Overview

overview

10

Static

static

10

scvhost.exe

windows7_x64

10

Resubmissions

28/03/2025, 16:33

250328-t2z5kayvbw10

25/03/2025, 14:33

250325-rwtz9axvhy10

25/03/2025, 14:30

250325-rt744a1ly810

05/02/2025, 10:34

250205-mmassssng110

05/02/2025, 10:33

250205-mlx7pssnfz10

13/01/2022, 17:53

220113-wgrc2abhgp10

Analysis

  • max time kernel
    90s
  • max time network
    90s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13/01/2022, 17:53

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General

  • Target
    scvhost.exe
  • Size 500KB
  • Sample220113-wgrc2abhgp
  • SHA256 5fa8c4ab6dc45672099078277903cce8e86ae1e310f24a0dd9862166e3c0e30c
  • MD5 SHA1 SHA512
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 18 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\scvhost.exe
    "C:\Users\Admin\AppData\Local\Temp\scvhost.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:1624
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
      • Deletes itself
      PID:1688
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1280
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      1⤵
        PID:1000

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/1280-55-0x000007FEFB5B1000-0x000007FEFB5B3000-memory.dmp
            Download

            memory/1624-54-0x0000000075AB1000-0x0000000075AB3000-memory.dmp
            Download