Analysis

  • max time kernel
    84s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    10-07-2020 05:08

General

  • Target

    invoice copy.pdf.exe

  • Size

    555KB

  • MD5

    08da5cb8effb83a1bfc20d4211960ddb

  • SHA1

    48e27634adf28e5f88484d4a9b51613f01263d16

  • SHA256

    963187e0780a5447539322536555e2e3898d85dfb6762e6f63d2bc634d6fa6c7

  • SHA512

    321264e2615098be16f79206997a29087a495d4c1e351b495fed9cf83672fc1f9e304f4aa0fe3f0b247f23627eea0380961201bf9cbf1f0ef6ae57570f148a28

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chibuikelightwork1

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1156-1-0x0000000000000000-0x0000000000000000-disk.dmp

  • memory/1372-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1372-3-0x0000000000446B9E-mapping.dmp

  • memory/1372-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1372-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB