Analysis

  • max time kernel
    135s
  • max time network
    49s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    08-07-2020 13:01

General

  • Target

    Q0001DA Payment.exe

  • Size

    672KB

  • MD5

    f9f3d9e01d4a743db0da14e09a1ee59d

  • SHA1

    749b3c58319f90bacd3f8dd3c032d7f53a78c346

  • SHA256

    43e8641205d2a76869199f8b5cf7cbba0533aee5b84c4ccd786ed32f79c9e01c

  • SHA512

    8be9b4cf8e406b8b56abdf2effb3f0f41e0ce8b9a2a74fdfeb84de6e1a04ffd8ce4823511f2082fc3b165c475dcd5f1044c520badaadd3dc8cb340e479ec99ac

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Mix2lower12?..

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops startup file 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Q0001DA Payment.exe
    "C:\Users\Admin\AppData\Local\Temp\Q0001DA Payment.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:868
    • C:\Users\Admin\AppData\Local\Temp\Q0001DA Payment.exe
      "C:\Users\Admin\AppData\Local\Temp\Q0001DA Payment.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/988-1-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/988-3-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/988-4-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/988-5-0x00000000009B0000-0x00000000009FC000-memory.dmp

    Filesize

    304KB

  • memory/988-6-0x0000000000642000-0x0000000000643000-memory.dmp

    Filesize

    4KB