General

  • Target

    d8fc7bd9e20b77c02bed315cc75d85e0_JaffaCakes118

  • Size

    222KB

  • Sample

    240910-y6scqstcpq

  • MD5

    d8fc7bd9e20b77c02bed315cc75d85e0

  • SHA1

    0404ec1a540edfce65bca9dab48c9060b1ddfef3

  • SHA256

    706dffe7787c6025b9855fc714df320be1e52737cc54c84f74b1eb5862e191a8

  • SHA512

    3539c5d1abbbdb0173fd57f098e1ece37e12e24f1ec0f51c6f9972b1752178e3ceec9a137e2760ebf2aeb3b5f2390d7ad1d0b8855adcfc1f49beed929af87d02

  • SSDEEP

    3072:/MHfoGMJ0ERa/UW8+eFuHq7NEwblbCDVmqOfU6VarcwYIYTXAPg2g1IpwDv5r8:k/oG604a/UHQHoqV2ULr6wPgAwDv5Q

Malware Config

Targets

    • Target

      HALKBANK.exe

    • Size

      628KB

    • MD5

      237cf82937b3c324379f1212def19d2e

    • SHA1

      8716ca06800298c5ec280add1ad3be3f0c09d941

    • SHA256

      cdb2c3c7b1e754dbd207b98d12c29ca23ef787e2a64dddc5ebad6e1a3f9683c4

    • SHA512

      9a7f435278f54dfcab8f441e248bf648d4840e781eb05cd9c786e831e5b3a61eb7b0b9c478cc83f17f64ad17ceaf13f12314fca264a896dc383a8f7d02b05dd7

    • SSDEEP

      6144:OvvvU+JPISbmf4y8Y5OHyoEcHHwv00QZXv7/Ylp8bn5etL2r8:uUQxbtrNgpcn5eth

    • 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.

    • System Binary Proxy Execution: Regsvcs/Regasm

      Abuse Regasm to proxy execution of malicious code.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks