Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e9fc35a20c736f…

MALICIOUS

PDF

44.5 KB Created: 2021-05-16 09:25:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 65e227cfc6d2f593437fcac904a5f10e SHA-1: 790f9e50758e6e795b170ab63a04321b6ec9b6be SHA-256: 79e9fc35a20c736f8bf3afb43c3740400c1557b5f975bb263721907d76c21a21
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and free generators. The heuristic firings indicate that these links are designed to lure users into potentially harmful websites. Although no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, likely leading to a phishing or malware download attempt.

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 https://netcdn.xyz/app/479516143/minecraft-free-demo-game-hack In PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c50.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C50 31496 bytes
SHA-256: 2b61cd7bca36b62ce8e25117eb6537b6783fe61ffafbaabe7a9e5902d1cc65cf
font_01_sfnt_off00008c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C45 18140 bytes
SHA-256: 0536168ac90d64eb009e64b37040528b80b37c7a826300234d0294943182c78a

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