Analysis

  • max time kernel
    95s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    17/12/2020, 14:20

General

  • Target
    hesaphareket.exe
  • Size 56KB
  • Sample201217-vclrxg4yme
  • SHA256 cb866da199696cea1ffe6bd8498c1d2bcf3dd75772291e0d454c4e82c6a51272
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    frostdell.uk

  • Port

    587

  • Password

    7213575aceACE@#$

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hesaphareket.exe
    "C:\Users\Admin\AppData\Local\Temp\hesaphareket.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 4.233
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3744
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4.233
        3⤵
        • Delays execution with timeout.exe
        PID:524
    • C:\Users\Admin\AppData\Local\Temp\hesaphareket.exe
      "C:\Users\Admin\AppData\Local\Temp\hesaphareket.exe"
      2⤵
        PID:2072
      • C:\Users\Admin\AppData\Local\Temp\hesaphareket.exe
        "C:\Users\Admin\AppData\Local\Temp\hesaphareket.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3256

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3256-23-0x0000000003310000-0x0000000003311000-memory.dmp

          memory/3256-22-0x0000000006830000-0x0000000006831000-memory.dmp

          memory/3256-21-0x0000000006440000-0x0000000006441000-memory.dmp

          memory/3256-20-0x0000000005CB0000-0x0000000005CB1000-memory.dmp

          memory/3256-15-0x0000000073900000-0x0000000073FEE000-memory.dmp

          memory/3256-12-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/4684-9-0x0000000006640000-0x0000000006641000-memory.dmp

          memory/4684-8-0x0000000002AE0000-0x0000000002B1E000-memory.dmp

          memory/4684-2-0x0000000073900000-0x0000000073FEE000-memory.dmp

          memory/4684-5-0x00000000051B0000-0x00000000051B1000-memory.dmp

          memory/4684-3-0x00000000009B0000-0x00000000009B1000-memory.dmp