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Analysis

  • max time kernel
    136s
  • max time network
    90s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    09/07/2020, 01:49

General

  • Target

    62ee9633-f92c-4000-ae56-370964749626.bin.exe

  • Size

    1.0MB

  • MD5

    34d8364be0227837e9cd6503f426c08e

  • SHA1

    43da38e0840229b6496bff651892531c97458a38

  • SHA256

    f43b32a0a224d190f5ce2f523d8a243c1ec7e0cc16798f2eaf4e4eb22480df43

  • SHA512

    6c5865b55aa377f9eb9f8857e584c6ca7f0b5ef60984fc61789da15aa60a0bd801660790793e2da93b21b964a4f1d930c29a8eee77281cfe64d71f0e2fea3910

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.masterindo.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    uLrOsjJYN9

Signatures

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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.

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Suspicious use of WriteProcessMemory 11 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

Processes

  • C:\Users\Admin\AppData\Local\Temp\62ee9633-f92c-4000-ae56-370964749626.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\62ee9633-f92c-4000-ae56-370964749626.bin.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:2804
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OKLSlOlyqjoU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp645D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2604
    • C:\Users\Admin\AppData\Local\Temp\62ee9633-f92c-4000-ae56-370964749626.bin.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:3712

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3712-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB