Malicious PDF — malware analysis report

Static analysis result for SHA-256 719315dffa911422…

MALICIOUS

PDF

46.4 KB Created: 2021-05-13 08:30:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ac38982d6f5b75590026322d4961538d SHA-1: 58a8ab4a6d7328df904016b8fcd9e356d19e9d9e SHA-256: 719315dffa9114226326e23ebe868796d20356b0c04f6f19d66977b4df1a5683
160 Risk Score

Malware Insights

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

The PDF contains embedded links that lead to known malicious redirector infrastructure, specifically promoting 'free generator / game hack' lures. The document body, though heavily obfuscated, contains references to these lures and includes URLs pointing to potentially malicious content. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/431946152/free-shirt-templates-roblox-game-hack In PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-download_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3C 24672 bytes
SHA-256: 13a64c8383916c68b91499dd32bf7895458aa0b05fb9487a9862e2c5a7b4f397
font_01_sfnt_off00008455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8455 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off000090fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90FD 19000 bytes
SHA-256: 1d157663e44f707a78bf4c363a5a8b50c98b0fefede0b35a380be154b48f2d79

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