General

  • Target

    58635fc3dd9ce17670b8b31d4d3d5e8b271e1a9b21d89e565c685c1d5648a78f

  • Size

    740KB

  • Sample

    250122-b4hzysskgn

  • MD5

    2e4d3c7ad4b3cdb5771e46bf5d03a05a

  • SHA1

    26b779f869d4226c7e806775cca764043aa63103

  • SHA256

    58635fc3dd9ce17670b8b31d4d3d5e8b271e1a9b21d89e565c685c1d5648a78f

  • SHA512

    6919e4e00e45bc423fb2dedabc9874965e22ef44a498df1fb13bc0eb846a000366669d93d40e05f8b2b0fc02802b59101f65f743c2f27c87262a174cc123c4e8

  • SSDEEP

    12288:bfG4O5q7wxnFFPB4szk2T9puLKFzfQ4OELa6pmsvda/9PF1XC7Cs/CDYS0p07Ekg:u48xnFFPBxX0Leu6phOFS/CES0pkYh

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://s4.serv00.com
  • Port:
    21
  • Username:
    f2241_evica
  • Password:
    Doll280@@

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    s4.serv00.com
  • Port:
    21
  • Username:
    f2241_evica
  • Password:
    Doll280@@

Targets

    • Target

      Pre Alert D-N 423810511 & 463825012/Pre Alert D-N 423810511 & 463825012.scr

    • Size

      1.7MB

    • MD5

      b80331ab84fb85129717d5d846097bdb

    • SHA1

      cee98d946b4dd163997031702718aaeace697b6c

    • SHA256

      45717708e1d13150abc0d57e9c014443649b4e50243dc3409dda599cfcb2f4e0

    • SHA512

      5e8f3173a92dae236f5c9529aca481c3875cb227c859d686308ab1edac416cd5a55acc4bee83fa293dfd71937850dea000dbdc6c0605de0dc48a1eaea855bc28

    • SSDEEP

      24576:ASexfdr+bRvWH/i+vKzm3EEExkXq7TYA2rQtlHPI47s:dLReHaol0QQB

    • AgentTesla

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

    • Agenttesla family

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks