000000000400000-0x00000000007EB000-memory.dmp

                                    Filesize

                                    3.9MB

                                  • memory/2556-67-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-64-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/2556-72-0x000000000F8F0000-0x000000000F8F1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2556-136-0x0000000000400000-0x00000000007EB000-memory.dmp

                                    Filesize

                                    3.9MB

                                  • memory/2556-74-0x000000000A5F0000-0x000000000B623000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/4104-12-0x0000000002240000-0x0000000002241000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4104-61-0x0000000000400000-0x000000000041D000-memory.dmp

                                    Filesize

                                    116KB

                                  • memory/4104-51-0x0000000002370000-0x00000000033A3000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/4104-32-0x0000000002370000-0x00000000033A3000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/4104-11-0x0000000002230000-0x0000000002232000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/4104-0-0x0000000000400000-0x000000000041D000-memory.dmp

                                    Filesize

                                    116KB

                                  • memory/4104-4-0x0000000002370000-0x00000000033A3000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/4104-13-0x0000000002370000-0x00000000033A3000-memory.dmp

                                    Filesize

                                    16.2MB

                                  • memory/4104-17-0x0000000002230000-0x0000000002232000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/4104-15-0x0000000002230000-0x0000000002232000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/4104-1-0x0000000002370000-0x00000000033A3000-memory.dmp

                                    Filesize

                                    16.2MB