Analysis

  • max time kernel
    147s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2022, 21:16

General

  • Target

    a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe

  • Size

    1.0MB

  • MD5

    6416729fb978fc6643e59ccc3a2790ec

  • SHA1

    a79704ecc23a7468436eaaffb45a617126434ab7

  • SHA256

    a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8

  • SHA512

    4947c1e202d2124d0bc3a5e9112072d52a05b9453f20fb93a347c019e6a203e37a3faf516ab084730b3f33502a072c7112ee29c9c618438168721da2e8ce20d9

  • SSDEEP

    24576:MNs1cOV3lUb9oOwkcSPG0Zh4X+6tYBPEueryCDQ7tM:MNUNZswpgZhb6wCNQa

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe
    "C:\Users\Admin\AppData\Local\Temp\a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:3932

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3582-490\a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe

          Filesize

          1011KB

          MD5

          15ce577f46bda1dfa2c8b10a8d0a02e5

          SHA1

          8fd1b1b2a48dbc55453bbd45e23b6a54d7afbefb

          SHA256

          1991ad953d2ee4f310fb5bb8b2e682c0a777ffc394242da8d533255666ad6855

          SHA512

          d78376fcf6b954afc2d8856d949365b5df5f146c4f48dab41eeb85e47e9987dc2c8c28aac2c79549b045022a14b7819ab42d33ca57f8a48d9800759083a4a36b

        • C:\Users\Admin\AppData\Local\Temp\3582-490\a90ac552ec369851ec4579b4a603d2b4a11ad3432c41cfc74f071900e89dc2c8.exe

          Filesize

          1011KB

          MD5

          15ce577f46bda1dfa2c8b10a8d0a02e5

          SHA1

          8fd1b1b2a48dbc55453bbd45e23b6a54d7afbefb

          SHA256

          1991ad953d2ee4f310fb5bb8b2e682c0a777ffc394242da8d533255666ad6855

          SHA512

          d78376fcf6b954afc2d8856d949365b5df5f146c4f48dab41eeb85e47e9987dc2c8c28aac2c79549b045022a14b7819ab42d33ca57f8a48d9800759083a4a36b