General

  • Target

    e86d7e7a74ade70a2517322f13057592_JaffaCakes118

  • Size

    373KB

  • Sample

    240918-f88tdsveme

  • MD5

    e86d7e7a74ade70a2517322f13057592

  • SHA1

    afe4d0efbc06f047a449be51acc12d304e8ff19a

  • SHA256

    c3e498526855f562e010a1b734b56dc34a7a055ea16a49d4d511507026dea8ee

  • SHA512

    56fea7f7891be939d7a8b7bece6ed12628048dfa2dcacb7c2bfa47bd8bc46a93a7a19d037e9b5ec2b9645f69e988acb286fc4cdaed13fd6e4bb41e2075c60562

  • SSDEEP

    6144:op9HYQh6PokQQqpiLyI6q3kHHOObJ9qGj6twbzdphFRq9bwrein6wm1jBl5l:oprhEokjqwLd38bHqHwfhFRq9SnlgjT

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.iigcest.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Jab2016@

Targets

    • Target

      SWIFT COPY 24092020_pdf.exe

    • Size

      444KB

    • MD5

      c2ab834e47610c082360d87f4d613c2c

    • SHA1

      6ac56cf22e21f35068a1652af02ee12b115d7341

    • SHA256

      cc0362a0c84cc29c65b62af19019e3a810d69ffc46e5e40b08aedbe333659cd7

    • SHA512

      383a1d3e2c75cb31942eb2a5b33a3b01bb47126f4392362140295468243d8df1c7b0884d54203713a28a657bf3e6152909e2fdd7508df8178f3a24b9239ce3d4

    • SSDEEP

      6144:bLZSBSGmmrpO/iKrDh74Fr1M9oeGIZCauQqpuisS98W74EonWLL7wueU1BkG8:bLZsLUiKdkRtNpuijv4YL7j17S

    • AgentTesla

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

    • Modifies Windows Defender Real-time Protection settings

    • AgentTesla payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • 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.

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks