Malicious PDF — malware analysis report

Static analysis result for SHA-256 56b8201410e1e488…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 01:27:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e1172b08fbcb2f861dfa302d47c8fb6d SHA-1: 14b74ceabec14d27b0ae450bd526ed1525d8a773 SHA-256: 56b8201410e1e4882e0119e704dbd43d02a657d4f872999403c4d72ae3715525
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or malware. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt, potentially leveraging embedded JavaScript for redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.co/app/431946152/free-robux-app-game-hack In PDF document text
    • https://www.wcauk.org/uploads/files/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/how-to-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/coin-master-village-4_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/roblox-free-tbc-twitter_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/top-10-best-free-roblox-items_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/how-to-get-robux-and-tix-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/download-roblox-for-blackberry-hack_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://www.wcauk.org/uploads/files/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_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
font_00_sfnt_off00003302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3302 22420 bytes
SHA-256: 8763bc0072abe376744a730a7887b219c229338d9227c40581afd93d30aabe1d
font_01_sfnt_off00006514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6514 18892 bytes
SHA-256: 98799f5422297995f0985cb1c378b21e0f8722881e70436717831cdef5a17d10

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