General

  • Target

    Purchase order.xls

  • Size

    573KB

  • Sample

    240221-hs8jsscg3y

  • MD5

    2057adda9d066eaf2b27b19c4643fea1

  • SHA1

    41599cc28565373fe49464a4413ec3eaf03356e4

  • SHA256

    1919a1b877651e00acebeae51a55aaf26ba8828ee78bffbe420339cf204545cc

  • SHA512

    e096995223135a5c331f38e55bbd53a03feebe16705383d4d2b7a1eaf015523235e779d87250def268b9e55f37fb50f09d50ebae2dc97a5facb9b5f26a4fa0b5

  • SSDEEP

    12288:VTk6SEXMcbNedomzE23bVGvMIgJWG+/ryf9wbw8oRU:/SSMMednE23bV/cE8z

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7013847015:AAGJ9U6sgMmsBCQ0DNkHT8DYuslAtpiqCbA/

Targets

    • Target

      Purchase order.xls

    • Size

      573KB

    • MD5

      2057adda9d066eaf2b27b19c4643fea1

    • SHA1

      41599cc28565373fe49464a4413ec3eaf03356e4

    • SHA256

      1919a1b877651e00acebeae51a55aaf26ba8828ee78bffbe420339cf204545cc

    • SHA512

      e096995223135a5c331f38e55bbd53a03feebe16705383d4d2b7a1eaf015523235e779d87250def268b9e55f37fb50f09d50ebae2dc97a5facb9b5f26a4fa0b5

    • SSDEEP

      12288:VTk6SEXMcbNedomzE23bVGvMIgJWG+/ryf9wbw8oRU:/SSMMednE23bV/cE8z

    • AgentTesla

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

    • Blocklisted process makes network request

    • Abuses OpenXML format to download file from external location

    • 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.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks