Overview

overview

7

Static

static

3

1bc877ccda...18.exe

windows7-x64

7

1bc877ccda...18.exe

windows10-2004-x64

7

background.html

windows7-x64

1

background.html

windows10-2004-x64

1

ci.bg.pack.js

windows7-x64

3

ci.bg.pack.js

windows10-2004-x64

3

ci.browser.helper.js

windows7-x64

3

ci.browser.helper.js

windows10-2004-x64

3

ci.content.pack.js

windows7-x64

3

ci.content.pack.js

windows10-2004-x64

3

content.js

windows7-x64

3

content.js

windows10-2004-x64

3

jquery-1.9.1.min.js

windows7-x64

3

jquery-1.9.1.min.js

windows10-2004-x64

3

jquery.uuid.js

windows7-x64

3

jquery.uuid.js

windows10-2004-x64

3

mz/background.js

windows7-x64

3

mz/background.js

windows10-2004-x64

3

mz/content.js

windows7-x64

3

mz/content.js

windows10-2004-x64

3

popup.js

windows7-x64

3

popup.js

windows10-2004-x64

3

$APPDATA/S...ll.exe

windows7-x64

1

$APPDATA/S...ll.exe

windows10-2004-x64

1

$PLUGINSDI...nz.dll

windows7-x64

3

$PLUGINSDI...nz.dll

windows10-2004-x64

3

chrome/con...d.html

windows7-x64

1

chrome/con...d.html

windows10-2004-x64

1

chrome/con...fig.js

windows7-x64

3

chrome/con...fig.js

windows10-2004-x64

3

chrome/con...ent.js

windows7-x64

3

chrome/con...ent.js

windows10-2004-x64

3

Analysis

  • max time kernel
    136s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/05/2024, 09:13

Sharing

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General

  • Target
    1bc877ccdae6e341b8a3ef1e3507be67_JaffaCakes118.exe
  • Size 2.3MB
  • Sample240506-k65feaad75
  • SHA256 04a484c01214c519221232364f1b99e4aff0761a6fe9c2cfcbf0c84a246a1689
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
adwarediscoverypersistencespywarestealer

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 10 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Registers COM server for autorun 1 TTPs 6 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
  • Drops Chrome extension 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

    stealeradware
  • Drops file in Program Files directory 21 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
    installer
  • Kills process with taskkill 3 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1bc877ccdae6e341b8a3ef1e3507be67_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1bc877ccdae6e341b8a3ef1e3507be67_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\Temp\SpecialSavings.exe
      SpecialSavings.exe /S
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\system32\taskkill.exe" /F /IM PropertySync.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4384
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\system32\taskkill.exe" /F /IM BackgroundHost.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2292
      • C:\Windows\SysWOW64\taskkill.exe
        "C:\Windows\system32\taskkill.exe" /F /IM BackgroundHost64.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2768
      • C:\Program Files (x86)\specialsavings\BackgroundHost.exe
        "C:\Program Files (x86)\specialsavings\BackgroundHost.exe" /RegServer
        3⤵
        • Executes dropped EXE
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1200
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\specialsavings\ScriptHost.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:2224
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\specialsavings\ButtonSite.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:5004
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\specialsavings\AddonsFramework.Typelib.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2876
      • C:\Program Files (x86)\specialsavings\BackgroundHost64.exe
        "C:\Program Files (x86)\specialsavings\BackgroundHost64.exe" /RegServer
        3⤵
        • Executes dropped EXE
        • Registers COM server for autorun
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1664
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\specialsavings\ButtonSite64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4292
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\specialsavings\ButtonSite64.dll"
          4⤵
          • Loads dropped DLL
          • Registers COM server for autorun
          • Modifies registry class
          PID:3084
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\specialsavings\AddonsFramework.Typelib.dll"
        3⤵
        • Loads dropped DLL
        PID:2236
    • C:\Users\Admin\AppData\Local\Temp\install_helper.exe
      install_helper.exe {938958E8-355C-49FF-92B0-53C1B87ACEA9}
      2⤵
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      PID:3672
    • C:\Users\Admin\AppData\Roaming\SpecialSavings\chrome_install.exe
      chrome_install.exe "C:\Users\Admin\AppData\Roaming\SpecialSavings\SpecialSavings.crx" bfcpnihmbfoaeoakalclfalkdepgiaje
      2⤵
      • Executes dropped EXE
      • Drops Chrome extension
      • Suspicious behavior: EnumeratesProcesses
      PID:4944
    • C:\Users\Admin\AppData\Local\Temp\install_helper.exe
      install_helper.exe "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/oawm14wc.Admin\Extensions\[email protected]\install.rdf" app-profile
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:3620

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        AddonsFramework.Typelib.dll
        • Path C:\Program Files (x86)\specialsavings\AddonsFramework.Typelib.dll
        • Size 84KB
        • SHA256 58530b53c1b036a15976268e8781977a6e1afceb86730eca1a90903a0a73bef2
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        BackgroundHost.exe
        • Path C:\Program Files (x86)\specialsavings\BackgroundHost.exe
        • Size 584KB
        • SHA256 e93d5e99dd6cc97c43012d092516eb581280d4410d9c760432b39920c32180dd
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        BackgroundHost64.exe
        • Path C:\Program Files (x86)\specialsavings\BackgroundHost64.exe
        • Size 447KB
        • SHA256 d78b3249933f4810bf7835b362568a42afeef773a307b964e90ba6d5a09fe372
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ButtonSite.dll
        • Path C:\Program Files (x86)\specialsavings\ButtonSite.dll
        • Size 326KB
        • SHA256 967ca12fa5fdfdaae83d0d319ce9f961f1c918bbe6559c158e956c99bb4af527
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ButtonSite64.dll
        • Path C:\Program Files (x86)\specialsavings\ButtonSite64.dll
        • Size 323KB
        • SHA256 4801d103997383998ef128217938b786e7e645f2353ccc5a419ec4907877bd8a
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ScriptHost.dll
        • Path C:\Program Files (x86)\specialsavings\ScriptHost.dll
        • Size 373KB
        • SHA256 4f0cb78047456f9fe345303a32f9bc6d2b16ef2e7241e9868d83ba480c26d89f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        config.xml
        • Path C:\Program Files (x86)\specialsavings\config.xml
        • Size 794B
        • SHA256 f5b8e26bb93ca1f9030b3f840e92df2a0508adbd69b7c464fa3bf1aaec5cda64
        • MD5 SHA1 SHA512
        Submit Download

        manifest.json
        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\bfcpnihmbfoaeoakalclfalkdepgiaje\2.0.0.1\manifest.json
        • Size 1KB
        • SHA256 e28e5c405fe14eb7b221d38616a54a10b30cbcc670568ceafacfefed0eb799c6
        • MD5 SHA1 SHA512
        Submit Download

        install_helper.exe
        • Path C:\Users\Admin\AppData\Local\Temp\install_helper.exe
        • Size 564KB
        • SHA256 cb77ca5b69283cfbf26e33d8ffb6ca660d73fcd03b76a34be79b03c8e6f523c3
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsh329A.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        UAC.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsh329A.tmp\UAC.dll
        • Size 13KB
        • SHA256 c24c005daa7f5578c4372b38d1be6be5e27ef3ba2cdb9b67fee15cac406eba62
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        nsisunz.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nso379B.tmp\nsisunz.dll
        • Size 88KB
        • SHA256 c31b590cba443de87f0f4a81712f0883ac3b506f3868759d918d9a81f84ea922
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        specialsavings.exe
        • Path C:\Users\Admin\AppData\Local\Temp\specialsavings.exe
        • Size 1013KB
        • SHA256 f334a60acf4122dd88458219f26c3baaf014c3ad423133f0a5c67224e2f285ba
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        install.rdf
        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\oawm14wc.Admin\Extensions\[email protected]\install.rdf
        • Size 1KB
        • SHA256 b69efca1f9a0bdc438dc33d14af4c585b36b10cd4ecd6a1117ab3605a9acb2d5
        • MD5 SHA1 SHA512
        Submit Download

        SpecialSavings.crx
        • Path C:\Users\Admin\AppData\Roaming\SpecialSavings\SpecialSavings.crx
        • Size 69KB
        • SHA256 59164dbb8a7dede962f647734b455ad933c31a2f1f3193f5b0e16eb02d08c93e
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        chrome_install.exe
        • Path C:\Users\Admin\AppData\Roaming\SpecialSavings\chrome_install.exe
        • Size 1.1MB
        • SHA256 0a7691f82e885a2ecca874524da7e605de3a183a153b578c5e936236432b8dc8
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download