Analysis

  • max time kernel
    117s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 10:57

General

  • Target

    029b7e3eef4e55b781e45c511d40aa6ce0f856fcfacf99b24f2ebd8ef89fed04.exe

  • Size

    493KB

  • MD5

    0a4a84a82a66dabb72140e108c87b196

  • SHA1

    bbb94a53a895444f26599c1157a5087c4c72a457

  • SHA256

    029b7e3eef4e55b781e45c511d40aa6ce0f856fcfacf99b24f2ebd8ef89fed04

  • SHA512

    af1b07ce189ba70e7bc3e2da70d0e41a9240f53e132d8af1a3da862259a95ee8e553c73dfc59161f76f33f56f85cff009a585c6e31a1417b5e0c7b1208411713

  • SSDEEP

    12288:K1Ra1rN4wopVauKAxZkhwryINtTirdorX:KDrp4XAx+hwrywTEdo

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\029b7e3eef4e55b781e45c511d40aa6ce0f856fcfacf99b24f2ebd8ef89fed04.exe
    "C:\Users\Admin\AppData\Local\Temp\029b7e3eef4e55b781e45c511d40aa6ce0f856fcfacf99b24f2ebd8ef89fed04.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1556
  • C:\Windows\EntSver.exe
    C:\Windows\EntSver.exe
    1⤵
    • Executes dropped EXE
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:616
    • C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
      2⤵
        PID:1356

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\EntSver.exe

      Filesize

      493KB

      MD5

      0a4a84a82a66dabb72140e108c87b196

      SHA1

      bbb94a53a895444f26599c1157a5087c4c72a457

      SHA256

      029b7e3eef4e55b781e45c511d40aa6ce0f856fcfacf99b24f2ebd8ef89fed04

      SHA512

      af1b07ce189ba70e7bc3e2da70d0e41a9240f53e132d8af1a3da862259a95ee8e553c73dfc59161f76f33f56f85cff009a585c6e31a1417b5e0c7b1208411713

    • C:\Windows\EntSver.exe

      Filesize

      493KB

      MD5

      0a4a84a82a66dabb72140e108c87b196

      SHA1

      bbb94a53a895444f26599c1157a5087c4c72a457

      SHA256

      029b7e3eef4e55b781e45c511d40aa6ce0f856fcfacf99b24f2ebd8ef89fed04

      SHA512

      af1b07ce189ba70e7bc3e2da70d0e41a9240f53e132d8af1a3da862259a95ee8e553c73dfc59161f76f33f56f85cff009a585c6e31a1417b5e0c7b1208411713

    • memory/616-61-0x0000000000400000-0x00000000004F4000-memory.dmp

      Filesize

      976KB

    • memory/616-62-0x0000000000360000-0x00000000003A3000-memory.dmp

      Filesize

      268KB

    • memory/616-65-0x0000000000400000-0x00000000004F4000-memory.dmp

      Filesize

      976KB

    • memory/616-66-0x0000000000360000-0x00000000003A3000-memory.dmp

      Filesize

      268KB

    • memory/1556-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

      Filesize

      8KB

    • memory/1556-55-0x0000000000400000-0x00000000004F4000-memory.dmp

      Filesize

      976KB

    • memory/1556-56-0x0000000000550000-0x0000000000593000-memory.dmp

      Filesize

      268KB

    • memory/1556-57-0x0000000001E50000-0x0000000001E53000-memory.dmp

      Filesize

      12KB

    • memory/1556-63-0x0000000000400000-0x00000000004F4000-memory.dmp

      Filesize

      976KB

    • memory/1556-64-0x0000000000550000-0x0000000000593000-memory.dmp

      Filesize

      268KB