Malicious PDF — malware analysis report

Static analysis result for SHA-256 52607372d6dfd561…

MALICIOUS

PDF

44.9 KB Created: 2021-06-11 01:06:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bb71078e6b1d8fa4d4b143139d14bb2e SHA-1: 6b5b49904ab88a7d81f5ae8f7fcd078da9f575b1 SHA-256: 52607372d6dfd5613fdca9448e0c33e259b0afcc1362e936a119d27389302fc9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' or 'free currency' lures. The primary link identified is https://netcdn.tw/app/431946152/how-to-hack-roblox-points-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristics indicate a malicious redirector designed to entice users to click through to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/how-to-hack-roblox-points-game-hack In PDF document text
    • http://internetdeputy.com/images/free-robux-rbxrewards_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://internetdeputy.com/images/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://internetdeputy.com/images/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://internetdeputy.com/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://internetdeputy.com/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://internetdeputy.com/images/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • http://internetdeputy.com/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://internetdeputy.com/images/free-roblox-flat-bill-hat_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://internetdeputy.com/images/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://internetdeputy.com/images/dumptruck-simulator-hack-roblox_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_004_off00004e27.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E27 26632 bytes
SHA-256: f9dad5e440c96a5481930ca8681f2e8bd432f50bab2bd6c2035c0d31e3b11252
font_01_sfnt_off00008b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B94 18724 bytes
SHA-256: baf1e5f63f1ed0cfbcc2c13e331553d73edd314dadee0f0544809f530c52a183

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