General

  • Target

    15bee5f27c8e807fca30b704600b5f4ffa67a5fa80d51bb444c42d52c9020cef.exe

  • Size

    751KB

  • Sample

    240229-f2mycafa45

  • MD5

    8a7ea7ff5e5cce2ca107a23aeb40b4e3

  • SHA1

    0fe3cc81e2d4f294d80a8428783a72eb8cd82c6e

  • SHA256

    15bee5f27c8e807fca30b704600b5f4ffa67a5fa80d51bb444c42d52c9020cef

  • SHA512

    37d3e30a2f82484ece8040ac334369bad247b0cbb7c0326f31b046e2f5203823e4ba7c962b1cf2431fa357f07c1e53fff5848aaa88241a8e623d89637d427ab7

  • SSDEEP

    12288:C8S+oGOKcbWAL9bW9ezgqZDKogif+UPJsXf4vIUeVfvGMbvk1RsXS38Mc14hhjwd:RAL9iyga+ogimUmXgRnMY1RRg8hcH

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

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

Targets

    • Target

      15bee5f27c8e807fca30b704600b5f4ffa67a5fa80d51bb444c42d52c9020cef.exe

    • Size

      751KB

    • MD5

      8a7ea7ff5e5cce2ca107a23aeb40b4e3

    • SHA1

      0fe3cc81e2d4f294d80a8428783a72eb8cd82c6e

    • SHA256

      15bee5f27c8e807fca30b704600b5f4ffa67a5fa80d51bb444c42d52c9020cef

    • SHA512

      37d3e30a2f82484ece8040ac334369bad247b0cbb7c0326f31b046e2f5203823e4ba7c962b1cf2431fa357f07c1e53fff5848aaa88241a8e623d89637d427ab7

    • SSDEEP

      12288:C8S+oGOKcbWAL9bW9ezgqZDKogif+UPJsXf4vIUeVfvGMbvk1RsXS38Mc14hhjwd:RAL9iyga+ogimUmXgRnMY1RRg8hcH

    • 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

    • 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