Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0373a7c3b624d6…

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 22:15:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ce05f47fc8a298c6bf8d92642c7c3701 SHA-1: 352d476042d37a579f48b843e70e533d96d2af12 SHA-256: 2a0373a7c3b624d635edd935ac1008783a9596aa5f431aa2b0caed1b53ab6b93
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to known malicious redirectors, specifically promoting free game hacks and generators. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further malicious content or malware downloads, serving as a lure for users seeking in-game advantages. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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/431946152/dominus-roblox-free-game-hack In PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/without-human-verification-pubg-uc-hack_GM1330123889.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/wurst-mc_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-dominus-free_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/pubg-700-uc_GM1330123889.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/tiktok-free-login_GM835599320.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_off00005081.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5081 24988 bytes
SHA-256: 146efae6a98575f55322edaaf8af2b5a3af3fd065d7777862761c49d00e98abb
font_01_sfnt_off00008a63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A63 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00009404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9404 18636 bytes
SHA-256: 1690c5f9ff64b0404791158703cc5ff15d066eaaeadd90da682346b13cb15e3c

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