Analysis

  • max time kernel
    125s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 07:03

General

  • Target

    05.12.2023_tahsil_senedi_bilgileri.xls.exe

  • Size

    681KB

  • MD5

    3270695f929b3f2499f9f56d76c9b08f

  • SHA1

    32e75a939b0ae09a898339004afa4bbeb3ce6d68

  • SHA256

    c7c0a22744179c319910d7c9508866ebfc6d35beeee844b8462bab9c04af4b19

  • SHA512

    23360736cdda1b3cd4cf07046936f512d3ab9c50c47422f1e7d3e689ad5143ef450ea8b3f0660c38a892c6191023b16b731c559ed11b3104e74b60f8986110f5

  • SSDEEP

    12288:Xy7KE6jD/62iNG5nF8rmi9VEsqhzUoo3j3D829wV1wIctP/T:X6KtD/61IGzEsGInjwV1wFtX

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ozakaluminyum.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ETKghx*c3KoQ

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05.12.2023_tahsil_senedi_bilgileri.xls.exe
    "C:\Users\Admin\AppData\Local\Temp\05.12.2023_tahsil_senedi_bilgileri.xls.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4552
    • C:\Users\Admin\AppData\Local\Temp\05.12.2023_tahsil_senedi_bilgileri.xls.exe
      "C:\Users\Admin\AppData\Local\Temp\05.12.2023_tahsil_senedi_bilgileri.xls.exe"
      2⤵
        PID:536
      • C:\Users\Admin\AppData\Local\Temp\05.12.2023_tahsil_senedi_bilgileri.xls.exe
        "C:\Users\Admin\AppData\Local\Temp\05.12.2023_tahsil_senedi_bilgileri.xls.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4352
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 1460
          3⤵
          • Program crash
          PID:8
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4352 -ip 4352
      1⤵
        PID:2964

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\05.12.2023_tahsil_senedi_bilgileri.xls.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • memory/4352-13-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4352-19-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4352-18-0x0000000005540000-0x0000000005550000-memory.dmp

        Filesize

        64KB

      • memory/4352-17-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4552-8-0x0000000005AB0000-0x0000000005ABA000-memory.dmp

        Filesize

        40KB

      • memory/4552-12-0x0000000005870000-0x0000000005880000-memory.dmp

        Filesize

        64KB

      • memory/4552-7-0x0000000005A90000-0x0000000005A98000-memory.dmp

        Filesize

        32KB

      • memory/4552-0-0x0000000000CF0000-0x0000000000DA0000-memory.dmp

        Filesize

        704KB

      • memory/4552-9-0x0000000007040000-0x000000000709E000-memory.dmp

        Filesize

        376KB

      • memory/4552-10-0x0000000006F30000-0x0000000006FCC000-memory.dmp

        Filesize

        624KB

      • memory/4552-11-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4552-6-0x00000000059B0000-0x00000000059C8000-memory.dmp

        Filesize

        96KB

      • memory/4552-5-0x0000000005820000-0x000000000582A000-memory.dmp

        Filesize

        40KB

      • memory/4552-4-0x0000000005870000-0x0000000005880000-memory.dmp

        Filesize

        64KB

      • memory/4552-3-0x0000000005760000-0x00000000057F2000-memory.dmp

        Filesize

        584KB

      • memory/4552-16-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4552-2-0x0000000005E70000-0x0000000006414000-memory.dmp

        Filesize

        5.6MB

      • memory/4552-1-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB