Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f9c2a69c77c063c…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 14:08:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7ccc70854ce4a2de7187363cd40c61a0 SHA-1: 8486116a8dd78d0216b3ab6a265ffd483ffa14f1 SHA-256: 4f9c2a69c77c063c13f77073b861c27e865fea345bae0852b95807a47517d5c5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and free items. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely leading to further malicious content or downloads. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a phishing or scam 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 http://netcdn.tw/app/406889139/legit-coin-master-hack-no-human-verification-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/tiktok-free-pizza_GM835599320.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-lumber-tycoon-2-i-cheated-for-this-box_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-bird-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/jojo-s-tops-free-roblox-games_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-roblox-noclip-exploit_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-proof-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-chakra-naruto-final-bond-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-cheat-engine-bypass-february-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-payouts_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/can-frirnds-on-roblox-hack-you_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_002_off00003190.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3190 22680 bytes
SHA-256: 0615d059249447c5ac171dee7907297e35c7327d230184e0c06d3b7d2b0b09d6
font_01_sfnt_off00006424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6424 18540 bytes
SHA-256: 944ef90ac3957acf4ab0155e17f54942f1cad929ef859b36db5d7006f4b781e4

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