Analysis

  • max time kernel
    111s
  • max time network
    107s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • 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 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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 use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 4.233
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4.233
        3⤵
        • Delays execution with timeout.exe
        PID:816
    • 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:1148

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1120-2-0x0000000074B10000-0x00000000751FE000-memory.dmp

        memory/1120-3-0x0000000001220000-0x0000000001221000-memory.dmp

        memory/1120-7-0x00000000001C0000-0x00000000001FE000-memory.dmp

        memory/1148-8-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1148-11-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1148-10-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1148-12-0x0000000074A90000-0x000000007517E000-memory.dmp