Analysis

  • max time kernel
    61s
  • max time network
    13s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09/11/2020, 20:31

General

  • Target
    QUOTATION ORDER________________.exe
  • Size 565KB
  • Sample201109-321zcclqqe
  • SHA256 c2df19f344fb1d82a9bb0a0433865874edbd8ca203e843cb6452768d2aa66240
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    Ijeomam288

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION ORDER________________.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION ORDER________________.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dFQUkReUQF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B9A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1480
    • C:\Users\Admin\AppData\Local\Temp\QUOTATION ORDER________________.exe
      "{path}"
      2⤵
        PID:1732
      • C:\Users\Admin\AppData\Local\Temp\QUOTATION ORDER________________.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:1004

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/1700-0-0x0000000074D20000-0x000000007540E000-memory.dmp

            memory/1700-1-0x0000000001010000-0x0000000001011000-memory.dmp

            memory/1700-3-0x0000000000410000-0x0000000000412000-memory.dmp

            memory/1700-4-0x0000000007490000-0x00000000074E2000-memory.dmp

            memory/2044-7-0x0000000000400000-0x0000000000452000-memory.dmp

            memory/2044-9-0x0000000000400000-0x0000000000452000-memory.dmp

            memory/2044-10-0x0000000000400000-0x0000000000452000-memory.dmp

            memory/2044-11-0x0000000074CA0000-0x000000007538E000-memory.dmp