General

  • Target

    b4482bf455efe7ffcc19b8bf1aadf052.bin

  • Size

    618KB

  • Sample

    240326-edfzfsfe8x

  • MD5

    39edd5d6e44202641f13bbf77985619a

  • SHA1

    3de58c8cfc136dd52d31f763700cb07ec60b8474

  • SHA256

    b83d422945514f51d22148aec224b34221cd7d11e78a60e64402baa629748005

  • SHA512

    3c0036527b2193a3e226990ddc437a76e15a9ece19cc2ab4b89967a1ca0a512df0dce3b89736c15cfd5ea7196f560baaf8937fc05baf33d7de77351b6165d1a9

  • SSDEEP

    12288:ErFr8ym2qnegVD/KVUKmKo/JhfnsGc9kyOOUR0G+m:ErF4ym5vD4mKMpc9Gpxt

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.commtechtrading.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ;elP@ho2Np 7[

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      New_PO #1783919…22 RFQ Amended.exe

    • Size

      637KB

    • MD5

      fd919aa5b7aea5c2a5c35f10fd20f513

    • SHA1

      1c83c1eaba12327c4f181395d33a5d008219c181

    • SHA256

      f3c4c44285b5439a4c608e38beb95ada32d34f68b83ed9795649185754d9d5bd

    • SHA512

      66481b67a8a4905f9f8363af7e42496d8d8853f62c99bb2972c53206b3b7752858c18c5d6cb71456f782378ba2309093aaaa2c17bce1666db3db7759a2f5dddc

    • SSDEEP

      12288:5Cs3/5ilX5GUEKAo561YL85U8k5vFF9CbppQxYi46+08TOeZS:kwBgpGUEBWg5UNmbppQ9JMTxZ

    • AgentTesla

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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks