Overview

overview

10

Static

static

3fb28b39_b...is.exe

windows7_x64

10

3fb28b39_b...is.exe

windows10_x64

10

Sharing

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General

  • Target
    3fb28b39_by_Libranalysis
  • Size 636KB
  • Sample210505-waeax43can
  • SHA256 6279abde41ce2445065fd31b0762774da7a532e622d4e144ff47a5b4eda34fc4
  • MD5 SHA1 SHA512
Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target
      3fb28b39_by_Libranalysis
    • Size 636KB
    • SHA256 6279abde41ce2445065fd31b0762774da7a532e622d4e144ff47a5b4eda34fc4
    • MD5 SHA1 SHA512
    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks