General

  • Target

    a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0

  • Size

    982KB

  • Sample

    250114-br2ljavnhk

  • MD5

    f1223e61e7123b96e3d7ac919c32f985

  • SHA1

    98db85562644048cd37596ca66d2b9d8035410c0

  • SHA256

    a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0

  • SHA512

    3f73233e25d1f8bd7cae75a11b3913429928a492ed087fe685e249799f7f9812a7258bf25f16adfc628f42ee6f68e53278159bc571bd94c85094ce9c58f7d420

  • SSDEEP

    12288:V5I0wXiC25YyzNTeO43a9pTpDXSu3LfH30xXgDFiZYKdD+o:XV1wab1DCkowDFi3D+o

Malware Config

Targets

    • Target

      a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0

    • Size

      982KB

    • MD5

      f1223e61e7123b96e3d7ac919c32f985

    • SHA1

      98db85562644048cd37596ca66d2b9d8035410c0

    • SHA256

      a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0

    • SHA512

      3f73233e25d1f8bd7cae75a11b3913429928a492ed087fe685e249799f7f9812a7258bf25f16adfc628f42ee6f68e53278159bc571bd94c85094ce9c58f7d420

    • SSDEEP

      12288:V5I0wXiC25YyzNTeO43a9pTpDXSu3LfH30xXgDFiZYKdD+o:XV1wab1DCkowDFi3D+o

    • AgentTesla

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

    • Agenttesla family

    • AgentTesla payload

    • System Binary Proxy Execution: InstallUtil

      Abuse InstallUtil to proxy execution of malicious code.

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks