Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d4f3bb4970a811…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 21:34:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: afb6dce8d1a54d7505842b73e770495f SHA-1: 56ba818ef6d128e37db8ad11d51de1b51fae1ebe SHA-256: 47d4f3bb4970a8115fd219b585ac12d7a1d7e513875e895f0e967457ccd07661
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links and a fake CAPTCHA lure, strongly suggesting a social engineering attempt to redirect users to malicious sites. The primary lure involves 'game hacks' for popular games like Coin Master. While no scripts were directly extracted, the PDF structure and heuristics indicate it's designed to exploit user interest in cheats, likely leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/coin-master-cheats-game-hack PDF link annotation
    • https://letturatarghe.it/images/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • https://letturatarghe.it/images/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdfIn PDF document text
    • https://letturatarghe.it/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/daily-coin-master_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/coin-master_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004893.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4893 28172 bytes
SHA-256: 345858c201a50fe75c7b549ed2caac46b2b75a4bfefb1ceceda77048665ff96d
font_01_sfnt_off00008858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8858 17712 bytes
SHA-256: 0cf37999a32b0b26e6dcf722a916a3c4a254350d50e55584564eaaa0ec63890c

Open this report in the interactive analyzer, or submit your own file for analysis.