Analysis

  • max time kernel
    94s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/09/2024, 17:28

General

  • Target

    b6e95e50e00c0a863ff11d9b409e4c31f41191c1dc8890d2ebbb7cf0fc7e9fd4.exe

  • Size

    4.8MB

  • MD5

    75104ea6da35e6fcc41c33e0f16aed9d

  • SHA1

    40e1db57074e3e6eef1fbed02d9f2dcd406fba6a

  • SHA256

    b6e95e50e00c0a863ff11d9b409e4c31f41191c1dc8890d2ebbb7cf0fc7e9fd4

  • SHA512

    3af0b1bb6d01b5f929b5707724d3d6ee66c23b349bcba81ff7fdd6372acbb89426b3886ee1de438ceb35662e6e2f0a1cf1236c993cbff22152797dfc5bd282b6

  • SSDEEP

    98304:cVeM4VwHuokyfK8PGcx2HynIiprw0F80XZeGS:6AVw6kx2SnIe84eGS

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6e95e50e00c0a863ff11d9b409e4c31f41191c1dc8890d2ebbb7cf0fc7e9fd4.exe
    "C:\Users\Admin\AppData\Local\Temp\b6e95e50e00c0a863ff11d9b409e4c31f41191c1dc8890d2ebbb7cf0fc7e9fd4.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    PID:2560
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 2068
      2⤵
      • Program crash
      PID:828
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2560 -ip 2560
    1⤵
      PID:1096

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\lds_setup.log

      Filesize

      1KB

      MD5

      df51e51f00f45e2050269df63ad55cb1

      SHA1

      210a71b630a93fdebe43acda32a87041367ddf66

      SHA256

      186c3beffd3945fd7d7931e3249fb5fadd4c6df31f540dacd2374427dc6febcc

      SHA512

      191ae5c0acdfa5165b2ff480becae63242478e0b46ff13e244cde21d06ee2119c2402e69285d40037618b68013bf3d3a19675357aededbb24f6217435eff5d80

    • C:\Users\Admin\AppData\Local\Temp\{D6887ADA-0A21-4d18-91A5-6D12C7975DF7}.tmp\7z.dll

      Filesize

      1.1MB

      MD5

      2888126384d873cc49af32bbe34bb296

      SHA1

      fe74877bcaec93c7d67dab2ce8c86cfc38402d22

      SHA256

      aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

      SHA512

      f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

    • C:\Users\Admin\AppData\Local\Temp\{F3F2E556-8763-42e8-840C-A17D766BE2C8}.tmp\NetBridge.dll

      Filesize

      231KB

      MD5

      9d145902fb5b9a6da62ac85761434e31

      SHA1

      c817d77f59e3767d75cf5f5298d6b5711308f7e5

      SHA256

      98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

      SHA512

      bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9