Overview

overview

10

Static

static

3

bec704fd9c...18.exe

windows7-x64

8

bec704fd9c...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    129s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 14:20

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General

  • Target

    bec704fd9c74a1fa792bcc7f8952a740_JaffaCakes118.exe

  • Size

    176KB

  • MD5

    bec704fd9c74a1fa792bcc7f8952a740

  • SHA1

    9fbbc8bd8b4f7d493b5b8a86cddb106cb082d02d

  • SHA256

    317c67a7cb21efecae972b2e74d5bddaa5d19f3db0ad094b64b6225df21b2881

  • SHA512

    20a834ae27f8f81017eed7e5de40a3103d5884f205d1f18c7dba25e02a58c7aca0c742533c7ad8cb69122d0f458f54f7061e29ff00adb7c89c8a47bd9ad9d072

  • SSDEEP

    3072:DXzv+WutGMFzS7f6nc46WmiJQm7Uj6iJez3YQ+pJza2qQwyU1kADDVi4H:3L0/gCPxrJAAzIpZa2K11i4H

Score
10/10
discoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
    persistence
  • 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
  • Drops file in Drivers directory 1 IoCs
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 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 64 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 18 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 63 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 5 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\bec704fd9c74a1fa792bcc7f8952a740_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bec704fd9c74a1fa792bcc7f8952a740_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Looks for VMWare Tools registry key
    • Checks computer location settings
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Windows\SysWOW64\wbem\WMIC.exe
      "C:\Windows\System32\wbem\WMIC.exe" path win32_terminalservicesetting where (__Class!="") call setallowtsconnections 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4108
  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:544
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4052
    • 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:428
  • 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:4412
  • 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:4436
  • C:\Windows\system32\WerFault.exe
    "C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20240824-1421.dmp
    1⤵
      PID:1540

    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\AppCache133689828892862385.txt
      Filesize

      75KB

      MD5

      32119a5d63dee3a9f8d7a7ebfc5b29f7

      SHA1

      ae98b13f9ffaa5c9f009d31eab856eba106a913e

      SHA256

      4cb1245a7ea0a2b27b0c25cf24587dd16a07f42c32e4b1c4d660ade0978b0831

      SHA512

      1ecea3c93ff9454695ed3991f93ee4eff8aaff3e6f64151cba498d6fa49956cc7ab5cdde448cc3973065e7d8e51174222396e9fecea43bafba5a1ef0b4bb23bf

      Download Submit

    • C:\Windows\SysWOW64\nvaux32.dll
      Filesize

      284KB

      MD5

      bffd3a1052b19e013296c7dcba18a998

      SHA1

      40dbf82e41328fd42f35e3832867d5b3c05ad10b

      SHA256

      ce4707ba0d1488b80bc6870a7a5839225bb7bd043b9d000190916335e7d14688

      SHA512

      ecc3ed8ad7b094628773392cc727ee4d6a39dcc3900781ff09ce6c2c63a0303384609595fd9c6f5e2d1148d970ba6f51574f4f2f521bf7d018aaab5f75f8a6e5

      Download Submit

    • memory/428-82-0x0000000004300000-0x0000000004301000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2812-20-0x0000000000401000-0x000000000042D000-memory.dmp

      Filesize

      176KB

      Download

    • memory/2812-59-0x0000000002B40000-0x0000000002B49000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2812-4-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

      Download

    • memory/2812-0-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

      Download

    • memory/2812-21-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

      Download

    • memory/2812-25-0x0000000002830000-0x0000000002844000-memory.dmp

      Filesize

      80KB

      Download

    • memory/2812-31-0x0000000002850000-0x0000000002857000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2812-42-0x00000000029C0000-0x00000000029C9000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2812-37-0x00000000029A0000-0x00000000029B4000-memory.dmp

      Filesize

      80KB

      Download

    • memory/2812-48-0x00000000029D0000-0x00000000029D9000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2812-54-0x0000000002B40000-0x0000000002B49000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2812-6-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

      Download

    • memory/2812-60-0x0000000002B40000-0x0000000002B49000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2812-61-0x0000000002830000-0x0000000002844000-memory.dmp

      Filesize

      80KB

      Download

    • memory/2812-64-0x0000000010000000-0x0000000010047000-memory.dmp

      Filesize

      284KB

      Download

    • memory/2812-2-0x0000000000400000-0x0000000000456000-memory.dmp

      Filesize

      344KB

      Download

    • memory/2812-1-0x0000000000401000-0x000000000042D000-memory.dmp

      Filesize

      176KB

      Download

    • memory/4436-92-0x000001B35E060000-0x000001B35E080000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4436-120-0x000001B35E470000-0x000001B35E490000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4436-89-0x000001B35E0A0000-0x000001B35E0C0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4436-84-0x000001B35CF40000-0x000001B35D040000-memory.dmp

      Filesize

      1024KB

      Download