Analysis

  • max time kernel
    84s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    14-07-2020 13:25

General

  • Target

    Invoice copy.pdf.exe

  • Size

    699KB

  • MD5

    87de5db071f313cc111754e5853ddb2d

  • SHA1

    6f4db55d134f2d08b719b14a3d9a3c328c1ae405

  • SHA256

    21327be564dca2dd0136871d257a99b68daf3a09af75a0fb947f65708f1df2b0

  • SHA512

    0e0c91a9222d229f6c0fd4c26931cb645bfd80da3e8acdc2997bbda94dda4ab8521e50d780f552ab0d4e0ea0e2ab0c54736c4e26214e0b30864b0aa7de3affd8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kingmoney12345

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:240
    • C:\Users\Admin\AppData\Local\Temp\Invoice copy.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1056

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/240-1-0x0000000000000000-0x0000000000000000-disk.dmp

  • memory/1056-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1056-3-0x0000000000446DDE-mapping.dmp

  • memory/1056-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1056-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB