General

  • Target

    efba2f0fef43c9d866b89e8757e898bd_JaffaCakes118

  • Size

    583KB

  • Sample

    240921-ny81ea1cnn

  • MD5

    efba2f0fef43c9d866b89e8757e898bd

  • SHA1

    e10321ce870752b5a630c56461dc630a6b69a246

  • SHA256

    2ca4f8006b5eddcbf87895299660f90ff6bad708c5b4b5be93d4d430288216f1

  • SHA512

    dd36c21438e6c32e4104e30bf44e0462dab0fe598cb8e21576eca193758e3d04465f7f96d9d557f19a42306a2f1b49252899ea6aa42e7252df330054ed80e5d7

  • SSDEEP

    6144:iVL0nt7DmqF7f3WuBJweg1jtblBdrUGTHLR4XKKKMjDXXSR+AauJMwL0d:cuvf3WuBJylfXt4Xjjg+A6G0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    OGOM12345

Targets

    • Target

      efba2f0fef43c9d866b89e8757e898bd_JaffaCakes118

    • Size

      583KB

    • MD5

      efba2f0fef43c9d866b89e8757e898bd

    • SHA1

      e10321ce870752b5a630c56461dc630a6b69a246

    • SHA256

      2ca4f8006b5eddcbf87895299660f90ff6bad708c5b4b5be93d4d430288216f1

    • SHA512

      dd36c21438e6c32e4104e30bf44e0462dab0fe598cb8e21576eca193758e3d04465f7f96d9d557f19a42306a2f1b49252899ea6aa42e7252df330054ed80e5d7

    • SSDEEP

      6144:iVL0nt7DmqF7f3WuBJweg1jtblBdrUGTHLR4XKKKMjDXXSR+AauJMwL0d:cuvf3WuBJylfXt4Xjjg+A6G0

    • AgentTesla

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

    • AgentTesla payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Checks computer location settings

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

    • Drops startup 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks