Malicious PDF — malware analysis report

Static analysis result for SHA-256 52d0f2e1255ec970…

MALICIOUS

PDF

48.1 KB Created: 2021-06-03 06:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 27bd247c2f8cd64cbbaa491dfb9bd84a SHA-1: 61b86a752fbd1232d35e1b7ec704e9c4ca1e6b84 SHA-256: 52d0f2e1255ec9703b870a9e6ef7596d37587df53071af38e95846b30696efad
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The document body, though heavily obfuscated, contains a URL that points to a malicious redirector. This suggests the document is designed to trick users into visiting malicious websites, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/best-way-to-hack-coin-master-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/robux-adder_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/daily-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/pubg-8-uc-buy_GM1330123889.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/robuxy-com-free-robux_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
stream_004_off000051ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51CE 25080 bytes
SHA-256: fcf70fbad6edcf9bbcb90e068a50b66620e69d8846e26dc612aa9d5cd7b3e947
font_01_sfnt_off00008b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6C 4020 bytes
SHA-256: 7d3617ecf51e14e6cffc9372c4441988c3b6cb3ea010f7512aee6af842ef388d
font_02_sfnt_off000098f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F7 18308 bytes
SHA-256: efd36867875b7c9e05accf83dcfb4edd17123817e8c4c99ad8b82f7777b7703f

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