Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 16:41

General

  • Target

    cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22.exe

  • Size

    220KB

  • MD5

    63ab24d6c90c1a4cbde78fbff9297c39

  • SHA1

    adde24146f1c60a0e40cf486375777b10d17b175

  • SHA256

    cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22

  • SHA512

    0ad09dfb1baecc102ddf35ce0354622b2ca76568a6feab7ac89791e290d2318f81bf83e5867a1e1b17c401f6ac2f135b442804857c0ce512c329db0e3be51182

  • SSDEEP

    6144:omkI7MAcA0mX38QYOGdv7KWDfVrMfzdr124:omkC0mXslOsvDDifxE4

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 1 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:1016
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3060
        • C:\Users\Admin\AppData\Local\Temp\cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22.exe
          "C:\Users\Admin\AppData\Local\Temp\cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Windows security modification
          • Checks whether UAC is enabled
          • Drops file in Windows directory
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:2732
          • 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⤵
            • Modifies firewall policy service
            • UAC bypass
            • Windows security bypass
            • Executes dropped EXE
            • Loads dropped DLL
            • Windows security modification
            • Checks whether UAC is enabled
            • Enumerates connected drives
            • Drops autorun.inf file
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:792
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3404
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3340
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:4948
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3668
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3484
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                  1⤵
                    PID:3244
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                    1⤵
                      PID:752
                    • C:\Windows\system32\taskhostw.exe
                      taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                      1⤵
                        PID:2420
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                        1⤵
                          PID:2336
                        • C:\Windows\system32\sihost.exe
                          sihost.exe
                          1⤵
                            PID:2304
                          • C:\Windows\system32\fontdrvhost.exe
                            "fontdrvhost.exe"
                            1⤵
                              PID:768
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:760

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Temp\0E56674A_Rar\cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22.exe

                                Filesize

                                148KB

                                MD5

                                e534775d82e130d26ff578c19db3da4e

                                SHA1

                                be4fc4e65e2138a37118a7d2c559cd2ae1221e6c

                                SHA256

                                1b94fbd11f6978a8a210b8ac5a3b033a557ca0aa836cff2710d930464a90fa29

                                SHA512

                                029a0cb2d27838d76976ed2ad401a7ba7381807a72e4e1a60a7adb3462d03ca8a40ada030e7ec41bc02d6aaf95567f22a1e54038eb2c7d9bda45d84a579e371b

                              • C:\Users\Admin\AppData\Local\Temp\nsx68C3.tmp\InstallOptions.dll

                                Filesize

                                15KB

                                MD5

                                67d8f4d5acdb722e9cb7a99570b3ded1

                                SHA1

                                f4a729ba77332325ea4dbdeea98b579f501fd26f

                                SHA256

                                fa8de036b1d9bb06be383a82041966c73473fc8382d041fb5c1758f991afeae7

                                SHA512

                                03999cc26a76b0de6f7e4e8a45137ee4d9c250366ac5a458110f00f7962158311eea5f22d3ee4f32f85aa6969eb143bdb8f03ca989568764ed2bc488c89b4b7f

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

                                Filesize

                                220KB

                                MD5

                                63ab24d6c90c1a4cbde78fbff9297c39

                                SHA1

                                adde24146f1c60a0e40cf486375777b10d17b175

                                SHA256

                                cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22

                                SHA512

                                0ad09dfb1baecc102ddf35ce0354622b2ca76568a6feab7ac89791e290d2318f81bf83e5867a1e1b17c401f6ac2f135b442804857c0ce512c329db0e3be51182

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

                                Filesize

                                220KB

                                MD5

                                63ab24d6c90c1a4cbde78fbff9297c39

                                SHA1

                                adde24146f1c60a0e40cf486375777b10d17b175

                                SHA256

                                cc5724e653e5fbce68f814f85c0500f1fa182658c1a68138ad7395c6ae2b3b22

                                SHA512

                                0ad09dfb1baecc102ddf35ce0354622b2ca76568a6feab7ac89791e290d2318f81bf83e5867a1e1b17c401f6ac2f135b442804857c0ce512c329db0e3be51182

                              • memory/792-142-0x0000000004CD0000-0x0000000005D8A000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/792-145-0x0000000000400000-0x0000000000594000-memory.dmp

                                Filesize

                                1.6MB

                              • memory/792-143-0x0000000004CD0000-0x0000000005D8A000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/792-140-0x0000000000400000-0x0000000000594000-memory.dmp

                                Filesize

                                1.6MB

                              • memory/792-141-0x0000000004CD0000-0x0000000005D8A000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/2732-136-0x0000000000400000-0x0000000000594000-memory.dmp

                                Filesize

                                1.6MB

                              • memory/2732-138-0x0000000000400000-0x0000000000594000-memory.dmp

                                Filesize

                                1.6MB

                              • memory/2732-137-0x0000000002500000-0x00000000035BA000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/2732-132-0x0000000002500000-0x00000000035BA000-memory.dmp

                                Filesize

                                16.7MB