General

  • Target

    SecuriteInfo.com.Heur.25589.9954.xlsx

  • Size

    275KB

  • Sample

    240125-sy682ahgf5

  • MD5

    e108b870cba8e39e516076ca3989372b

  • SHA1

    439fd0bdcf0319994f9b91f28d4f2b2a5bde0874

  • SHA256

    69f40c2f6a4540550f934e0b2f9a354629d3835b30fd13293c2f6a6b97202159

  • SHA512

    710235888d211b49f89d97d2cd32a7ac47922cbe421a3eb0fbb7f50a2b5f2e46236a6b64843cf29e6163c32798b48f46b6e1fca318f8cfc04045f00bf30d244a

  • SSDEEP

    6144:5kunhVY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVLOMI2n1WbMS5Fuhix2c:5tC3bVLOMIg9Y

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      SecuriteInfo.com.Heur.25589.9954.xlsx

    • Size

      275KB

    • MD5

      e108b870cba8e39e516076ca3989372b

    • SHA1

      439fd0bdcf0319994f9b91f28d4f2b2a5bde0874

    • SHA256

      69f40c2f6a4540550f934e0b2f9a354629d3835b30fd13293c2f6a6b97202159

    • SHA512

      710235888d211b49f89d97d2cd32a7ac47922cbe421a3eb0fbb7f50a2b5f2e46236a6b64843cf29e6163c32798b48f46b6e1fca318f8cfc04045f00bf30d244a

    • SSDEEP

      6144:5kunhVY35qAOJl/YrLYz+WrNhZF+E+fgL+0dD8ivSbVLOMI2n1WbMS5Fuhix2c:5tC3bVLOMIg9Y

    • AgentTesla

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

    • Kinsing

      Kinsing is a loader written in Golang.

    • 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.

    • 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