Overview

overview

10

Static

static

3

z43ISFFORM...ne.exe

windows7-x64

10

z43ISFFORM...ne.exe

windows10-2004-x64

8

Sharing

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General

  • Target
    z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe
  • Size 632KB
  • Sample240509-smwcdsbc92
  • SHA256 21773cea42a57dff11a05f01ea94f48fc457871b110a410e4ccb416a4e346229
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
guloaderdownloaderexecutionpersistence

Malware Config

Targets

    • Target
      z43ISFFORMHBLDRAFTTHBL53164US7272Coscoline.exe
    • Size 632KB
    • SHA256 21773cea42a57dff11a05f01ea94f48fc457871b110a410e4ccb416a4e346229
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    guloaderdownloaderexecutionpersistence

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks