General

  • Target

    21da6251b60bdd9a0fcc9c1728d7f63885afeb53185ccef2a96103f3dad144d4

  • Size

    633KB

  • Sample

    230505-wt691seb7w

  • MD5

    407a4475933399d86b822c4ed5a6393b

  • SHA1

    cd060492426d7e749bdfef67b9e75d5d02b6e0ff

  • SHA256

    21da6251b60bdd9a0fcc9c1728d7f63885afeb53185ccef2a96103f3dad144d4

  • SHA512

    504695b98caeb931222a835bc4892af6629dab294c1912bf847ff271935114f8732a69fd36f039b79dc0a9395001489887667e837b04fa9a74a80370ef4805da

  • SSDEEP

    12288:LAwe5SgUJm2XTRRypuQ+WzbkBmP0WhBXz/byKT9x:+5SgcmyQkBcpljb5J

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1611551445:AAFDJ3yQMlB3zXJGib2_TFkq1jedBMj3GTw/sendDocument

Targets

    • Target

      21da6251b60bdd9a0fcc9c1728d7f63885afeb53185ccef2a96103f3dad144d4

    • Size

      633KB

    • MD5

      407a4475933399d86b822c4ed5a6393b

    • SHA1

      cd060492426d7e749bdfef67b9e75d5d02b6e0ff

    • SHA256

      21da6251b60bdd9a0fcc9c1728d7f63885afeb53185ccef2a96103f3dad144d4

    • SHA512

      504695b98caeb931222a835bc4892af6629dab294c1912bf847ff271935114f8732a69fd36f039b79dc0a9395001489887667e837b04fa9a74a80370ef4805da

    • SSDEEP

      12288:LAwe5SgUJm2XTRRypuQ+WzbkBmP0WhBXz/byKT9x:+5SgcmyQkBcpljb5J

    • 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.

    • AgentTesla payload

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks