Malicious PDF — malware analysis report

Static analysis result for SHA-256 5804720d90fc4cbe…

MALICIOUS

PDF

42.8 KB Created: 2021-05-11 17:01:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ab7992b90bf9d8c7cad5fd721115502e SHA-1: 1021c62e8374f0d8303fbfed9cabe49a7c04e100 SHA-256: 5804720d90fc4cbeedfb91f1e1735df144528e01a75a7184164d876036c4a128
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to external URLs. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures suggests a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-get-free-unlimited-robux-game-hack PDF link annotation
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/114-hacks_GM479516143.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/robux-get-com_GM431946152.pdfIn PDF document text
    • http://mismiftahululumsentul.sch.id/__statics/gudangsoal/files/coin-master-fan-page-facebook_GM406889139.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_003_off000048fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FE 25016 bytes
SHA-256: 638f2dd876cdd239fde341f5cac4b95514a7c5a2092beb3dc005bb3d7bf52108
font_01_sfnt_off00008296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8296 19096 bytes
SHA-256: 9b17e9a23becacda63dddbc7f165c1e9b21e0166e4f27ededabbca260bf2e523

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