Analysis

  • max time kernel
    80s
  • max time network
    62s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    08-07-2020 08:07

General

  • Target

    PO.pdf.exe

  • Size

    888KB

  • MD5

    56c6dc5e37250538b7bc7c24f39550a1

  • SHA1

    6edc1bdab87081c9dc36960767ddd19b493ba54e

  • SHA256

    a266556929b4c517579d1af3036d48929520bd91befd5e3259ce0622557e2bf8

  • SHA512

    b46d95a21a8b3c0784e6ed15a0724196ef3d874ca971a34a73fa43743967c7625e546e7e1cfb10126e1173e60c29f8117920092ef1f1d0a095b2a9b1e2808bc0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    chinapeace@yandex.com
  • 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\PO.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Temp\PO.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1408

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/1408-0-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1408-1-0x0000000000446B9E-mapping.dmp
  • memory/1408-2-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1408-3-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB