Analysis

  • max time kernel
    86s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    16-07-2020 06:22

General

  • Target

    pi8Cg5anVJdQ7wK.exe

  • Size

    424KB

  • MD5

    2d491420f227a64ec8306ace86002071

  • SHA1

    94c46e86f9f030c15c35a5dd1219512ac4f3dbb4

  • SHA256

    611a1ab90193672c4b95cb934a617b98314df0a24406342a0f1fedb08efd1997

  • SHA512

    70185104b4beb0670c5915a5f4a931d1fa6761276310b662984032041efb83a58ecffb6cb26341cd232b36b6d7bc8cb455d51f664f655f4f09ab9e08bfd4e42b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    glory2018

Signatures

  • AgentTesla

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

  • AgentTesla Payload 15 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pi8Cg5anVJdQ7wK.exe
    "C:\Users\Admin\AppData\Local\Temp\pi8Cg5anVJdQ7wK.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xsSkJaA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE3B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1828
    • C:\Users\Admin\AppData\Local\Temp\pi8Cg5anVJdQ7wK.exe
      "C:\Users\Admin\AppData\Local\Temp\pi8Cg5anVJdQ7wK.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1856
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 1060
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1596

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1596-21-0x00000000028D0000-0x00000000028E1000-memory.dmp

    Filesize

    68KB

  • memory/1596-9-0x0000000002060000-0x0000000002071000-memory.dmp

    Filesize

    68KB

  • memory/1856-6-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/1856-4-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/1856-7-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB