Malicious PDF — malware analysis report

Static analysis result for SHA-256 a70bd179357b9897…

MALICIOUS

PDF

44.9 KB Created: 2021-06-04 05:03:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d67bee5967b33f698f0c2a289cd72dcd SHA-1: 6ae3cd06e6dc4a7bd3c07437f962bc680712113e SHA-256: a70bd179357b989722543ec405786aae3edbbae745f332cabb03b25b9c984843
122 Risk Score

Malware Insights

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

This PDF document employs a fake CAPTCHA lure to deceive users into clicking a link. The primary link, https://netcdn.online/app/406889139/coin-master-free-spins-link-today-instagram-game-hack, redirects to a game hack generator, suggesting a social engineering tactic to lure victims. While no scripts were directly extracted, the PDF structure and embedded links indicate a potential for exploitation or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-free-spins-link-today-instagram-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/pokemon-go-free-walk-android_GM1094591345.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-cp_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/oprewards-login_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-spins-usa-2021_GM406889139.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_004_off000050ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50CE 25376 bytes
SHA-256: 9e97e35ecfaa3545be9e6aaa1da4749092f8497c10fac60ed0216668233c0c2f
font_01_sfnt_off00008aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAF 18960 bytes
SHA-256: c3cae131f36bdfe9c813bd150295f39ca0ceeabf3546a2df254cc03f93d9c6e3

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