General

  • Target

    ekstre.exe

  • Size

    425KB

  • Sample

    230918-jkdvwsfh4x

  • MD5

    3832b480f61f07e2d06d079d31fc8705

  • SHA1

    25f315d13ade293374cfa9ca620d86c5ca26faf1

  • SHA256

    d1618b8ab6baabcd41e3c9615a95087c609a94ac20625aac79fe23f8842cd4f9

  • SHA512

    5134d887285b68bed9f7461c2949c03ee46b0c17aaecadda1bef282c9ed1d1df65924b8000dec8e57526a2750dfd24a953ad91941be9cc6a89bfd1ccdeeeab61

  • SSDEEP

    6144:xB+pgUvsgje7ILAg2zsFnDMKxhyeELaKQ6zhMcAPn5bEEpdOBW5kcTIHIuIMjCA2:xgnN+4ABzInXKLMcCxESeWacTIHIHCmT

Malware Config

Targets

    • Target

      ekstre.exe

    • Size

      425KB

    • MD5

      3832b480f61f07e2d06d079d31fc8705

    • SHA1

      25f315d13ade293374cfa9ca620d86c5ca26faf1

    • SHA256

      d1618b8ab6baabcd41e3c9615a95087c609a94ac20625aac79fe23f8842cd4f9

    • SHA512

      5134d887285b68bed9f7461c2949c03ee46b0c17aaecadda1bef282c9ed1d1df65924b8000dec8e57526a2750dfd24a953ad91941be9cc6a89bfd1ccdeeeab61

    • SSDEEP

      6144:xB+pgUvsgje7ILAg2zsFnDMKxhyeELaKQ6zhMcAPn5bEEpdOBW5kcTIHIuIMjCA2:xgnN+4ABzInXKLMcCxESeWacTIHIHCmT

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks