Overview

overview

8

Static

static

3

a73948607f...18.exe

windows7-x64

8

a73948607f...18.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    131s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/08/2024, 15:38

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General

  • Target

    a73948607f9c9d7c83596ab2980b02d0_JaffaCakes118.exe

  • Size

    1.7MB

  • MD5

    a73948607f9c9d7c83596ab2980b02d0

  • SHA1

    6c54650cc278d26489ff9cce1e3fc0fc82f874e3

  • SHA256

    90347ba618926f40d91645a46ed4edc3fd31d21b7fbb3b9d27d743d1b8235569

  • SHA512

    80c0dd69727f82b9041a7869e58e36a1845b6b35c8faeddf70d2fed56a00702b7ba9bf7a193769d23a46e00e60de8ee4d5a03a6787abd6af65337892607a012c

  • SSDEEP

    24576:vtxota4WEZDsi2SKxlNGTbSSy2EsLRIX2zsd0BDnF1+7gkHcjJw+1OsTAzyMH82Q:vt+tXhI2EsLqy4gk+T11TAxH8NuEp9

Score
8/10
discoveryevasionpersistence

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Disables Task Manager via registry modification
    evasion
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
    persistence
  • Drops file in System32 directory 6 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 29 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 2 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\a73948607f9c9d7c83596ab2980b02d0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a73948607f9c9d7c83596ab2980b02d0_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Modifies WinLogon
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4764
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3592
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:3432
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4028
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133684691289210287.txt
    Filesize

    75KB

    MD5

    aec6f28adc99a3cf50541a0376f4fa7e

    SHA1

    e8306c91da4fd3a64aa992fd5dedd6afac776798

    SHA256

    33d4a01618ef5544f9efc6485b94bd6981d6f50bbbc9d4c1ef7c540f701eba53

    SHA512

    b8469b8b9cbeefa4f247165a0fbfe8873bdbb88f77c790bde00609b07a14053946ca3edeb19c392bca00d6b1adbdb8cddbaad5ad1d118072d2867634e01af7fc

    Download Submit

  • memory/3592-7-0x0000000004B10000-0x0000000004B11000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3708-8-0x000001D1A1300000-0x000001D1A1400000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/3708-13-0x000001D1A2420000-0x000001D1A2440000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3708-39-0x000001D1A21E0000-0x000001D1A2200000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3708-44-0x000001D1A27F0000-0x000001D1A2810000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4764-0-0x0000000002570000-0x0000000002571000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4764-1-0x0000000000400000-0x00000000005C5000-memory.dmp

    Filesize

    1.8MB

    Download