Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc419b010004751…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 23:30:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 522d62c40a28aad5684152a11a73cd6e SHA-1: 2d8071f5ee815aeceac0bef70f018799f1ed45c1 SHA-256: acc419b0100047514f8a8b88ab9dcbc8c7a60462c3416f8f141f4bca3b18045f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free in-game currency. The primary link directs to 'netcdn.tw', which is flagged as a malicious redirector. The document body and embedded URLs suggest a phishing or scam attempt to trick users into visiting malicious sites.

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-anarchy-server-no-hacks-game-hack In PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/get-me-robux_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-get-free-robux-easy-hack-2021_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-get-free-audio-uin-roblox-2021_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/cheat-in-mad-city-roblox_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off000030c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C8 22608 bytes
SHA-256: 2648ecf1462d8ce184769495bcb7c53d09c2def322a9552c699a2be98dd6b10a
font_01_sfnt_off00006217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6217 18628 bytes
SHA-256: 86ee0414b2be7e69eca202f3c37a89f4277b2343f7cab79e93a985b106fa4f69

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