Overview

overview

8

Static

static

cpcrs.exe

windows7_x64

8

cpcrs.exe

windows10-2004_x64

8

csrss.exe

windows7_x64

1

csrss.exe

windows10-2004_x64

1

Sharing

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General

  • Target
    8dd8b9bd94de1e72f0c400c5f32dcefc114cc0a5bf14b74ba6edc19fd4aeb2a5.zip
  • Size 236KB
  • Sample220322-pfgnwabdgn
  • SHA256 8dd8b9bd94de1e72f0c400c5f32dcefc114cc0a5bf14b74ba6edc19fd4aeb2a5
  • MD5 SHA1 SHA512
Score
8/10
persistenceransomwarespywarestealer

Malware Config

Targets

    • Target
      cpcrs.exe
    • Size 419KB
    • SHA256 3b2e708eaa4744c76a633391cf2c983f4a098b46436525619e5ea44e105355fe
    • MD5 SHA1 SHA512
    Score
    8/10
    persistenceransomwarespywarestealer

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

      persistence

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops desktop.ini file(s)

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    behavioral1behavioral2
    • Target
      csrss.exe
    • Size 412KB
    • SHA256 30b3cbe8817ed75d8221059e4be35d5624bd6b5dc921d4991a7adc4c3eb5de4a
    • MD5 SHA1 SHA512
    Score
    1/10
    behavioral3behavioral4

MITRE ATT&CK Enterprise v6

Tasks