General

  • Target

    b97034ee9c19f446a445db253dc70134.bin.bin

  • Size

    514KB

  • Sample

    230505-xwt8xagd53

  • MD5

    3947f430dbea89593fc3dbd8ea21645e

  • SHA1

    d0f9bdf82b93f7e456fb91c44ff35d928a8858f6

  • SHA256

    e315fa4ed12b9b0f07f7bbd5096a9e31f39ae175fed2981e7bd1eaac28e96bad

  • SHA512

    1b3a7b57ba466f589b2eb3c20d8d96e486be758c6e0fe8949e633b29def7da8de83705d2632fd5acad1e526b6b9a326bb39bbb37f7ad21bc79280cba745bc4e7

  • SSDEEP

    12288:SKu1VjCHjpsxAUDLLYGBkatF8N1mISQ9WSRma/vZe:bu1pCH2v3NkDNklQ9W7Z

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.nereus.cl
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    0uF)jGjrEGiu

Targets

    • Target

      55618071bd4c2f58f8144be8ae2ef40df68f07d7a6cfc5b0e2db1b7f6a57846d.exe

    • Size

      544KB

    • MD5

      b97034ee9c19f446a445db253dc70134

    • SHA1

      32eb65616151e4caba773ed639bf190bc3b24bc5

    • SHA256

      55618071bd4c2f58f8144be8ae2ef40df68f07d7a6cfc5b0e2db1b7f6a57846d

    • SHA512

      632db0d38d66953aa79416f0d79a1b0035563e1d6677aabbe8c570671d8982d3d64c7867b0db7c0d92d6771a6683432c58bd56e903e747511f87f0ef17bead5a

    • SSDEEP

      12288:BwxNs66l2XUDdky8zshY/wY8zQZdgRA27TTTSIU5ynM5fuvR:2eKXUDmyUP4YPZmPTTLUIM5GvR

    • AgentTesla

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

    • Detects Redline Stealer samples

      This rule detects the presence of Redline Stealer samples based on their unique strings.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks