Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    04/05/2021, 12:59

General

  • Target
    Payment Copy.pdf.exe
  • Size 2.8MB
  • Sample210504-ctfkpy2m46
  • SHA256 5b47e23b2eedf1f1c3fb2f38b573e783920befab88279c2eebd229f5507f6934
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.abanit.net

  • Port

    587

  • Password

    WICUcoF4

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Copy.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3896
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment Copy.pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hsyIylfXIZKE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1852
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hsyIylfXIZKE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB557.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3312
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hsyIylfXIZKE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • C:\Users\Admin\AppData\Local\Temp\Payment Copy.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Copy.pdf.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2696

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1368-151-0x0000000006E60000-0x0000000006E61000-memory.dmp

        memory/1368-197-0x0000000006E63000-0x0000000006E64000-memory.dmp

        memory/1368-188-0x000000007E570000-0x000000007E571000-memory.dmp

        memory/1368-183-0x0000000009250000-0x0000000009283000-memory.dmp

        memory/1368-152-0x0000000006E62000-0x0000000006E63000-memory.dmp

        memory/1852-147-0x0000000007372000-0x0000000007373000-memory.dmp

        memory/1852-159-0x00000000089A0000-0x00000000089A1000-memory.dmp

        memory/1852-143-0x0000000007370000-0x0000000007371000-memory.dmp

        memory/1852-123-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

        memory/1852-195-0x0000000007373000-0x0000000007374000-memory.dmp

        memory/1852-192-0x000000007E530000-0x000000007E531000-memory.dmp

        memory/2696-201-0x0000000001500000-0x00000000015AE000-memory.dmp

        memory/2696-150-0x0000000001500000-0x00000000015AE000-memory.dmp

        memory/2696-128-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/3896-114-0x0000000000FF0000-0x000000000113A000-memory.dmp

        memory/3936-149-0x0000000007112000-0x0000000007113000-memory.dmp

        memory/3936-153-0x0000000007E30000-0x0000000007E31000-memory.dmp

        memory/3936-156-0x0000000007EA0000-0x0000000007EA1000-memory.dmp

        memory/3936-126-0x0000000007750000-0x0000000007751000-memory.dmp

        memory/3936-194-0x000000007EF10000-0x000000007EF11000-memory.dmp

        memory/3936-133-0x0000000007620000-0x0000000007621000-memory.dmp

        memory/3936-196-0x0000000007113000-0x0000000007114000-memory.dmp

        memory/3936-136-0x00000000076C0000-0x00000000076C1000-memory.dmp

        memory/3936-145-0x0000000007110000-0x0000000007111000-memory.dmp

        memory/3936-140-0x0000000008000000-0x0000000008001000-memory.dmp

        memory/3936-138-0x0000000007D80000-0x0000000007D81000-memory.dmp