Analysis

  • max time kernel
    150s
  • max time network
    69s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-05-2021 12:46

General

  • Target

    Payment Advice.exe

  • Size

    1.1MB

  • MD5

    e6fd86b4d700cf206695b3bc5d37401a

  • SHA1

    967a7f18033fdfdae7d6768c4adbe8573e065a83

  • SHA256

    9f5246d9c9dc30f30f1ad1ffaa3e3a5e4b81f51d2b9059527190cd3a55523eb1

  • SHA512

    f22097cf9952e040152f470e7d21315e3444546cb2bfa6e7f0f8a46599f026107534208e44fcf3b6e47ad65924570b5736f1cbc4ee839edfa32f510adc845608

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.amarantbg.com
  • Port:
    587
  • Username:
    office@amarantbg.com
  • Password:
    Office123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:3504
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:3732
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
          • Drops file in Drivers directory
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2404

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      1
      T1112

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1884-114-0x00000000002F0000-0x00000000002F1000-memory.dmp
        Filesize

        4KB

      • memory/1884-116-0x00000000071E0000-0x00000000071E1000-memory.dmp
        Filesize

        4KB

      • memory/1884-117-0x0000000007780000-0x0000000007781000-memory.dmp
        Filesize

        4KB

      • memory/1884-118-0x0000000007280000-0x0000000007281000-memory.dmp
        Filesize

        4KB

      • memory/1884-119-0x0000000007280000-0x000000000777E000-memory.dmp
        Filesize

        5.0MB

      • memory/1884-120-0x0000000004C70000-0x0000000004C71000-memory.dmp
        Filesize

        4KB

      • memory/1884-121-0x00000000073E0000-0x00000000073E1000-memory.dmp
        Filesize

        4KB

      • memory/1884-122-0x00000000071D0000-0x00000000071D4000-memory.dmp
        Filesize

        16KB

      • memory/1884-123-0x00000000076B0000-0x0000000007779000-memory.dmp
        Filesize

        804KB

      • memory/1884-124-0x000000000B410000-0x000000000B4A0000-memory.dmp
        Filesize

        576KB

      • memory/2404-125-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/2404-126-0x000000000043765E-mapping.dmp
      • memory/2404-131-0x0000000005570000-0x0000000005A6E000-memory.dmp
        Filesize

        5.0MB

      • memory/2404-132-0x00000000059F0000-0x00000000059F1000-memory.dmp
        Filesize

        4KB

      • memory/2404-133-0x00000000062D0000-0x00000000062D1000-memory.dmp
        Filesize

        4KB