Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac148bcb8301993…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 12:45:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5834ac4f71da2054bd4666e599637507 SHA-1: 0b38f5ce1e71c0a3b37dc19072ff404cef59e1b7 SHA-256: eac148bcb8301993acb73c4724b1cd681aaff688ebd9d88d98a63b699cf471b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising 'free generator / game hack' lures. The primary malicious URL identified is http://netcdn.tw/app/406889139/free-coins-coin-master-blog-game-hack. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely leading to further malware downloads or phishing pages.

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/free-coins-coin-master-blog-game-hack In PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/yt-how-download-script-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-any-item-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-how-to-get-unlimited-free-robux-and-obc_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/free-spins-coin-master-daily_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_002_off0000329e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x329E 22644 bytes
SHA-256: 514de24cbe2d1f27db492b7ffdd39ffa1e957b375e2598f5d9d7c409a420d8fe
font_01_sfnt_off00006524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 18288 bytes
SHA-256: 4d8a9a5f845e6a4543ff8d893a9e279bb8bc764ff82ea70c3d9fb3020af74c46

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