Analysis

  • max time kernel
    125s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    19-10-2021 10:17

General

  • Target

    PO37F2020-2021.doc.exe

  • Size

    455KB

  • MD5

    50e83b21c7ad607d296d0c12e6c66a0e

  • SHA1

    d1c4b5d66139793c055a7874052076b6c0449228

  • SHA256

    e222a0ce0e2d6f8af964efd2510a70a957aabec7fc95d806a4af431f519d9135

  • SHA512

    00f8ee3fbe466c92a6716d8c11141950a291c8d8b2a7d4ea4d97a630e669caba746e75962f47035f4d2f0bcb74641d57665b81621c00362425fec9ba274001f1

Malware Config

Extracted

Family

agenttesla

Credentials

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

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO37F2020-2021.doc.exe
    "C:\Users\Admin\AppData\Local\Temp\PO37F2020-2021.doc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\PO37F2020-2021.doc.exe
      "C:\Users\Admin\AppData\Local\Temp\PO37F2020-2021.doc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/772-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/772-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/772-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/772-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/772-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/772-64-0x0000000000436D8E-mapping.dmp

  • memory/772-65-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/772-67-0x00000000049E0000-0x00000000049E1000-memory.dmp

    Filesize

    4KB

  • memory/2008-55-0x0000000075FA1000-0x0000000075FA3000-memory.dmp

    Filesize

    8KB

  • memory/2008-56-0x0000000004160000-0x0000000004161000-memory.dmp

    Filesize

    4KB

  • memory/2008-57-0x00000000003E0000-0x00000000003E8000-memory.dmp

    Filesize

    32KB

  • memory/2008-58-0x0000000005B90000-0x0000000005BE7000-memory.dmp

    Filesize

    348KB

  • memory/2008-53-0x00000000009C0000-0x00000000009C1000-memory.dmp

    Filesize

    4KB