Overview

overview

10

Static

static

3

JaffaCakes...23.exe

windows7-x64

10

JaffaCakes...23.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_20208e178fc9c734f1c83805d3f71b23

  • Size

    60KB

  • Sample

    250223-l1a52stkw6

  • MD5

    20208e178fc9c734f1c83805d3f71b23

  • SHA1

    7a9059de9a4eeec317b7b45df96647cc13d77bd3

  • SHA256

    39ba6d4095e2d701904fd0bd2295c371724293b101d7fae886d6bc21dd5439a8

  • SHA512

    25ffa27328bd4fd69b0be37c59401e92a5e2f2509774e81c847e0a9b77d34788479952a9803e9c83bf5e2ae94d94a4f65b784bafbf80429eaca40008397872e9

  • SSDEEP

    768:zE30e/7tEaWcArSwaydTb0EroSd3QXGsBS4sZFFSUv6GfEK+RsWW2qTN4lvCy2ZL:M+PeXonnUStQXDI4spvVp+N8NECtH3T

Score
10/10
expirobackdoordiscoverypersistence

Malware Config

Targets

    • Target

      JaffaCakes118_20208e178fc9c734f1c83805d3f71b23

    • Size

      60KB

    • MD5

      20208e178fc9c734f1c83805d3f71b23

    • SHA1

      7a9059de9a4eeec317b7b45df96647cc13d77bd3

    • SHA256

      39ba6d4095e2d701904fd0bd2295c371724293b101d7fae886d6bc21dd5439a8

    • SHA512

      25ffa27328bd4fd69b0be37c59401e92a5e2f2509774e81c847e0a9b77d34788479952a9803e9c83bf5e2ae94d94a4f65b784bafbf80429eaca40008397872e9

    • SSDEEP

      768:zE30e/7tEaWcArSwaydTb0EroSd3QXGsBS4sZFFSUv6GfEK+RsWW2qTN4lvCy2ZL:M+PeXonnUStQXDI4spvVp+N8NECtH3T

    Score
    10/10
    expirobackdoordiscoverypersistence

    • Expiro family

      expiro

    • Expiro, m0yv

      Expiro aka m0yv is a multi-functional backdoor written in C++.

      backdoorexpiro

    • Expiro payload

      backdoor

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Modifies WinLogon

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks