General

  • Target

    7705fea607ffc7fe954c7030c4b80ab4_JaffaCakes118

  • Size

    638KB

  • Sample

    240526-2jcwbaee91

  • MD5

    7705fea607ffc7fe954c7030c4b80ab4

  • SHA1

    33c70bf37fc33e6d7f0fe03e03720c24b0c12461

  • SHA256

    ff4ed39c61c2f035b7891a1e3b0302a8a2a68ecd63ff07422f35bc92fc4fd868

  • SHA512

    c360739f80da43ca830a5a7097d3c3e292e607a3a7f92c183e22d8b04ffcd4916aa0ab586f331c1f675dea651cf08b650b2bfc6dc8a1238145abf80e0d51b504

  • SSDEEP

    12288:Ld3SK5wfxKCW7L1rY2b/61yrU2j6ESjROnNqLJuUX0aX8:oaSxk7L15nlSwuJCaM

Malware Config

Targets

    • Target

      PO28466311.exe

    • Size

      1.2MB

    • MD5

      052f8ea1a01cb3a6b7df01bfd3868601

    • SHA1

      2f75dafd4572c02109d275268534f4935babbe4e

    • SHA256

      2c7ac0a31c8828ec11ad0c9dd80f8809fb1248f5c36b6b34d8c9974aa8ecaa06

    • SHA512

      f082bdc3eaa1e0383c274aadb03e6c01e0591020cb4107cd072c80fe24e76afafddc4a535a676269efc2c4d3808d7d09faded812211a8e214dec064c02fefe29

    • SSDEEP

      12288:oS1QbvgWK5WpLzkQgEuWjzikA1SNuD4cFwJEV6Q576QpVu6kxuCj9Rm:hQbvxaWuQgEfzi1DdFwGBdpUxuCjHm

    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger Main payload

    • Checks computer location settings

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

    • 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 user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks