Analysis

  • max time kernel
    143s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    17/07/2020, 17:20

General

  • Target

    Request Quotation.exe

  • Size

    759KB

  • MD5

    9fb2846dca4accdd1c4fcaf212e1c6f6

  • SHA1

    b49cfbe4a19d7ab3ee7d1a33425ccc822bba3d2e

  • SHA256

    d0b71fdf377abca1c191fedeab8311dac158632edb66f3b894166686d61bfad6

  • SHA512

    9ae52ef0f49c06e650c2ede614b6ff5f3a2b6de5cc18b892c5cf72bd583a4919f160ad4c30cac8a126fdaf1e3066a7a674e471138dc70213268f597227e81616

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.varda.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    varda9997929

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe
    "C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xdfilFYBLrw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp894B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1788
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:520
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
        3⤵
        • Modifies registry key
        PID:1636

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/520-4-0x0000000000400000-0x0000000000474000-memory.dmp

          Filesize

          464KB

        • memory/520-6-0x0000000000400000-0x0000000000474000-memory.dmp

          Filesize

          464KB

        • memory/520-7-0x0000000000400000-0x0000000000474000-memory.dmp

          Filesize

          464KB