Analysis

  • max time kernel
    116s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2024 12:00

General

  • Target

    c1f4b4026ca70d36f74bd1af256aaec0N.dll

  • Size

    120KB

  • MD5

    c1f4b4026ca70d36f74bd1af256aaec0

  • SHA1

    7c0c8541cf96ceb51fddf55f78138aef254916c0

  • SHA256

    d88784f782338adfd393532f64f18af41d763984487a824d771fe70e35e27b74

  • SHA512

    b056337cfe31db9ea9798774aa1625cb8c99c5336851ff4927a58c87c3c73e1a99964ae6954ae8982d6beb093852c4c81dc246099add5fbebc391c55fc891137

  • SSDEEP

    3072:r8Ksoef/401GfWvG/K9Cz52hwmu4r/17xOIvs0GwqQmWq:r8Ks/X401rvYqoK1rxcmZZqGq

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 3 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 4 IoCs
  • UPX packed file 30 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 11 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • 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:780
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:784
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:316
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2620
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2636
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2776
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3388
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1f4b4026ca70d36f74bd1af256aaec0N.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3876
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1f4b4026ca70d36f74bd1af256aaec0N.dll,#1
                      3⤵
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of WriteProcessMemory
                      PID:1272
                      • C:\Users\Admin\AppData\Local\Temp\e576b1e.exe
                        C:\Users\Admin\AppData\Local\Temp\e576b1e.exe
                        4⤵
                        • 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 Program Files directory
                        • 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:3352
                      • C:\Users\Admin\AppData\Local\Temp\e576d21.exe
                        C:\Users\Admin\AppData\Local\Temp\e576d21.exe
                        4⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Drops file in Windows directory
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:4924
                      • C:\Users\Admin\AppData\Local\Temp\e578e36.exe
                        C:\Users\Admin\AppData\Local\Temp\e578e36.exe
                        4⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:396
                      • C:\Users\Admin\AppData\Local\Temp\e578e55.exe
                        C:\Users\Admin\AppData\Local\Temp\e578e55.exe
                        4⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:3228
                • 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:3780
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3868
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3928
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4016
                          • 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:4820
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:2300
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:2416
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:4200
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:2296
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:3008

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\e576b1e.exe

                                          Filesize

                                          97KB

                                          MD5

                                          f2133d737039a0b494fcaf33bb522382

                                          SHA1

                                          f904eace537be224ad6ff37d1527d418942e06cd

                                          SHA256

                                          20c011ff4de47c6a74525df980b848ade59573ca0cef43c908454cc8f8b1340f

                                          SHA512

                                          25ba0864df04a6fbe7a1a91a8fd19602909eab7cecb8c4d993e26a503f45c4fb5f1fce99b4966fcc5fef8f8eef290b8db4b009b4c28ca62250c59498d81dbc33

                                        • C:\Windows\SYSTEM.INI

                                          Filesize

                                          257B

                                          MD5

                                          794162b3875e5694abd986f8b0f12959

                                          SHA1

                                          d8b0da41384c5dc0f9a120a5d34576632ffe33ae

                                          SHA256

                                          e5dbb588c4340e3bca0dddbb96f287a7c22e3026ec75b7ebb8e3edfa452fbfee

                                          SHA512

                                          6035cfca2f8306b0525d128658f6f30f055d7bad7a0db3724dd51bd165b96db077e1522b141a383ec5731f152b85c72f1a50624923d89f49d16a7d416ebd9a97

                                        • memory/396-67-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/396-95-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/396-69-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/396-64-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/396-155-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/396-48-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/1272-29-0x0000000000B30000-0x0000000000B32000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1272-24-0x0000000000B80000-0x0000000000B81000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/1272-23-0x0000000000B30000-0x0000000000B32000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1272-31-0x0000000000B30000-0x0000000000B32000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/1272-0-0x0000000010000000-0x0000000010020000-memory.dmp

                                          Filesize

                                          128KB

                                        • memory/3228-68-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3228-56-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3228-96-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3228-70-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3228-66-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3228-156-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3352-12-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-16-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-37-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-38-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-39-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-40-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-42-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-32-0x0000000003650000-0x0000000003652000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3352-17-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-55-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-58-0x0000000003650000-0x0000000003652000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3352-30-0x0000000003650000-0x0000000003652000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3352-10-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-26-0x0000000004360000-0x0000000004361000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3352-13-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-15-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-11-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-36-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-8-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-100-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-9-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-72-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-73-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-74-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-76-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-79-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-80-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-83-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-84-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-105-0x0000000003650000-0x0000000003652000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/3352-93-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-14-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-4-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/3352-98-0x0000000000870000-0x000000000192A000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/3352-117-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/4924-35-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/4924-85-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/4924-62-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/4924-134-0x0000000000B30000-0x0000000001BEA000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/4924-147-0x0000000000B30000-0x0000000001BEA000-memory.dmp

                                          Filesize

                                          16.7MB

                                        • memory/4924-148-0x0000000000400000-0x0000000000412000-memory.dmp

                                          Filesize

                                          72KB

                                        • memory/4924-61-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                          Filesize

                                          8KB

                                        • memory/4924-60-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                          Filesize

                                          4KB