Malicious PDF — malware analysis report

Static analysis result for SHA-256 5983e57caa3bd9db…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 15:54:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ed634cfe8a8402c3145039f9f49024a8 SHA-1: d16798d3bb19342c2016aecc6415621f545c207d SHA-256: 5983e57caa3bd9db646739b518aa4a9c3069217dbba2f5acbc16e9d820dd4022
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed to lure users into clicking on links that appear to offer game hacks or generators. The primary link, http://netcdn.tw/app/406889139/how-to-hack-coin-master-ios-game-hack, is identified as a malicious redirector. The document body and numerous embedded URLs reinforce this lure, directing users to various sites offering cheats for games like Coin Master and Roblox. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or redirection scheme.

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/how-to-hack-coin-master-ios-game-hack In PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/hack-para-cualquier-juego-de-rpg-en-roblox_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/pokemon-go-free-games-online_GM1094591345.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/best-robux-hack-ever_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/pokemon-go-free-roam_GM1094591345.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE2 22812 bytes
SHA-256: d9331e5bf4ed84e7c1c971e820faada6167f4999860e112e1546dd57d813c45f
font_01_sfnt_off000062e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E4 18168 bytes
SHA-256: 71e887a3261416c1ed38c7e6db09c796b1b192583c4cf34fe0c368ad43d6343f

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