Analysis

  • max time kernel
    60s
  • max time network
    58s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2023 12:43

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 2 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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:1744
    • 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:4756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1744-10-0x0000000074970000-0x0000000075120000-memory.dmp

    Filesize

    7.7MB

  • memory/1744-16-0x0000000074970000-0x0000000075120000-memory.dmp

    Filesize

    7.7MB

  • memory/1744-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

    Filesize

    5.6MB

  • memory/1744-3-0x0000000005730000-0x00000000057C2000-memory.dmp

    Filesize

    584KB

  • memory/1744-4-0x0000000005970000-0x0000000005980000-memory.dmp

    Filesize

    64KB

  • memory/1744-5-0x0000000005710000-0x000000000571A000-memory.dmp

    Filesize

    40KB

  • memory/1744-6-0x0000000005A20000-0x0000000005ABC000-memory.dmp

    Filesize

    624KB

  • memory/1744-0-0x0000000074970000-0x0000000075120000-memory.dmp

    Filesize

    7.7MB

  • memory/1744-8-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

    Filesize

    40KB

  • memory/1744-1-0x0000000000CA0000-0x0000000000D20000-memory.dmp

    Filesize

    512KB

  • memory/1744-7-0x0000000005AD0000-0x0000000005ADE000-memory.dmp

    Filesize

    56KB

  • memory/1744-11-0x0000000005970000-0x0000000005980000-memory.dmp

    Filesize

    64KB

  • memory/1744-9-0x0000000006D30000-0x0000000006D8E000-memory.dmp

    Filesize

    376KB

  • memory/4756-18-0x0000000006B00000-0x0000000006CC2000-memory.dmp

    Filesize

    1.8MB

  • memory/4756-15-0x0000000005530000-0x0000000005540000-memory.dmp

    Filesize

    64KB

  • memory/4756-14-0x0000000074970000-0x0000000075120000-memory.dmp

    Filesize

    7.7MB

  • memory/4756-17-0x00000000068E0000-0x0000000006930000-memory.dmp

    Filesize

    320KB

  • memory/4756-12-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4756-19-0x0000000074970000-0x0000000075120000-memory.dmp

    Filesize

    7.7MB

  • memory/4756-20-0x0000000005530000-0x0000000005540000-memory.dmp

    Filesize

    64KB