Overview

overview

10

Static

static

1

CUSTOM FORM E.xls

windows7-x64

10

CUSTOM FORM E.xls

windows10-2004-x64

1

Sharing

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General

  • Target
    CUSTOM FORM E.xls
  • Size 1.0MB
  • Sample230302-nnapvscd2s
  • SHA256 367f43f9444ce24cad2611f59e61608566a772fe098d081e20349440010681d7
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
purecryptersnakekeyloggercollectiondownloaderkeyloggerloaderstealer

Malware Config

Extracted

Family

  • purecrypter

C2

  • http://192.3.26.135/uo/Ksagb.png

Extracted

Family

  • snakekeylogger

Credentials

Targets

    • Target
      CUSTOM FORM E.xls
    • Size 1.0MB
    • SHA256 367f43f9444ce24cad2611f59e61608566a772fe098d081e20349440010681d7
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    purecryptersnakekeyloggercollectiondownloaderkeyloggerloaderstealer

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

      loaderdownloaderpurecrypter

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

      stealerkeyloggersnakekeylogger

    • Snake Keylogger payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

      collection

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks