General

  • Target

    7d1421b29612772087be84ddc9eb2ff08c282f495007ab6b16bee6bc3e64d11c.exe

  • Size

    740KB

  • Sample

    240228-vbj64agg99

  • MD5

    c2f0dde9746a766af0669a72789fb9d8

  • SHA1

    bacf7968140e7659fb8fa8297f141f2f5074fa19

  • SHA256

    7d1421b29612772087be84ddc9eb2ff08c282f495007ab6b16bee6bc3e64d11c

  • SHA512

    78f2f1c180d9d2e88f291d42d9e1ee9bdc83839dc4ac28054c4a8da695432b0e310dc11282eb38016716ce4da27b9d0b84761b53f364e3145fc5a2f8e2ab7466

  • SSDEEP

    12288:12nZaz5Ujd53LlvrT50BGIRrR8MXxU6JMbhVdwQ1t+kSmpTT+oGUoU3VFzgz:12n8KB5IGo876qbhVx1tKmpCUp3TU

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.mercuresurabaya.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    COM&qS[LeyKQ

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.mercuresurabaya.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    COM&qS[LeyKQ

Targets

    • Target

      7d1421b29612772087be84ddc9eb2ff08c282f495007ab6b16bee6bc3e64d11c.exe

    • Size

      740KB

    • MD5

      c2f0dde9746a766af0669a72789fb9d8

    • SHA1

      bacf7968140e7659fb8fa8297f141f2f5074fa19

    • SHA256

      7d1421b29612772087be84ddc9eb2ff08c282f495007ab6b16bee6bc3e64d11c

    • SHA512

      78f2f1c180d9d2e88f291d42d9e1ee9bdc83839dc4ac28054c4a8da695432b0e310dc11282eb38016716ce4da27b9d0b84761b53f364e3145fc5a2f8e2ab7466

    • SSDEEP

      12288:12nZaz5Ujd53LlvrT50BGIRrR8MXxU6JMbhVdwQ1t+kSmpTT+oGUoU3VFzgz:12n8KB5IGo876qbhVx1tKmpCUp3TU

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks