General

  • Target

    e9b09a3b90f995ff23ac7c4c2a8b4cc4af7208d86fdd720e5fda80145d7960b8.7z

  • Size

    1.3MB

  • Sample

    241008-cy6z9svaqn

  • MD5

    2b371840bd1144ea74c441006a1259aa

  • SHA1

    242c0a95d787e6a34cfdeb0ceeeab431cae21b4d

  • SHA256

    e9b09a3b90f995ff23ac7c4c2a8b4cc4af7208d86fdd720e5fda80145d7960b8

  • SHA512

    5bfa32bcf03964932273cf40db3aeea0ee13fee690bc018c48a4f2fd472548399fb678eb9dcd555be1d1323ffbad0475ca481907973070b5c7d5631aad0d88a2

  • SSDEEP

    24576:1LyH9xYdRd3ktcFEcEj+ohTPNzE3Zk4AfyJsW1KR3QKf5j91UUkV251XSi3FDPkv:wYdRd3ktcycCVFm3ZkNon2QI3ke1XSiI

Malware Config

Extracted

Credentials

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

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Ref#0503711.exe

    • Size

      1.8MB

    • MD5

      3b2e54913c8b29ce886c8b36f8dd0cfc

    • SHA1

      ff514c4f55dc70f5d1914fcf7118f24fd636e8a2

    • SHA256

      405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84

    • SHA512

      c872c307a060c3ec9b026d24f159447d74de06a5e2e73f5729c9360c5f20b0dc1afe17c870793309f4bddd6c1ec52ce68a1dca9c0b102d089ab48a6db7071c81

    • SSDEEP

      49152:RFXZRd8cSc710RxibZkpQuiQcWpn0JGgKD:/XPmct7uMqn0QD

    • AgentTesla

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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