Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2023 15:16

General

  • Target

    Confirmacao de conta.exe

  • Size

    841KB

  • MD5

    c0faf71f9d3d14e79bec6769860b564f

  • SHA1

    2f11711bf5b4aa115d160e022b14cd1e91570737

  • SHA256

    692469e7237af7cf1c4d4b9d7abcbd5064732f6318ed91c21bd11e8f8adce3c4

  • SHA512

    63b1c4c1767fd23f18fb06f86bdd885861dfb63359cc890fe0b9aabbab67189400d676d325bddbdbb48010ca8650fdb83fe81656c07eb65dd8f0c55e2ca38764

  • SSDEEP

    24576:IyT/7fbYvQed+5d5o57m9KuDa/MFEbma:IyTjfbYvk5/o57mk0wma

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
      "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
      2⤵
        PID:552
      • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
        "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
        2⤵
          PID:880
        • C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe
          "C:\Users\Admin\AppData\Local\Temp\Confirmacao de conta.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:4136

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Confirmacao de conta.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • memory/2236-10-0x0000000007970000-0x0000000007A0C000-memory.dmp

        Filesize

        624KB

      • memory/2236-5-0x0000000004C40000-0x0000000004C4A000-memory.dmp

        Filesize

        40KB

      • memory/2236-11-0x00000000745A0000-0x0000000074D50000-memory.dmp

        Filesize

        7.7MB

      • memory/2236-16-0x00000000745A0000-0x0000000074D50000-memory.dmp

        Filesize

        7.7MB

      • memory/2236-12-0x0000000004DB0000-0x0000000004DC0000-memory.dmp

        Filesize

        64KB

      • memory/2236-6-0x0000000007860000-0x0000000007872000-memory.dmp

        Filesize

        72KB

      • memory/2236-7-0x0000000005F70000-0x0000000005F78000-memory.dmp

        Filesize

        32KB

      • memory/2236-8-0x0000000005F80000-0x0000000005F8A000-memory.dmp

        Filesize

        40KB

      • memory/2236-9-0x0000000005FC0000-0x000000000605C000-memory.dmp

        Filesize

        624KB

      • memory/2236-0-0x0000000000240000-0x0000000000318000-memory.dmp

        Filesize

        864KB

      • memory/2236-3-0x0000000004BA0000-0x0000000004C32000-memory.dmp

        Filesize

        584KB

      • memory/2236-2-0x0000000005070000-0x0000000005614000-memory.dmp

        Filesize

        5.6MB

      • memory/2236-4-0x0000000004DB0000-0x0000000004DC0000-memory.dmp

        Filesize

        64KB

      • memory/2236-1-0x00000000745A0000-0x0000000074D50000-memory.dmp

        Filesize

        7.7MB

      • memory/4136-17-0x00000000745A0000-0x0000000074D50000-memory.dmp

        Filesize

        7.7MB

      • memory/4136-13-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/4136-18-0x0000000004F50000-0x0000000004F60000-memory.dmp

        Filesize

        64KB

      • memory/4136-19-0x0000000004F80000-0x0000000004FE6000-memory.dmp

        Filesize

        408KB

      • memory/4136-20-0x00000000064F0000-0x0000000006540000-memory.dmp

        Filesize

        320KB

      • memory/4136-21-0x00000000745A0000-0x0000000074D50000-memory.dmp

        Filesize

        7.7MB

      • memory/4136-22-0x0000000004F50000-0x0000000004F60000-memory.dmp

        Filesize

        64KB