General

  • Target

    IMG_107_6333.exe

  • Size

    40KB

  • Sample

    250128-mp91nswlfs

  • MD5

    8580fb81393edfa2321b758814726b0b

  • SHA1

    36d60eaafce5304018757f365e5c4507935b4ace

  • SHA256

    c9885c557ad0bbf4ba9d47d3b6efbbd6dfde96fa97d591ebcd4e230b6b21d33a

  • SHA512

    be91a5ce999acf21152d8bd7b0c196bca85c6b879f20042d8677273d515d5865b46543c677b3231f284edaccc087df78721d5ff130ef12af7ca0e921fa29ac5e

  • SSDEEP

    384:ejCRhxEz60TezBfI/Tghhhq6ki2lKxiIiW1sQS+ShjmM6IGBkSlOI:em16NyBfPPF2zInyQS+ST6nkC1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    162.254.34.31
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ABwuRZS5Mjh5

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      IMG_107_6333.exe

    • Size

      40KB

    • MD5

      8580fb81393edfa2321b758814726b0b

    • SHA1

      36d60eaafce5304018757f365e5c4507935b4ace

    • SHA256

      c9885c557ad0bbf4ba9d47d3b6efbbd6dfde96fa97d591ebcd4e230b6b21d33a

    • SHA512

      be91a5ce999acf21152d8bd7b0c196bca85c6b879f20042d8677273d515d5865b46543c677b3231f284edaccc087df78721d5ff130ef12af7ca0e921fa29ac5e

    • SSDEEP

      384:ejCRhxEz60TezBfI/Tghhhq6ki2lKxiIiW1sQS+ShjmM6IGBkSlOI:em16NyBfPPF2zInyQS+ST6nkC1

    • AgentTesla

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

    • Agenttesla family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Drops startup file

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks