General

  • Target

    4db55b2df58083e75c9471d2b79e1f9edf9491f423313b4e125349fed3507227.doc

  • Size

    1011KB

  • Sample

    240916-bl3awasbqj

  • MD5

    4d6c7b93c085f50060e99dba63ef5e27

  • SHA1

    f67de698fd8eb036b8e83211880d1c449fe6f7e2

  • SHA256

    4db55b2df58083e75c9471d2b79e1f9edf9491f423313b4e125349fed3507227

  • SHA512

    e7f1c409b67a4070c16078037ecd1d2992543918bf728508bf610a2c1f3626ffbc0ea5efae92798765269f65a39ce7c11078a496f900e46df1a2b77eb21c3361

  • SSDEEP

    6144:6wAYwA9WMyBtBWojqJnnR30lOGXdUz4+2:Bu

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      4db55b2df58083e75c9471d2b79e1f9edf9491f423313b4e125349fed3507227.doc

    • Size

      1011KB

    • MD5

      4d6c7b93c085f50060e99dba63ef5e27

    • SHA1

      f67de698fd8eb036b8e83211880d1c449fe6f7e2

    • SHA256

      4db55b2df58083e75c9471d2b79e1f9edf9491f423313b4e125349fed3507227

    • SHA512

      e7f1c409b67a4070c16078037ecd1d2992543918bf728508bf610a2c1f3626ffbc0ea5efae92798765269f65a39ce7c11078a496f900e46df1a2b77eb21c3361

    • SSDEEP

      6144:6wAYwA9WMyBtBWojqJnnR30lOGXdUz4+2:Bu

    • AgentTesla

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks