Resubmissions

16-02-2024 13:22

240216-ql7mxsbg58 6

01-12-2022 12:54

221201-p47vzadd6v 7

Analysis

  • max time kernel
    33s
  • max time network
    50s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2022 12:54

General

  • Target

    SYSTEM.Critical.Upgrade.Win10.0.14129a18398ef3d.msi

  • Size

    2.7MB

  • MD5

    c4b90f7b86d6a1656f0d40d3cbae8aec

  • SHA1

    893368a6b1f00b5665ba0a403042ca955842246a

  • SHA256

    8d8c15da905c23fb964b0d77e18ba404a59222f08c8eb992e5092b735a66bf5e

  • SHA512

    06ed7a65f9009e529438996184984d4d5d0689878eff8ba5e7be2e58bb6a1657ef06ca7e1e803a3773a67e3c4201ee9a7c48727626b91a91f2a2ccf813799da8

  • SSDEEP

    3072:NOiggXYJ4SsWzlV3lXHXNX9XXXDC/9MvuMz7/822I:N8gXPr/9Mv5z7/822

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
    1⤵
      PID:2824
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2752
      • C:\Windows\system32\msiexec.exe
        msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\SYSTEM.Critical.Upgrade.Win10.0.14129a18398ef3d.msi
        1⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4440
      • C:\Windows\system32\msiexec.exe
        C:\Windows\system32\msiexec.exe /V
        1⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4988
        • C:\Windows\System32\MsiExec.exe
          C:\Windows\System32\MsiExec.exe -Embedding 86833C28843E601D54E18057F84E06DD C
          2⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2748

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\MSIA60.tmp

        Filesize

        84KB

        MD5

        0345408e69f9976c645c0df33b36f708

        SHA1

        82d6140eb4b09ed215e564d86e6a47c0e26a065d

        SHA256

        9bb14d25e7bcae1d8249bd94d365f2c2b05896c94925d82f65cbc595ca8d6616

        SHA512

        de04cb10b6c1905d6584797467878569613608e99308749c2cad40901ae11b6e82eaee82ff907631bc89ba5bd09fd9f337071e5685b1c2b1a693d39e78ed679b

      • C:\Users\Admin\AppData\Local\Temp\MSIA60.tmp

        Filesize

        84KB

        MD5

        0345408e69f9976c645c0df33b36f708

        SHA1

        82d6140eb4b09ed215e564d86e6a47c0e26a065d

        SHA256

        9bb14d25e7bcae1d8249bd94d365f2c2b05896c94925d82f65cbc595ca8d6616

        SHA512

        de04cb10b6c1905d6584797467878569613608e99308749c2cad40901ae11b6e82eaee82ff907631bc89ba5bd09fd9f337071e5685b1c2b1a693d39e78ed679b

      • memory/2748-132-0x0000000000000000-mapping.dmp

      • memory/2748-135-0x0000000180000000-0x0000000180018000-memory.dmp

        Filesize

        96KB

      • memory/2748-136-0x0000020C7BE60000-0x0000020C7BE74000-memory.dmp

        Filesize

        80KB

      • memory/2752-137-0x000002D371CE0000-0x000002D371CF3000-memory.dmp

        Filesize

        76KB