Analysis

  • max time kernel
    133s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-09-2024 23:55

General

  • Target

    7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe

  • Size

    4.8MB

  • MD5

    a1ccae1dbd83828dba4252af8e8a5763

  • SHA1

    c9fb0370f3546965694a3cd8c34d6bbaa4a1ac1c

  • SHA256

    7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835

  • SHA512

    2df58253115a2a6abad98222510d7b7af198210c6c3441c529b46c793000dadfa48891c375f49708f36a0757e28fe3e11c7d0f7efd1235fb69bf8168bfb26d49

  • SSDEEP

    98304:cVeM4VwHuokyfK8PGcx2HynIiprw0F80XZeGg:6AVw6kx2SnIe84eGg

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\7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.exe
    "C:\Users\Admin\AppData\Local\Temp\7b6efa5e69574520b6f51001a4c5ea4cb5da2bd3c2dac09db17df0275bebf835.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:4880
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 2040
      2⤵
      • Program crash
      PID:3764
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4880 -ip 4880
    1⤵
      PID:2524

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      854B

      MD5

      c6187e350dd1c8b3f5b8f7334f10bbc3

      SHA1

      2fadcc75c6ebd87e1699f450c08294d7b57efcfa

      SHA256

      6773015ccbb8ea68277560e7a9e421e671584a320e22c4db4510c6a3987f3967

      SHA512

      fda3624f02ea35f42a6a4a13ab5a2e29de4df5d9482d990514c61174f2d7035759f098e57dbb4ae0ad1870e49a0d7dccdacca78eb573bd2d0d3d9094289c261a

    • C:\Users\Admin\AppData\Local\Temp\{7378CA83-5DD2-4f20-8C51-0A478D8FDE29}.tmp\NetBridge.dll

      Filesize

      231KB

      MD5

      9d145902fb5b9a6da62ac85761434e31

      SHA1

      c817d77f59e3767d75cf5f5298d6b5711308f7e5

      SHA256

      98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

      SHA512

      bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

    • C:\Users\Admin\AppData\Local\Temp\{CBAD6028-3067-4e8b-A43F-AB254156CF87}.tmp\7z.dll

      Filesize

      1.1MB

      MD5

      2888126384d873cc49af32bbe34bb296

      SHA1

      fe74877bcaec93c7d67dab2ce8c86cfc38402d22

      SHA256

      aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

      SHA512

      f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a