Analysis

  • max time kernel
    121s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-06-2022 18:23

General

  • Target

    25aaeb30fb9b9eb36b042d44680a61b0513baf2a07021d3e04b73c2d0b5a4890.exe

  • Size

    91KB

  • MD5

    7dca89832ca5171e407cb35337bd3f0f

  • SHA1

    b4b86b2a78d915d21f160f70809dc20fcbec7af0

  • SHA256

    25aaeb30fb9b9eb36b042d44680a61b0513baf2a07021d3e04b73c2d0b5a4890

  • SHA512

    9764f38abe919a1f82b3fb576283ce6ad2b003d912c94b8f709187344b2cecc099a8fa28763bf058de49bbed07cb20abafede8e857b6ae50bd8036fea64d9c55

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

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

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
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 3 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 5 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:808
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:312
      • C:\Windows\system32\fontdrvhost.exe
        "fontdrvhost.exe"
        1⤵
          PID:816
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2708
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2812
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2924
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:2952
                  • C:\Users\Admin\AppData\Local\Temp\25aaeb30fb9b9eb36b042d44680a61b0513baf2a07021d3e04b73c2d0b5a4890.exe
                    "C:\Users\Admin\AppData\Local\Temp\25aaeb30fb9b9eb36b042d44680a61b0513baf2a07021d3e04b73c2d0b5a4890.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Enumerates connected drives
                    • Maps connected drives based on registry
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious behavior: MapViewOfSection
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:3244
                    • C:\Windows\SysWOW64\svchost.exe
                      svchost.exe
                      3⤵
                      • Adds policy Run key to start application
                      PID:3992
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3212
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3400
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3488
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3556
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:3640
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3872

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

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                            Downloads

                            • memory/3244-130-0x0000000000870000-0x00000000018FE000-memory.dmp
                              Filesize

                              16.6MB

                            • memory/3244-131-0x0000000000400000-0x0000000000418000-memory.dmp
                              Filesize

                              96KB

                            • memory/3244-132-0x0000000000870000-0x00000000018FE000-memory.dmp
                              Filesize

                              16.6MB

                            • memory/3244-134-0x0000000000400000-0x0000000000418000-memory.dmp
                              Filesize

                              96KB

                            • memory/3244-135-0x0000000000870000-0x00000000018FE000-memory.dmp
                              Filesize

                              16.6MB

                            • memory/3992-133-0x0000000000000000-mapping.dmp
                            • memory/3992-136-0x00000000004C0000-0x00000000004CE000-memory.dmp
                              Filesize

                              56KB

                            • memory/3992-137-0x00000000003E0000-0x00000000003E4000-memory.dmp
                              Filesize

                              16KB

                            • memory/3992-138-0x00000000005E0000-0x00000000005EC000-memory.dmp
                              Filesize

                              48KB

                            • memory/3992-139-0x00000000005E0000-0x00000000005EC000-memory.dmp
                              Filesize

                              48KB