Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    25-10-2021 06:13

General

  • Target

    DHL DLIVERY PERCEL.exe

  • Size

    797KB

  • MD5

    5e8244fb1be90200656767e9c1a93144

  • SHA1

    211743f1587cb8322d3f5c0b45a868a11b1ba566

  • SHA256

    a2f932924ad1fed3019fc434a560d1bbf9e9e85215decbdfa3a19397fd7d2de6

  • SHA512

    541847a86c2365b8dd044431a27a351b151330677fb08a30dc1b42a0f856681d47a59788fd2d7a6cf5202117769ef14d3cf14639c5e6e585adef2fade2f995e8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    washingtondc300

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL DLIVERY PERCEL.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL DLIVERY PERCEL.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:940
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kNUtJpeh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D1C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:560
    • C:\Users\Admin\AppData\Local\Temp\DHL DLIVERY PERCEL.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL DLIVERY PERCEL.exe"
      2⤵
        PID:1804

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/560-58-0x0000000000000000-mapping.dmp

    • memory/940-55-0x0000000074A31000-0x0000000074A33000-memory.dmp

      Filesize

      8KB

    • memory/940-56-0x0000000000B70000-0x0000000000B71000-memory.dmp

      Filesize

      4KB

    • memory/940-57-0x0000000000B71000-0x0000000000B72000-memory.dmp

      Filesize

      4KB

    • memory/1804-59-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1804-60-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1804-62-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1804-61-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1804-63-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1804-64-0x000000000043761E-mapping.dmp

    • memory/1804-66-0x0000000000D70000-0x0000000000D71000-memory.dmp

      Filesize

      4KB