Overview

overview

7

Static

static

7

eb6091781b...18.exe

windows7-x64

7

eb6091781b...18.exe

windows10-2004-x64

7

$PLUGINSDI...ig.dll

windows7-x64

3

$PLUGINSDI...ig.dll

windows10-2004-x64

3

$PLUGINSDI...dl.dll

windows7-x64

3

$PLUGINSDI...dl.dll

windows10-2004-x64

3

$PLUGINSDI...el.dll

windows7-x64

7

$PLUGINSDI...el.dll

windows10-2004-x64

7

$PLUGINSDIR/UAC.dll

windows7-x64

3

$PLUGINSDIR/UAC.dll

windows10-2004-x64

3

$PLUGINSDI...ss.dll

windows7-x64

3

$PLUGINSDI...ss.dll

windows10-2004-x64

3

EasyOn.dll

windows7-x64

6

EasyOn.dll

windows10-2004-x64

6

EasyOn.exe

windows7-x64

6

EasyOn.exe

windows10-2004-x64

6

Analysis

  • max time kernel
    143s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/04/2024, 15:23

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General

  • Target
    eb6091781b09ec98d0676d48d4f3bb4f_JaffaCakes118.exe
  • Size 262KB
  • Sample240410-sstezscf94
  • SHA256 a909f01a3d5514c0f4996a1a2d947a91ddbdbd86dd5c3cc820c42e136d53c5ee
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
adwarediscoverypersistencestealerupx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb6091781b09ec98d0676d48d4f3bb4f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb6091781b09ec98d0676d48d4f3bb4f_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Program Files (x86)\EasyOn\EasyOn.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:4936
    • C:\Program Files (x86)\EasyOn\EasyOn.exe
      "C:\Program Files (x86)\EasyOn\EasyOn.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3388
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\EasyOn\EasyOn.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:2628
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\system32\explorer.exe
      2⤵
      • Deletes itself
      PID:1364
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3704 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5100

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          EasyOn.dll
          • Path C:\Program Files (x86)\EasyOn\EasyOn.dll
          • Size 126KB
          • SHA256 41321b02a4922ab9911e340c190eead9e17d5f56590921953b0658958e1bfba8
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          EasyOn.exe
          • Path C:\Program Files (x86)\EasyOn\EasyOn.exe
          • Size 38KB
          • SHA256 9bf1cea5efcecb3dd7f28c3d6359037807b3379aeb82f154c27e1f84c3286f3a
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          IpConfig.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsjF0F.tmp\IpConfig.dll
          • Size 114KB
          • SHA256 ec0f85f8a9d6b77081ba0103f967ef6705b547bf27bcd866d77ac909d21a1e08
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          NSISdl.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsjF0F.tmp\NSISdl.dll
          • Size 14KB
          • SHA256 dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          SelfDel.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsjF0F.tmp\SelfDel.dll
          • Size 4KB
          • SHA256 281c39b733579e031c62bdd247b41543ece1fe3bd6eda26fc8ad474b10f33101
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          UAC.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsjF0F.tmp\UAC.dll
          • Size 13KB
          • SHA256 c24c005daa7f5578c4372b38d1be6be5e27ef3ba2cdb9b67fee15cac406eba62
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          nsProcess.dll
          • Path C:\Users\Admin\AppData\Local\Temp\nsjF0F.tmp\nsProcess.dll
          • Size 4KB
          • SHA256 95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89
          • MD5 SHA1 SHA512
          Submit Download

          memory/2748-32-0x0000000002F60000-0x0000000002F86000-memory.dmp
          Download

          memory/2748-50-0x00000000748F0000-0x00000000748F9000-memory.dmp
          Download