Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    02-06-2023 13:20

General

  • Target

    CaixaBank _ banca digital CaixaBankNow.exe

  • Size

    767KB

  • MD5

    4b6be38cb9bf11d6dfe312668ada7616

  • SHA1

    fef22666290a4dea202b4cce1ad934af6f61fd56

  • SHA256

    3c4b8818b3e073f0e5ac71ad850ae2ef3f1a5270d99169ee9892fe86977642af

  • SHA512

    2682673865311c2eda1c862f45974c5f43ff22357d8ccf849f91a8339a0095b1c7a1acf19ada128ef62c399eaf5ef61cd7f5e8e82b56df5fecc115a65ecefa81

  • SSDEEP

    12288:Lx+OSUAh3NVr572iNa7xdvo/MdyrhFgtDsuBHsSj5J4+saBGHfNP4yKylHaC1Z4h:0N1U9BqmycgiH75BMNP4yKDr3RXl/o1m

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mutuadebasto.pt
  • Port:
    587
  • Username:
    fernando.basto@mutuadebasto.pt
  • Password:
    mutua_Fernando123
  • Email To:
    brownrocketss@gmail.com

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 7 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe
    "C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe
      "C:\Users\Admin\AppData\Local\Temp\CaixaBank _ banca digital CaixaBankNow.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1512

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1200-54-0x0000000000E10000-0x0000000000ED6000-memory.dmp
    Filesize

    792KB

  • memory/1200-55-0x00000000047D0000-0x0000000004810000-memory.dmp
    Filesize

    256KB

  • memory/1200-56-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1200-57-0x00000000047D0000-0x0000000004810000-memory.dmp
    Filesize

    256KB

  • memory/1200-58-0x0000000000410000-0x000000000041C000-memory.dmp
    Filesize

    48KB

  • memory/1200-59-0x0000000004EB0000-0x0000000004F14000-memory.dmp
    Filesize

    400KB

  • memory/1200-60-0x0000000004750000-0x000000000477A000-memory.dmp
    Filesize

    168KB

  • memory/1512-61-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-62-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-63-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-64-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-66-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1512-68-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-70-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1512-71-0x0000000004360000-0x00000000043A0000-memory.dmp
    Filesize

    256KB

  • memory/1512-72-0x0000000004360000-0x00000000043A0000-memory.dmp
    Filesize

    256KB