Analysis

  • max time kernel
    138s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    29-06-2020 19:22

General

  • Target

    CONTENEDOR DE COMPRA.pdf.exe

  • Size

    443KB

  • MD5

    72ed8d80ded5c6f7044fafa1a67f9e47

  • SHA1

    9fbdf68bfa4f708a1b1b9f6ba04800fc524158a3

  • SHA256

    7f9d61cafc1ba6c3438d0627ca782cb90ee750d9ae39aa7e57661dea0f7bd5c7

  • SHA512

    41649e306b59990ff62d5046d568ccabc8152ff97df2693fc895f340e87f643013f943883033e4cad04e842edf44242ad6c099caf89203fca76a549daec4e0a9

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.trademaxperu.com
  • Port:
    587
  • Username:
    potbelly_ugonna@trademaxperu.com
  • Password:
    icui4cu2@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CONTENEDOR DE COMPRA.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\CONTENEDOR DE COMPRA.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\CONTENEDOR DE COMPRA.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1204

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1204-0-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1204-1-0x00000000004476AE-mapping.dmp
  • memory/1204-2-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1204-3-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB