General

  • Target

    ORDERN.F1676.23.xls

  • Size

    392KB

  • Sample

    231205-vg7vcadc69

  • MD5

    3408974acb99e7eb86e75d116d3cbe08

  • SHA1

    1d4e5df1f326f6239038b4631d3041f8c8bce8b0

  • SHA256

    ba24230fc982ae4d2ef597abf179e4cdebce6cbed76ea929a636821309d1e29f

  • SHA512

    40c04a8e8c0232fefb623bd845597f30f0cca6ba34fe041a22d14234efe55a25b1d1ad4b9ef753fe641ff293477ff943443256bee2c00b8c2a51062dab6db2d6

  • SSDEEP

    6144:Gn1m9kdbvPpeZkVl3S4qQygZpuUXyRcVlgTf+0W8r8NR/+zTlsvsgYtZlTTDyrh:GOeLtni5XgZTyqVGruU5lTSrh

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      ORDERN.F1676.23.xls

    • Size

      392KB

    • MD5

      3408974acb99e7eb86e75d116d3cbe08

    • SHA1

      1d4e5df1f326f6239038b4631d3041f8c8bce8b0

    • SHA256

      ba24230fc982ae4d2ef597abf179e4cdebce6cbed76ea929a636821309d1e29f

    • SHA512

      40c04a8e8c0232fefb623bd845597f30f0cca6ba34fe041a22d14234efe55a25b1d1ad4b9ef753fe641ff293477ff943443256bee2c00b8c2a51062dab6db2d6

    • SSDEEP

      6144:Gn1m9kdbvPpeZkVl3S4qQygZpuUXyRcVlgTf+0W8r8NR/+zTlsvsgYtZlTTDyrh:GOeLtni5XgZTyqVGruU5lTSrh

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Abuses OpenXML format to download file from external location

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks