Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d15015470190a79…

MALICIOUS

PDF

35.5 KB Created: 2021-07-10 03:25:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64841d845c398f4b0c82ae8c3c427fa1 SHA-1: dddcbf276fb7f890b8ce1631b08a370ea9172598 SHA-256: 9d15015470190a79dd0f756c54efcc86a416ec9754855c834c158b621056f526
160 Risk Score

Malware Insights

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

This PDF document employs a lure of game hacks and free currency to trick users into clicking a link. The embedded URL, http://netcdn.tw/app/479516143/minecraft-book-collection-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/479516143/minecraft-book-collection-game-hack In PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/coin-master-hack-generator_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/free-robux-100-real-no-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/hack-avec-les-code-promo-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/would-you-get-banned-from-roblox-if-you-hacked_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-minutes_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/how-many-tiktok-free-accounts_GM835599320.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/cheat-engine-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/cheats-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn1klaten.sch.id/__statics/gudangsoal/files/coin-master-for-pc-free-download_GM406889139.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_off000035ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35EA 22496 bytes
SHA-256: 0b58ee1ed3a8ac1fd0a357b5f731792aeb147f9d23633d00b3ee197374e889d9
font_01_sfnt_off000067c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C6 18460 bytes
SHA-256: d4ee59d4009559a10760f1b4f681366fcc14c243429bee840e8cca7020b3171d

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