Overview

overview

10

Static

static

4bfaa0ea5c...a6.exe

windows7_x64

10

4bfaa0ea5c...a6.exe

windows10_x64

1

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General

  • Target

    4bfaa0ea5cc673bc995b83c46885658db85a8e9517295fea245865bfcb99cda6

  • Size

    1.3MB

  • Sample

    210513-exx6rczgw2

  • MD5

    b635d14db5a1f07ba688c242a1022b77

  • SHA1

    801f215221064e21a0fa2518469d64bc7bea8690

  • SHA256

    4bfaa0ea5cc673bc995b83c46885658db85a8e9517295fea245865bfcb99cda6

  • SHA512

    a6147a78fd7046e15c05811a5809330a6d9d0be23b8f09a471e21f482d00a3a5d6a02ce0f1e148b9c0e38b59904b374e37ca51e9a953bcc5da4a55cc6b0fa15e

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      4bfaa0ea5cc673bc995b83c46885658db85a8e9517295fea245865bfcb99cda6

    • Size

      1.3MB

    • MD5

      b635d14db5a1f07ba688c242a1022b77

    • SHA1

      801f215221064e21a0fa2518469d64bc7bea8690

    • SHA256

      4bfaa0ea5cc673bc995b83c46885658db85a8e9517295fea245865bfcb99cda6

    • SHA512

      a6147a78fd7046e15c05811a5809330a6d9d0be23b8f09a471e21f482d00a3a5d6a02ce0f1e148b9c0e38b59904b374e37ca51e9a953bcc5da4a55cc6b0fa15e

    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.

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks