Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2023 13:21

General

  • Target

    37c89d3724f91814329d61e35ff28890.exe

  • Size

    646KB

  • MD5

    37c89d3724f91814329d61e35ff28890

  • SHA1

    7413a14f623d9cb5107b35a01d51fe3d3917efc5

  • SHA256

    dcc5c6710896d51cc8f5aafbdbe0416e6dcd35fabfb5d3d33610d62ae1fc6545

  • SHA512

    8bf506853c91f8ed2c78cfa3af12ec6386f1040fb3e256857f9c16d33a20f7acd340da17ba095a3d459f5ec1c65d65e9642aea41639118f930d5216b0135d247

  • SSDEEP

    12288:xr3PU9XPU9quaSI+BRjGOsBgo0q4wM0JQIdeOrysQOMcvTTanf+yIjVjg:xrzjGOsBgo0q4wM0JQYrypOp62ySVj

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ekonaz.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    251925

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe
    "C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe
      "C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 1000
        3⤵
        • Program crash
        PID:2912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2128-13-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/2128-18-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/2128-8-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/2128-12-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/2128-10-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/2128-22-0x0000000074C70000-0x000000007535E000-memory.dmp

    Filesize

    6.9MB

  • memory/2128-16-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/2128-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2128-24-0x0000000074C70000-0x000000007535E000-memory.dmp

    Filesize

    6.9MB

  • memory/2128-23-0x0000000002000000-0x0000000002040000-memory.dmp

    Filesize

    256KB

  • memory/2128-21-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/3052-5-0x0000000004CD0000-0x0000000004D10000-memory.dmp

    Filesize

    256KB

  • memory/3052-7-0x0000000007BF0000-0x0000000007C5E000-memory.dmp

    Filesize

    440KB

  • memory/3052-20-0x0000000074C70000-0x000000007535E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-6-0x0000000007B80000-0x0000000007BF2000-memory.dmp

    Filesize

    456KB

  • memory/3052-0-0x00000000001F0000-0x0000000000298000-memory.dmp

    Filesize

    672KB

  • memory/3052-1-0x0000000074C70000-0x000000007535E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-4-0x0000000074C70000-0x000000007535E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-3-0x0000000000550000-0x0000000000562000-memory.dmp

    Filesize

    72KB

  • memory/3052-2-0x0000000004CD0000-0x0000000004D10000-memory.dmp

    Filesize

    256KB