Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 08:51

General

  • Target

    Packed.Win32.Salpack.dll

  • Size

    120KB

  • MD5

    148ff7e65378c5bb2dccf700305467c3

  • SHA1

    0116aa783c1331ca356c32a9444d8b1d91aff586

  • SHA256

    772bc15d59c40acded6aeea0d63e081f3885dad1e3729a1dbd733c90fad8ea31

  • SHA512

    b91cdc9254207bc1e71144d173469bccbf71b8c89502b0a09efc1e461c6e140eadafd4c0d5209c5b106d8f1678c2fe5cde3c223a12cb6ea381e81d83fb99e9d4

  • SSDEEP

    1536:CFkFGprMPDdmWE2277qdwLp81FMIwd9l3PZmQuRlS26zEYQUz19zNAp+C8:CuQp12cqda8sIUlf1U7IEi5kT8

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 3 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 29 IoCs
  • UPX dump on OEP (original entry point) 34 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 29 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 13 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
      PID:316
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:792
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3908
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3848
          • C:\Windows\system32\backgroundTaskHost.exe
            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
            1⤵
              PID:516
            • C:\Windows\system32\backgroundTaskHost.exe
              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
              1⤵
                PID:3868
              • C:\Windows\system32\backgroundTaskHost.exe
                "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                1⤵
                  PID:1028
                • C:\Windows\system32\rundll32.exe
                  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
                  1⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2712
                  • C:\Windows\SysWOW64\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:5040
                    • C:\Users\Admin\AppData\Local\Temp\e5756bb.exe
                      C:\Users\Admin\AppData\Local\Temp\e5756bb.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 Program Files directory
                      • Drops file in Windows directory
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:3244
                    • C:\Users\Admin\AppData\Local\Temp\e5759d8.exe
                      C:\Users\Admin\AppData\Local\Temp\e5759d8.exe
                      3⤵
                      • Executes dropped EXE
                      PID:2496
                    • C:\Users\Admin\AppData\Local\Temp\e5772de.exe
                      C:\Users\Admin\AppData\Local\Temp\e5772de.exe
                      3⤵
                      • Executes dropped EXE
                      PID:4496
                • 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:2428
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:2388
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3452
                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                        1⤵
                          PID:4008
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                          1⤵
                            PID:3752
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                              PID:3560
                            • C:\Windows\Explorer.EXE
                              C:\Windows\Explorer.EXE
                              1⤵
                                PID:3440
                              • C:\Windows\system32\taskhostw.exe
                                taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                1⤵
                                  PID:1068
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                  1⤵
                                    PID:2996
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:2984
                                    • C:\Windows\system32\fontdrvhost.exe
                                      "fontdrvhost.exe"
                                      1⤵
                                        PID:784
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:3932
                                        • C:\Windows\System32\RuntimeBroker.exe
                                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                                          1⤵
                                            PID:3996

                                          Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

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                                                Downloads

                                                • C:\Users\Admin\AppData\Local\Temp\e5756bb.exe

                                                  Filesize

                                                  97KB

                                                  MD5

                                                  e2eb55a2624fc35bac6c58e82cde549b

                                                  SHA1

                                                  0c4bb103bf265522c99a6f5e2e0731ab89b000a0

                                                  SHA256

                                                  1aec34800ace7b5bd83cb9a9c0e7bd1dab931c33e243f324734708606b70c506

                                                  SHA512

                                                  c409001e8e1d3187dfc461f0446f335529dc38ec23fd6f7335ab318929e98ec3c66fe9332ee529abee58888af4856f38dbe043fdd2f5ccb46d8826a35e1759fd

                                                • memory/2496-22-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/2496-105-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/2496-58-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/2496-59-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3244-40-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-64-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-11-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-21-0x00000000019C0000-0x00000000019C1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/3244-24-0x00000000019B0000-0x00000000019B2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3244-9-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-18-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-29-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-5-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/3244-101-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/3244-30-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-31-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-32-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-33-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-34-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-35-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-36-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-37-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-38-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-84-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-49-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-81-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-80-0x00000000019B0000-0x00000000019B2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3244-50-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-52-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-55-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-8-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-6-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-78-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-76-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-74-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-72-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-67-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/3244-70-0x00000000007C0000-0x000000000187A000-memory.dmp

                                                  Filesize

                                                  16.7MB

                                                • memory/4496-63-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/4496-62-0x00000000001E0000-0x00000000001E2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/4496-61-0x00000000001F0000-0x00000000001F1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/4496-48-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/4496-109-0x0000000000400000-0x0000000000412000-memory.dmp

                                                  Filesize

                                                  72KB

                                                • memory/5040-45-0x0000000003D20000-0x0000000003D22000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/5040-13-0x0000000003E50000-0x0000000003E51000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/5040-1-0x0000000010000000-0x0000000010020000-memory.dmp

                                                  Filesize

                                                  128KB

                                                • memory/5040-10-0x0000000003D20000-0x0000000003D22000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/5040-14-0x0000000003D20000-0x0000000003D22000-memory.dmp

                                                  Filesize

                                                  8KB