Analysis

  • max time kernel
    136s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2023 13:13

General

  • Target

    NEAS.3fbd7d4a57a164798b4857d39330d940_JC.dll

  • Size

    120KB

  • MD5

    3fbd7d4a57a164798b4857d39330d940

  • SHA1

    6f93225454af95ea94f33f197e101e93073753dd

  • SHA256

    29ac6dc66bd7d3ff4f449a80662bb2547c793b67277ae69e6f51289ef3d6476d

  • SHA512

    1939c359e443ba2bc372da354e6e4371552507e184c629504d728be95b404706d50e6322dd02f2cad32bd0aafb0f96128b73d761fac377c3c1de38fda5311aba

  • SSDEEP

    3072:kjkQQ4OKihJ0im5wj1WkoJwtiVEkRqDT:kjNpXimuj1WkzwFAX

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

  • Modifies firewall policy service 2 TTPs 6 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 23 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 6 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:792
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:392
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2540
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
            PID:3868
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:3776
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
              1⤵
                PID:4156
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                1⤵
                  PID:4356
                • 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:752
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.3fbd7d4a57a164798b4857d39330d940_JC.dll,#1
                    1⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3448
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.3fbd7d4a57a164798b4857d39330d940_JC.dll,#1
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4216
                      • C:\Users\Admin\AppData\Local\Temp\e57db8b.exe
                        C:\Users\Admin\AppData\Local\Temp\e57db8b.exe
                        3⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:4672
                      • C:\Users\Admin\AppData\Local\Temp\e57e0ea.exe
                        C:\Users\Admin\AppData\Local\Temp\e57e0ea.exe
                        3⤵
                        • Executes dropped EXE
                        PID:1172
                      • C:\Users\Admin\AppData\Local\Temp\e57fc90.exe
                        C:\Users\Admin\AppData\Local\Temp\e57fc90.exe
                        3⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:2204
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4996
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3272
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:3980
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3668
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3408
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3224
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                1⤵
                                  PID:2348
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:2332
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:796
                                    • C:\Windows\system32\BackgroundTaskHost.exe
                                      "C:\Windows\system32\BackgroundTaskHost.exe" -ServerName:BackgroundTaskHost.WebAccountProvider
                                      1⤵
                                        PID:772
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:4600
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:1256

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Temp\e57db8b.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Users\Admin\AppData\Local\Temp\e57db8b.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Users\Admin\AppData\Local\Temp\e57e0ea.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Users\Admin\AppData\Local\Temp\e57e0ea.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Users\Admin\AppData\Local\Temp\e57fc90.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Users\Admin\AppData\Local\Temp\e57fc90.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Users\Admin\AppData\Local\Temp\e57fc90.exe

                                            Filesize

                                            97KB

                                            MD5

                                            793d8ea692e2cad142347768649a6ffc

                                            SHA1

                                            1298079032fdf2798957ff02f4ce997bde6ba551

                                            SHA256

                                            0d1176608469c57f906195f093c645df08dac2a56b36a38a24fc767c710e65e7

                                            SHA512

                                            094d1fcc4a890ecfeaf418be3f6e00b5a3b3e9d3ddf136eadb23af61be9e599d7a79bdb786839db37908bbcc028438f95dea243607324c4ba04b4c43dde1b18a

                                          • C:\Windows\SYSTEM.INI

                                            Filesize

                                            257B

                                            MD5

                                            9f5e1d5db0f153196ccb8494af7d773c

                                            SHA1

                                            e613566fec785a84edf96f33be7c535cecd7a7f5

                                            SHA256

                                            b2999ac694835fb4382ef7e43738342149b9817682646a1a50528611bba7e82f

                                            SHA512

                                            5c57a1d0535e74d2b666a082507be5de559dcc4b80b8e6a756fd50947f55adf0c6e80060e0374665f2a84adfcb161ebbac0f3eecda585e2cb11a7e48663b82e9

                                          • memory/1172-51-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/1172-71-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/1172-96-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/1172-49-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1172-20-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/2204-56-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/2204-100-0x0000000000B20000-0x0000000001BDA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/2204-97-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/2204-53-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/2204-54-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/2204-102-0x0000000000B20000-0x0000000001BDA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/2204-140-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/2204-141-0x0000000000B20000-0x0000000001BDA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4216-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4216-11-0x0000000004220000-0x0000000004222000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4216-13-0x0000000004220000-0x0000000004222000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4216-14-0x0000000004900000-0x0000000004901000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4216-41-0x0000000004220000-0x0000000004222000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4672-23-0x00000000005F0000-0x00000000005F2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4672-37-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-45-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-46-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-36-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-35-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-55-0x00000000005F0000-0x00000000005F2000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/4672-34-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-33-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-32-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-57-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-58-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-59-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-63-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-69-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-30-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-72-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-24-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-21-0x0000000000600000-0x0000000000601000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/4672-98-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/4672-12-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-10-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-9-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-7-0x0000000000810000-0x00000000018CA000-memory.dmp

                                            Filesize

                                            16.7MB

                                          • memory/4672-4-0x0000000000400000-0x0000000000412000-memory.dmp

                                            Filesize

                                            72KB