General

  • Target

    dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625_JC.exe

  • Size

    466KB

  • Sample

    231003-sm4c1acf5s

  • MD5

    4d5ce0ea9efcb7e3fdb61c32d1626748

  • SHA1

    5813b82a84f3c3d8f4b5a7af227026fc2c8c7f66

  • SHA256

    dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625

  • SHA512

    9739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1

  • SSDEEP

    12288:zMYG3l6sMIBJCx6icVkGYJ/Zi/PBs6lD+S:zjGDFkiPB9lD+S

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gkas.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Gkasteknik@2022

Targets

    • Target

      dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625_JC.exe

    • Size

      466KB

    • MD5

      4d5ce0ea9efcb7e3fdb61c32d1626748

    • SHA1

      5813b82a84f3c3d8f4b5a7af227026fc2c8c7f66

    • SHA256

      dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625

    • SHA512

      9739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1

    • SSDEEP

      12288:zMYG3l6sMIBJCx6icVkGYJ/Zi/PBs6lD+S:zjGDFkiPB9lD+S

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger payload

    • UAC bypass

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks