Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    20-01-2021 14:48

General

  • Target

    2d41b253cc57abc79ed7c87ea2d67448.exe

  • Size

    41KB

  • MD5

    2d41b253cc57abc79ed7c87ea2d67448

  • SHA1

    891ffd575f3a96948a01bbb2b90dbcd44bbf336f

  • SHA256

    bb1192a107d1e081776f6c0943f70eaed21d71f4b748df45891dad1a4d13008a

  • SHA512

    4108a2cb78fbdeccfd41a9250b32dbbdd9e76951bb18149f56b7b9dfeea4e1b11094490364c917ae52816d7f7d9b300f50e605ccf71c3fa62e01b27894ae5924

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    polar.argondns.net
  • Port:
    587
  • Username:
    bretandmix@temsad.com
  • Password:
    ]4&w8LUz9*LT

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 NtSetInformationThreadHideFromDebugger 12 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe
    "C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe
      "C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:200
    • C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe
      "C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe"
      2⤵
        PID:2568
      • C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe
        "C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe"
        2⤵
          PID:2648
        • C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe
          "C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe"
          2⤵
            PID:1304
          • C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe
            "C:\Users\Admin\AppData\Local\Temp\2d41b253cc57abc79ed7c87ea2d67448.exe"
            2⤵
              PID:352

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Credential Access

          Credentials in Files

          3
          T1081

          Collection

          Data from Local System

          3
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/200-11-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/200-31-0x0000000005C10000-0x0000000005C11000-memory.dmp
            Filesize

            4KB

          • memory/200-30-0x0000000005380000-0x0000000005381000-memory.dmp
            Filesize

            4KB

          • memory/200-25-0x0000000004F70000-0x0000000004F71000-memory.dmp
            Filesize

            4KB

          • memory/200-14-0x0000000073C50000-0x000000007433E000-memory.dmp
            Filesize

            6.9MB

          • memory/200-12-0x000000000043734E-mapping.dmp
          • memory/1304-24-0x000000000043734E-mapping.dmp
          • memory/1304-28-0x0000000073C50000-0x000000007433E000-memory.dmp
            Filesize

            6.9MB

          • memory/1308-6-0x00000000055D0000-0x00000000055D1000-memory.dmp
            Filesize

            4KB

          • memory/1308-8-0x00000000055A0000-0x00000000055A1000-memory.dmp
            Filesize

            4KB

          • memory/1308-7-0x0000000005670000-0x0000000005671000-memory.dmp
            Filesize

            4KB

          • memory/1308-9-0x0000000005840000-0x0000000005841000-memory.dmp
            Filesize

            4KB

          • memory/1308-2-0x0000000073C50000-0x000000007433E000-memory.dmp
            Filesize

            6.9MB

          • memory/1308-10-0x00000000066F0000-0x000000000674B000-memory.dmp
            Filesize

            364KB

          • memory/1308-23-0x0000000005820000-0x0000000005821000-memory.dmp
            Filesize

            4KB

          • memory/1308-5-0x00000000059F0000-0x00000000059F1000-memory.dmp
            Filesize

            4KB

          • memory/1308-3-0x0000000000D80000-0x0000000000D81000-memory.dmp
            Filesize

            4KB

          • memory/2568-15-0x000000000043734E-mapping.dmp
          • memory/2568-17-0x0000000073C50000-0x000000007433E000-memory.dmp
            Filesize

            6.9MB

          • memory/2648-19-0x000000000043734E-mapping.dmp