Overview

overview

10

Static

static

10

7c774062bc...in.exe

windows7_x64

10

7c774062bc...in.exe

windows10_x64

10

Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    10-11-2021 00:42

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General

  • Target

    7c774062bc55e2d0e869d5d69820aa6e3b759454dbc926475b4db6f7f2b6cb14.bin.exe

  • Size

    500KB

  • MD5

    dfe4dcc5c1ecd6cc9fea2373c672c326

  • SHA1

    11e399bed1a2e4ac51dfbae16a21f1adaff7c95f

  • SHA256

    7c774062bc55e2d0e869d5d69820aa6e3b759454dbc926475b4db6f7f2b6cb14

  • SHA512

    9f9e43601a88c386026d58e0f95785a97d86b228dbe5bb168dec90297c0480d8ba9aa07bdd92b90b0033dd098c2f1da17c72a1b05678fb2d6db43b254dbb1523

Score
10/10
mespinozaransomwarespywarestealer

Malware Config

Signatures

  • Mespinoza Ransomware 2 TTPs

    Also known as Pysa. Ransomware-as-a-servoce which first appeared in 2020.

    ransomwaremespinoza
  • Modifies extensions of user files 14 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • 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.

  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c774062bc55e2d0e869d5d69820aa6e3b759454dbc926475b4db6f7f2b6cb14.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\7c774062bc55e2d0e869d5d69820aa6e3b759454dbc926475b4db6f7f2b6cb14.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1344
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
      • Deletes itself
      PID:1516

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1344-55-0x00000000757A1000-0x00000000757A3000-memory.dmp

    Filesize

    8KB

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