Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2023 10:38

General

  • Target

    doc 20230925000101.exe

  • Size

    610KB

  • MD5

    607e77f9ca12ba956cb67200c50d4af7

  • SHA1

    2ab62a18b91f49aeabbba8d95c6df254b1d8fca8

  • SHA256

    6e1277ea70af2c91d96c59af4a71f64a7b1a6633687919a347c570610c578066

  • SHA512

    e1f891da4ee8966ff7def571d4cedf609f2e087b50c29ec9a062dc4a8a452ee7a3650d251e5a2188490bb27b0a2681eed441750ad9d42d644a081324668dddb3

  • SSDEEP

    12288:7MqkMPgR/mZRM+BN3SscBiUSnYpJLNRPPD4KUQbwEldtpoj:RgkZR533ToBBfPMNQUEQ

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 1 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\doc 20230925000101.exe
    "C:\Users\Admin\AppData\Local\Temp\doc 20230925000101.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:552
    • C:\Users\Admin\AppData\Local\Temp\doc 20230925000101.exe
      "C:\Users\Admin\AppData\Local\Temp\doc 20230925000101.exe"
      2⤵
        PID:1260
      • C:\Users\Admin\AppData\Local\Temp\doc 20230925000101.exe
        "C:\Users\Admin\AppData\Local\Temp\doc 20230925000101.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1416

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\doc 20230925000101.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/552-10-0x00000000058D0000-0x00000000058E0000-memory.dmp

      Filesize

      64KB

    • memory/552-5-0x0000000005750000-0x000000000575A000-memory.dmp

      Filesize

      40KB

    • memory/552-11-0x00000000058B0000-0x00000000058C0000-memory.dmp

      Filesize

      64KB

    • memory/552-17-0x00000000751D0000-0x0000000075980000-memory.dmp

      Filesize

      7.7MB

    • memory/552-12-0x000000000BFC0000-0x000000000C01E000-memory.dmp

      Filesize

      376KB

    • memory/552-6-0x00000000059D0000-0x0000000005A6C000-memory.dmp

      Filesize

      624KB

    • memory/552-7-0x0000000005890000-0x00000000058AC000-memory.dmp

      Filesize

      112KB

    • memory/552-8-0x0000000005770000-0x000000000577C000-memory.dmp

      Filesize

      48KB

    • memory/552-9-0x00000000751D0000-0x0000000075980000-memory.dmp

      Filesize

      7.7MB

    • memory/552-0-0x0000000000CE0000-0x0000000000D80000-memory.dmp

      Filesize

      640KB

    • memory/552-3-0x0000000005780000-0x0000000005812000-memory.dmp

      Filesize

      584KB

    • memory/552-2-0x0000000005C90000-0x0000000006234000-memory.dmp

      Filesize

      5.6MB

    • memory/552-4-0x00000000058D0000-0x00000000058E0000-memory.dmp

      Filesize

      64KB

    • memory/552-1-0x00000000751D0000-0x0000000075980000-memory.dmp

      Filesize

      7.7MB

    • memory/1416-16-0x00000000751D0000-0x0000000075980000-memory.dmp

      Filesize

      7.7MB

    • memory/1416-13-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1416-18-0x0000000005BD0000-0x0000000005BE0000-memory.dmp

      Filesize

      64KB

    • memory/1416-19-0x0000000006B50000-0x0000000006BA0000-memory.dmp

      Filesize

      320KB

    • memory/1416-20-0x0000000006D70000-0x0000000006F32000-memory.dmp

      Filesize

      1.8MB

    • memory/1416-21-0x00000000751D0000-0x0000000075980000-memory.dmp

      Filesize

      7.7MB

    • memory/1416-22-0x0000000005BD0000-0x0000000005BE0000-memory.dmp

      Filesize

      64KB