Analysis

  • max time kernel
    111s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:20

General

  • Target

    PAYMENT DETAILS.exe

  • Size

    493KB

  • MD5

    3a9a227176fb62ce49babf580bb65d3a

  • SHA1

    bab607332c3e627c5625daefff43a30bc911a11e

  • SHA256

    b1d739f172585d015a122fa13d80e292e82a0e6933b40586b8c52f09414d4691

  • SHA512

    c75101c47ed62530b94b02db01ca5eece4698217d7e6ae50a640272cf9286980a2146e62aa16d335496d4e92048fdae7b01f5bc9957afcb000064c183a02065f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.starmakertravel.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    admin2000

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT DETAILS.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aXtGxjkjVdlbUx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF51.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1992
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT DETAILS.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1996
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1076

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpCF51.tmp

      Filesize

      1KB

      MD5

      6417e49a267fbfe256539dca526d3c30

      SHA1

      59a07a584afd52c69d8940fbfbb00886cf8855bc

      SHA256

      aedb91e4569beeb265d67b35f4bd7ae96e088a2d146b6e472ce4f6d80a3dd408

      SHA512

      3ed77a7e7000d063d89ead5f0557d01ebc0ab8a4b464eb663b24f4f72b1137d70fb7d90d7ce512dfd12098ee2df9237b0c3dc6c070d7e0dfb32b76f93b24e13e

    • memory/860-55-0x00000000763C1000-0x00000000763C3000-memory.dmp

      Filesize

      8KB

    • memory/860-56-0x00000000005D0000-0x00000000005D8000-memory.dmp

      Filesize

      32KB

    • memory/860-57-0x0000000000B70000-0x0000000000BC8000-memory.dmp

      Filesize

      352KB

    • memory/860-54-0x0000000001210000-0x0000000001292000-memory.dmp

      Filesize

      520KB

    • memory/1076-72-0x0000000000000000-mapping.dmp

    • memory/1992-58-0x0000000000000000-mapping.dmp

    • memory/1996-60-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1996-63-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1996-64-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1996-65-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1996-66-0x000000000044B0EE-mapping.dmp

    • memory/1996-68-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1996-70-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/1996-61-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB