Analysis

  • max time kernel
    118s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13-07-2020 11:27

General

  • Target

    Order10049274pdf.exe

  • Size

    328KB

  • MD5

    c71732b7a6d89bac55bf2f525c6a3a2f

  • SHA1

    8d5b4f6a236b84075f987a01e470350837c35d1c

  • SHA256

    85d34a30b3163b6db32ec267c22e5fd5cbfab30533aa4a829f9d79ca55e779d2

  • SHA512

    eb89ebbc51bcceac01edfe399916385abfa7db20bfcd23f6bad0b915a1e3822df3f70b97661b6f92bd1b6eb7f4d4112422ad71a5026c14e2eba80a81a94e6686

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.saritatravels.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sameerb%$321

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order10049274pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Order10049274pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LIVtvxl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4411.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1720
    • C:\Users\Admin\AppData\Local\Temp\Order10049274pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1792

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4411.tmp
    MD5

    c10a68bb9de6fce5635d1c871ded0e70

    SHA1

    e99070a26594d9b6f2f702fa69b57f3df45e6745

    SHA256

    c03616633d90de98549cdcdeb92286025deb226e5d1124358791f7b62e64af0c

    SHA512

    99701dbb0c8b99b605d6bc87ee46e4eaad6054d5dbf7ca2c22c5571584145efd16e1be9560047b05cb47b58711c2af94815eb1c61074413cccae1869fa3594ff

  • memory/1720-0-0x0000000000000000-mapping.dmp
  • memory/1792-3-0x0000000000446EFE-mapping.dmp
  • memory/1792-2-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1792-4-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1792-5-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB