Resubmissions

17-05-2021 09:25

210517-2f8q38pbyx 8

17-05-2021 07:50

210517-j6sxl5g16x 8

Analysis

  • max time kernel
    125s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    17-05-2021 09:25

General

  • Target

    NitroSnypa.exe

  • Size

    179KB

  • MD5

    61fccc142e2bbf498885bb6e42bae62c

  • SHA1

    7f15507c7798d8b99696c19929c86c6c629eb2f5

  • SHA256

    ae91da58a702252cc0dabcf19fa65e9655c7b7143e71e048aad1ebe59a31aabf

  • SHA512

    a3cc95a442581d02c97d4fe48494b157f37e5dff4ddf175723a2c99e442492370ad65f9f22da29ffd020754445193215b7dadc3515ab8cee91b6dd3b1f1202b1

Malware Config

Signatures

  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NitroSnypa.exe
    "C:\Users\Admin\AppData\Local\Temp\NitroSnypa.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of SetWindowsHookEx
    PID:1120
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1308

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1120-60-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/1120-62-0x000000001B1C0000-0x000000001B1C2000-memory.dmp

    Filesize

    8KB

  • memory/1120-64-0x000000001B1E5000-0x000000001B1E6000-memory.dmp

    Filesize

    4KB

  • memory/1120-63-0x000000001B1C6000-0x000000001B1E5000-memory.dmp

    Filesize

    124KB

  • memory/1120-65-0x000000001B1E6000-0x000000001B1E7000-memory.dmp

    Filesize

    4KB

  • memory/1120-66-0x0000000024F70000-0x0000000024F71000-memory.dmp

    Filesize

    4KB

  • memory/1120-67-0x000000001B1E7000-0x000000001B1E8000-memory.dmp

    Filesize

    4KB