Analysis

  • max time kernel
    102s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:55

General

  • Target

    Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe

  • Size

    703KB

  • MD5

    f7e4dc379ddd4b5270cb5ab2c3a87180

  • SHA1

    0f1dabc652cfbff53b61b5bc1f90c116d5058e95

  • SHA256

    fc83deb95f3429cec6679ff8d3ebdcc3ef8cf4944bf0b83dd4d84e5f664b000b

  • SHA512

    4815a936eb0c2997ebb48baa29ebd7437ba47c5fdaf37da80e9c8d4d402a49aa31165e1ad1a22c50dae1f70fdc4cfd7e909de60160d5dee8c009ede193444197

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.trademaxperu.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    icui4cu2@@

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.trademaxperu.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    icui4cu2@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4144
    • C:\Users\Admin\AppData\Local\Temp\Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe
      "{path}"
      2⤵
        PID:4216
      • C:\Users\Admin\AppData\Local\Temp\Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2016

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe.log

      Filesize

      1KB

      MD5

      400f1cc1a0a0ce1cdabda365ab3368ce

      SHA1

      1ecf683f14271d84f3b6063493dce00ff5f42075

      SHA256

      c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

      SHA512

      14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

    • memory/2016-136-0x0000000000000000-mapping.dmp

    • memory/2016-137-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2016-139-0x0000000005FD0000-0x0000000006036000-memory.dmp

      Filesize

      408KB

    • memory/2016-140-0x0000000006C60000-0x0000000006CB0000-memory.dmp

      Filesize

      320KB

    • memory/4144-130-0x00000000002E0000-0x0000000000396000-memory.dmp

      Filesize

      728KB

    • memory/4144-131-0x0000000005340000-0x00000000058E4000-memory.dmp

      Filesize

      5.6MB

    • memory/4144-132-0x0000000004FB0000-0x0000000005042000-memory.dmp

      Filesize

      584KB

    • memory/4144-133-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

      Filesize

      40KB

    • memory/4144-134-0x00000000087A0000-0x000000000883C000-memory.dmp

      Filesize

      624KB

    • memory/4216-135-0x0000000000000000-mapping.dmp