Analysis

  • max time kernel
    133s
  • max time network
    110s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    26-01-2021 14:19

General

  • Target

    qm7JU84PFgfqvgs.exe

  • Size

    739KB

  • MD5

    6ded7f3d275435cdd238107cf0343c96

  • SHA1

    0d97584d18e3b3f521a6dff0763086e6ff50bdf6

  • SHA256

    961f7b9bed8edc7f79de3d04f44282b97a4a8e41f329300e827b0c80888d5b5e

  • SHA512

    c57e9f604e8abd79e1fe333b642660555d06af3de4ec68e9ce3d20518458b01272291bfbfead89f7a45954826d5bcfb15f7d8d5cf507959b1c91b17bd53aa831

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cefortem.cat
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Vft284Rpyn

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\qm7JU84PFgfqvgs.exe
    "C:\Users\Admin\AppData\Local\Temp\qm7JU84PFgfqvgs.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\qm7JU84PFgfqvgs.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2000-9-0x00000000004374DE-mapping.dmp

  • memory/2000-8-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2000-10-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/2000-11-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2000-13-0x0000000000380000-0x0000000000381000-memory.dmp

    Filesize

    4KB

  • memory/2000-14-0x0000000000381000-0x0000000000382000-memory.dmp

    Filesize

    4KB

  • memory/2044-2-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/2044-3-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/2044-5-0x0000000004950000-0x0000000004951000-memory.dmp

    Filesize

    4KB

  • memory/2044-6-0x0000000000410000-0x000000000041E000-memory.dmp

    Filesize

    56KB

  • memory/2044-7-0x00000000056F0000-0x000000000579E000-memory.dmp

    Filesize

    696KB