Analysis

  • max time kernel
    114s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    08-07-2020 06:29

General

  • Target

    RFQ EZR#341009_pdf.scr

  • Size

    1.2MB

  • MD5

    c08f541cd573eabbeb30f70ad3281864

  • SHA1

    19c3ea438b7128761eb4c886959f1348417dc39d

  • SHA256

    f49d13411efa1b43fa53a5dc39e03d62164f21620ec3c18b870710275685933c

  • SHA512

    3eaf8259f3ff5f0b3296a3019fef23acc2524487658b737f31b833d4a2e98e53f986c7d7e7b6c42080363aa28e218d2ad1e81b52a0f4e32b630a86dbdd3f6bc8

Malware Config

Signatures

  • AgentTesla

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

  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ EZR#341009_pdf.scr
    "C:\Users\Admin\AppData\Local\Temp\RFQ EZR#341009_pdf.scr" /S
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PDzvxxYnunjfJO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8B9B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8B9B.tmp

    MD5

    e45e3f80a860a825eccf11ee53c7c9f2

    SHA1

    3d6a8089cd23eabaee74184775e55f5ba8efedca

    SHA256

    822b5175ed000d75f1e1b5d85cb2f98568407ab319309fa657e9c417e5641c86

    SHA512

    cf8b7e5ba02955d3fd2d3d855e20f943835e9530d418105f861a1510f316d9dbad064eeb502ba2adf87bf75158414155fb345af529888545ffdaf79d533c3ef6

  • memory/608-1-0x0000000000000000-0x0000000000000000-disk.dmp

  • memory/1616-2-0x0000000000000000-mapping.dmp