Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-09-2024 12:01

General

  • Target

    fe7c13445868482b63e1ae71bca9d150_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    fe7c13445868482b63e1ae71bca9d150

  • SHA1

    78111d52ba0215bb531d487bc6e9a218ea768377

  • SHA256

    b6b855bda533fefd81c9a7ca8929e52b1b79be7b5e4c4d9fb494392a2c4d8db3

  • SHA512

    c1a2bc27e1381f6ed142ffb8a6cdb0006a9161433dbb9222f83ec407cf0bb5510f9986108b4e96c4a3d0dd30659cc48baec96b9ca962082c64c0fcbcc8c0879c

  • SSDEEP

    24576:7fCMQaXIX9yF/x26XE1kQSEIRL3tEI0mhYBsULm075IKIG1Pj5+rWGAHP:7ozMP2kGkZBqIB0tIKIvr5AHP

Malware Config

Signatures

  • Detects Echelon Stealer payload 2 IoCs
  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe7c13445868482b63e1ae71bca9d150_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe7c13445868482b63e1ae71bca9d150_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\ProgramData\Decoder.exe
      "C:\ProgramData\Decoder.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2248
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:108
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3044
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE8F8.tmp.cmd""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2176
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {89F2BE02-007E-4D64-A310-7AC07A55414A} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:530128
    • C:\systems32_bit\systems32.exe
      \systems32_bit\systems32.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:531976
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:532324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Decoder.exe

    Filesize

    39KB

    MD5

    e753a9a4c3a393d9eccc31e5c6aded66

    SHA1

    5501ae71598925711dbee54f6ee1c827dd01d845

    SHA256

    52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

    SHA512

    ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

  • C:\Users\Admin\AppData\Local\Temp\.cmd

    Filesize

    28B

    MD5

    217407484aac2673214337def8886072

    SHA1

    0f8c4c94064ce1f7538c43987feb5bb2d7fec0c6

    SHA256

    467c28ed423f513128575b1c8c6674ee5671096ff1b14bc4c32deebd89fc1797

    SHA512

    8466383a1cb71ea8b049548fd5a41aaf01c0423743b886cd3cb5007f66bff87d8d5cfa67344451f4490c8f26e4ebf9e306075d5cfc655dc62f0813a456cf1330

  • C:\Users\Admin\AppData\Local\Temp\tmpE8F8.tmp.cmd

    Filesize

    131B

    MD5

    98ba29bc7736526bc2d2f1b1a6242ee1

    SHA1

    ba8cb85369110ffbcc40c6f513df8d7b9a43b228

    SHA256

    02cfdd2469066a20296182990c7f969b4c2d964e094d00d6e9515907dd2739c9

    SHA512

    29faa76fea2edb6fa9113bac8602571ec393ba989851db4f111e9b5e1bebeac36aa2fd9bcaef08931c5d82f92914ea20234ca1fa918d29afc8f0c665101e1a87

  • memory/2588-28-0x0000000000040000-0x0000000000050000-memory.dmp

    Filesize

    64KB

  • memory/2704-0-0x00000000002B0000-0x00000000006FE000-memory.dmp

    Filesize

    4.3MB

  • memory/2704-1-0x000000007424E000-0x000000007424F000-memory.dmp

    Filesize

    4KB

  • memory/2704-2-0x00000000002B0000-0x00000000006FE000-memory.dmp

    Filesize

    4.3MB

  • memory/2704-3-0x0000000003310000-0x0000000003386000-memory.dmp

    Filesize

    472KB

  • memory/2704-4-0x0000000074240000-0x000000007492E000-memory.dmp

    Filesize

    6.9MB

  • memory/2704-26-0x0000000074240000-0x000000007492E000-memory.dmp

    Filesize

    6.9MB

  • memory/2704-24-0x00000000002B0000-0x00000000006FE000-memory.dmp

    Filesize

    4.3MB

  • memory/531976-36-0x0000000000C70000-0x0000000000C80000-memory.dmp

    Filesize

    64KB