General

  • Target

    Reiven RFQ-04032024.exe

  • Size

    95KB

  • Sample

    240305-jfs41sae99

  • MD5

    8696397420d9ab671ce2c679499232f6

  • SHA1

    61a529e48a063233d712ea559e819c62d9dcbf7d

  • SHA256

    ce8cd744eba1aba5e0833127c89cc56a047b09638714b3086cb707f6d863b9c0

  • SHA512

    d0d7f12c5929e8418920103613ea3d446ca2239ed8f210888bb0d2c6c966368daacebab910d6f2bb6430518ecd7bf2fddbaf2300edea51ac90f5fd36e5ea4187

  • SSDEEP

    1536:L0xpxeL928CGyO7mpUlFpKZqdSWfpwy+Cz7bWXgN2pbiPL8V45xEDsDxhDyhNdi2:0ORSO7mpUlFpKC/+gN2pZOxEDsDT2Ti2

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.ionos.es
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ReparaHogar2013

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Reiven RFQ-04032024.exe

    • Size

      95KB

    • MD5

      8696397420d9ab671ce2c679499232f6

    • SHA1

      61a529e48a063233d712ea559e819c62d9dcbf7d

    • SHA256

      ce8cd744eba1aba5e0833127c89cc56a047b09638714b3086cb707f6d863b9c0

    • SHA512

      d0d7f12c5929e8418920103613ea3d446ca2239ed8f210888bb0d2c6c966368daacebab910d6f2bb6430518ecd7bf2fddbaf2300edea51ac90f5fd36e5ea4187

    • SSDEEP

      1536:L0xpxeL928CGyO7mpUlFpKZqdSWfpwy+Cz7bWXgN2pbiPL8V45xEDsDxhDyhNdi2:0ORSO7mpUlFpKC/+gN2pZOxEDsDT2Ti2

    • AgentTesla

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

    • UAC bypass

    • Windows security bypass

    • Contacts a large (4772) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Checks computer location settings

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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Windows security modification

    • Checks whether UAC is enabled

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • 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 v15

Tasks