Analysis

  • max time kernel
    91s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/08/2023, 20:47

General

  • Target
    Cotización_0082511.pdf.exe
  • Size 671KB
  • Sample230809-zkvreafd83
  • SHA256 e3699bdedcf4bebffc1e2e2af639da53dc9abd0e7bcb4e917def61a01a880b69
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe"
      2⤵
        PID:872
      • C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe"
        2⤵
          PID:4880
        • C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe
          "C:\Users\Admin\AppData\Local\Temp\Cotización_0082511.pdf.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3984

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/2252-141-0x00000000092E0000-0x000000000937C000-memory.dmp

            memory/2252-146-0x00000000751C0000-0x0000000075970000-memory.dmp

            memory/2252-135-0x0000000005600000-0x0000000005BA4000-memory.dmp

            memory/2252-136-0x0000000005050000-0x00000000050E2000-memory.dmp

            memory/2252-137-0x0000000005260000-0x0000000005270000-memory.dmp

            memory/2252-138-0x0000000005020000-0x000000000502A000-memory.dmp

            memory/2252-139-0x00000000751C0000-0x0000000075970000-memory.dmp

            memory/2252-140-0x0000000005260000-0x0000000005270000-memory.dmp

            memory/2252-134-0x00000000005C0000-0x000000000066E000-memory.dmp

            memory/2252-133-0x00000000751C0000-0x0000000075970000-memory.dmp

            memory/3984-142-0x0000000000400000-0x0000000000430000-memory.dmp

            memory/3984-145-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

            memory/3984-147-0x0000000004DA0000-0x0000000004E06000-memory.dmp

            memory/3984-144-0x00000000751C0000-0x0000000075970000-memory.dmp

            memory/3984-148-0x0000000005B20000-0x0000000005B70000-memory.dmp

            memory/3984-149-0x00000000751C0000-0x0000000075970000-memory.dmp

            memory/3984-150-0x0000000004EA0000-0x0000000004EB0000-memory.dmp