Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2024, 18:38

General

  • Target

    fbd002456b49aa1c9609ad4b515c54b3663ed95cc7663b47ef8bcd9a03f7e85aN.exe

  • Size

    137KB

  • MD5

    b5188b98b7fc66b469e562953a69cd00

  • SHA1

    4a8ad0a8daa964473424b3f0efdb078df17027fd

  • SHA256

    fbd002456b49aa1c9609ad4b515c54b3663ed95cc7663b47ef8bcd9a03f7e85a

  • SHA512

    ae1dc8d867361811d8b5bf0bd016560fc465bc5c37dc6a6903d87f0c608205e2c2881c8515037bd3b68c31ca0529d5830882146c4d563ad54a53ec53fb0a4b91

  • SSDEEP

    3072:GLk39ahYXJYRZGpk3DX3GqmSDOfXJnUHVXjo/BIw3gBX5P/wD:GQTioa3GuDOf9URjo/n3gt5P/S

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.

  • Sality family
  • UAC bypass 3 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • UPX packed file 9 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • NSIS installer 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:764
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:768
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:336
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2984
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:3052
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2512
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3468
                  • C:\Users\Admin\AppData\Local\Temp\fbd002456b49aa1c9609ad4b515c54b3663ed95cc7663b47ef8bcd9a03f7e85aN.exe
                    "C:\Users\Admin\AppData\Local\Temp\fbd002456b49aa1c9609ad4b515c54b3663ed95cc7663b47ef8bcd9a03f7e85aN.exe"
                    2⤵
                    • UAC bypass
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:4264
                    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
                      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
                      3⤵
                      • UAC bypass
                      • Deletes itself
                      • Executes dropped EXE
                      • Loads dropped DLL
                      • Checks whether UAC is enabled
                      • System Location Discovery: System Language Discovery
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:5076
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3588
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3776
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3872
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3940
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4028
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4128
                            • 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:4484
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:844

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\AppData\Local\Temp\0E576DBE_Rar\Au_.exe

                                  Filesize

                                  61KB

                                  MD5

                                  30d13baa7897797258bf2ba014d73af4

                                  SHA1

                                  241d78653f29e2658d200f6fe93db92e5668ea7b

                                  SHA256

                                  34011431303dd36eb624d4fb1385a47b48d9ec389ef61f97c61115be1e9f1a64

                                  SHA512

                                  c179782a031339259a7198168a84a7c68b72bcef6adfc5cb0c5dccf3afca9c34f74e05e910d5f95f902ed3976bc829d78082a82c2c02c2d62c44b1bef9725054

                                • C:\Users\Admin\AppData\Local\Temp\nsf6E2C.tmp\KillProcDLL.dll

                                  Filesize

                                  32KB

                                  MD5

                                  83142eac84475f4ca889c73f10d9c179

                                  SHA1

                                  dbe43c0de8ef881466bd74861b2e5b17598b5ce8

                                  SHA256

                                  ae2f1658656e554f37e6eac896475a3862841a18ffc6fad2754e2d3525770729

                                  SHA512

                                  1c66eab21f0c9e0b99ecc3844516a6978f52e0c7f489405a427532ecbe78947c37dac5b4c8b722cc8bc1edfb74ba4824519d56099e587e754e5c668701e83bd1

                                • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

                                  Filesize

                                  137KB

                                  MD5

                                  b5188b98b7fc66b469e562953a69cd00

                                  SHA1

                                  4a8ad0a8daa964473424b3f0efdb078df17027fd

                                  SHA256

                                  fbd002456b49aa1c9609ad4b515c54b3663ed95cc7663b47ef8bcd9a03f7e85a

                                  SHA512

                                  ae1dc8d867361811d8b5bf0bd016560fc465bc5c37dc6a6903d87f0c608205e2c2881c8515037bd3b68c31ca0529d5830882146c4d563ad54a53ec53fb0a4b91

                                • C:\Windows\SYSTEM.INI

                                  Filesize

                                  258B

                                  MD5

                                  5d2f00ed7af971ed38f43452676a1312

                                  SHA1

                                  751837ba1caba3c24fa45e0dd486a1045f9b84ff

                                  SHA256

                                  083b8f7236473e2bf38944c2e7b4203e9ac892db2bde4a98c1af8472eb462b14

                                  SHA512

                                  67a4b3faeda0a70849282b68cf251fd286f81b46b99a0681de18cf5ad3e37d14d946afebad8dd1fef71f4004eb709a964bddf83b6d682b4dbd6018b1046f6876

                                • memory/4264-14-0x00000000021B0000-0x00000000021B2000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/4264-5-0x0000000002370000-0x00000000033A0000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/4264-0-0x0000000000400000-0x0000000000453000-memory.dmp

                                  Filesize

                                  332KB

                                • memory/4264-9-0x00000000021B0000-0x00000000021B2000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/4264-10-0x0000000002330000-0x0000000002331000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/4264-28-0x0000000002370000-0x00000000033A0000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/4264-34-0x0000000000400000-0x0000000000453000-memory.dmp

                                  Filesize

                                  332KB

                                • memory/4264-24-0x00000000021B0000-0x00000000021B2000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/4264-1-0x0000000002370000-0x00000000033A0000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/4264-11-0x00000000021B0000-0x00000000021B2000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/4264-4-0x0000000002370000-0x00000000033A0000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/5076-46-0x00000000069E0000-0x0000000007A10000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/5076-55-0x0000000008190000-0x0000000008192000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/5076-58-0x0000000008190000-0x0000000008192000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/5076-57-0x00000000069E0000-0x0000000007A10000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/5076-54-0x00000000082E0000-0x00000000082E1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/5076-47-0x00000000069E0000-0x0000000007A10000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/5076-59-0x00000000069E0000-0x0000000007A10000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/5076-67-0x00000000069E0000-0x0000000007A10000-memory.dmp

                                  Filesize

                                  16.2MB

                                • memory/5076-89-0x0000000000400000-0x0000000000453000-memory.dmp

                                  Filesize

                                  332KB