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General

  • Target

    326068aa434690c190e1784ac4eef5198e550e41b7189738879ed042ed97e732.exe

  • Size

    711KB

  • Sample

    240222-ggbj9adc57

  • MD5

    672ff72e4c953163d29662a9e349a2b2

  • SHA1

    ed30eff3a33dba1831aa311329574e3a7987ea15

  • SHA256

    326068aa434690c190e1784ac4eef5198e550e41b7189738879ed042ed97e732

  • SHA512

    18558af027a861839cb32a3d1a4df6fca196f2cd2598d48e3b48235e90d434511bf3d9393fbd00ded8e6fce83826dab70ff89006bba59d6fc3758e032d8f11bb

  • SSDEEP

    12288:SOg3KLpQOSpMVy1yuSLK8MRFKT/9tlxeJSUFYCmf0WJHtnQ0R0MuC2iN:jwKLpQO6MAInY8BxeJnFY+2ZOMuC1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    box.flytach-tw.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Daddyhandsome@1234

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      326068aa434690c190e1784ac4eef5198e550e41b7189738879ed042ed97e732.exe

    • Size

      711KB

    • MD5

      672ff72e4c953163d29662a9e349a2b2

    • SHA1

      ed30eff3a33dba1831aa311329574e3a7987ea15

    • SHA256

      326068aa434690c190e1784ac4eef5198e550e41b7189738879ed042ed97e732

    • SHA512

      18558af027a861839cb32a3d1a4df6fca196f2cd2598d48e3b48235e90d434511bf3d9393fbd00ded8e6fce83826dab70ff89006bba59d6fc3758e032d8f11bb

    • SSDEEP

      12288:SOg3KLpQOSpMVy1yuSLK8MRFKT/9tlxeJSUFYCmf0WJHtnQ0R0MuC2iN:jwKLpQO6MAInY8BxeJnFY+2ZOMuC1

    • 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 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

    • 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