Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    27-02-2021 11:08

General

  • Target

    c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe

  • Size

    505KB

  • MD5

    ebb6953b42064816c172bf1384bff891

  • SHA1

    83874ac89ffc018f26f7f0b4ec8dcbb67803b5ad

  • SHA256

    c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9

  • SHA512

    43a2d0ef1f434aea5d7da25fd6ed35d1a23e4ad2696b924f96a30237e21923832576d85877e1cad01fda796946dd021699ad5cf4aa415c30ba0dcfa8c75d1d1f

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.maccinox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    peru2016

Signatures

  • 404 Keylogger

    Information stealer and keylogger first seen in 2019.

  • 404 Keylogger Main Executable 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe
    "C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe
      "C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe"
      2⤵
        PID:1312
      • C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe
        "C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe"
        2⤵
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1300

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1300-8-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

    • memory/1300-9-0x000000000041CB9E-mapping.dmp

    • memory/1300-10-0x0000000074570000-0x0000000074C5E000-memory.dmp

      Filesize

      6.9MB

    • memory/1300-11-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

    • memory/1300-13-0x0000000004C40000-0x0000000004C41000-memory.dmp

      Filesize

      4KB

    • memory/1852-2-0x0000000074570000-0x0000000074C5E000-memory.dmp

      Filesize

      6.9MB

    • memory/1852-3-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

      Filesize

      4KB

    • memory/1852-5-0x0000000004E70000-0x0000000004E71000-memory.dmp

      Filesize

      4KB

    • memory/1852-6-0x00000000005A0000-0x00000000005A3000-memory.dmp

      Filesize

      12KB

    • memory/1852-7-0x0000000000A70000-0x0000000000AB3000-memory.dmp

      Filesize

      268KB