Analysis

  • max time kernel
    185s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/10/2022, 17:58

General

  • Target

    a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe

  • Size

    626KB

  • MD5

    670b86cbb111171540b017878613b72c

  • SHA1

    34ad2cabcf5eccb84c261ae679b9be08e4fb5275

  • SHA256

    a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3

  • SHA512

    51fd4e7ca18e1c44a7e60b1893cd6867514e58fa554e7a4f6197b7d86cb1be21b90127f1260bf209cca7fa8e935476ded4c2b52a5a94fdca00defc8df9ea8b7c

  • SSDEEP

    6144:k9PwWA2YMHAy0zWwxhiK+WLT5ozfUJtwHF:whYMHHE7hm4QH

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
    "C:\Users\Admin\AppData\Local\Temp\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1376

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe

          Filesize

          586KB

          MD5

          6be41d7c1d6e1770d20c27eb94459b18

          SHA1

          a669f38f9c2d52bcedd380996dd096c611950a05

          SHA256

          26f016e9be2eb6d167f5e51572aca3e9880c09f12f8cf3e868d04e827a85d5a8

          SHA512

          f0f5c578d3e3ce26e95e3b39d18285ac495f238e360d788f1fa0e52ed2e817c9845657f8ff5a191eb932535e0ba462537decbbf6500cf4bde2959eff8c9998a8

        • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

          Filesize

          252KB

          MD5

          9e2b9928c89a9d0da1d3e8f4bd96afa7

          SHA1

          ec66cda99f44b62470c6930e5afda061579cde35

          SHA256

          8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

          SHA512

          2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

        • \Users\Admin\AppData\Local\Temp\3582-490\a8aaf237a73018c7c14b180336b57d08d5c6a352ce359985521fbb32745d8be3.exe

          Filesize

          586KB

          MD5

          6be41d7c1d6e1770d20c27eb94459b18

          SHA1

          a669f38f9c2d52bcedd380996dd096c611950a05

          SHA256

          26f016e9be2eb6d167f5e51572aca3e9880c09f12f8cf3e868d04e827a85d5a8

          SHA512

          f0f5c578d3e3ce26e95e3b39d18285ac495f238e360d788f1fa0e52ed2e817c9845657f8ff5a191eb932535e0ba462537decbbf6500cf4bde2959eff8c9998a8

        • memory/1544-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

          Filesize

          8KB