Analysis

  • max time kernel
    119s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2023 06:38

General

  • Target

    YKBGunlukEkstre.exe

  • Size

    496KB

  • MD5

    1b278305cb4e9f2127d141e7bf35208c

  • SHA1

    d91fedc2f515fe0b94f808700c6c94d123bbf6f9

  • SHA256

    0fcc6d53f8ef84332db1f7e6f884870964ef6b6d718000cfbaaa224dcb5fb90e

  • SHA512

    a858319b18666671f1f94cd41789cef35cb526e36482b622deb9b64ef98fbe4c851ff204c68714183ef6f5be4c2ffe312ec419065a32e3b486925d89f1eab85d

  • SSDEEP

    12288:wcR4gPI6771YWj8+rhD9TvwsJVXAlonR8HFBN:tN7ljB9rwsJ9ny

Malware Config

Extracted

Family

snakekeylogger

Credentials

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

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 IoCs
  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YKBGunlukEkstre.exe
    "C:\Users\Admin\AppData\Local\Temp\YKBGunlukEkstre.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Users\Admin\AppData\Local\Temp\YKBGunlukEkstre.exe
      "C:\Users\Admin\AppData\Local\Temp\YKBGunlukEkstre.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2276

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2276-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2276-18-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-8-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-10-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-24-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2276-22-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-20-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-12-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-14-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2276-25-0x0000000004A20000-0x0000000004A60000-memory.dmp

    Filesize

    256KB

  • memory/2820-2-0x0000000004BD0000-0x0000000004C10000-memory.dmp

    Filesize

    256KB

  • memory/2820-7-0x0000000004BD0000-0x0000000004C10000-memory.dmp

    Filesize

    256KB

  • memory/2820-0-0x0000000000A90000-0x0000000000B10000-memory.dmp

    Filesize

    512KB

  • memory/2820-1-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-6-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-5-0x00000000021B0000-0x000000000220E000-memory.dmp

    Filesize

    376KB

  • memory/2820-23-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-4-0x00000000003A0000-0x00000000003AA000-memory.dmp

    Filesize

    40KB

  • memory/2820-3-0x0000000000380000-0x000000000038E000-memory.dmp

    Filesize

    56KB