Malicious PDF — malware analysis report

Static analysis result for SHA-256 a14779bbb6a9f1f7…

MALICIOUS

PDF

45.3 KB Created: 2021-05-20 03:38:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3376976ff57946b8c4044789b5d20078 SHA-1: e29bd7d561feaf3436678d9ddbc51f1ff237aaa4 SHA-256: a14779bbb6a9f1f7dd9135e339b37610d09ca875ab648e41cc45ba6806f5f83d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, designed to entice users to click through. The document body, though partially obfuscated, reinforces this by mentioning 'Coin Master Daily Free Spins Link Today' and includes the primary malicious URL. The presence of these lures and redirectors strongly suggests a phishing or scam attempt, likely leading to further malware download or credential harvesting.

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 https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-link-today-game-hack In PDF document text
    • http://kingmusic.pl/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://kingmusic.pl/images/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://kingmusic.pl/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/roblox-e-free_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-no-verification-no-download-2021_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
stream_003_off00004e92.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E92 28796 bytes
SHA-256: 26b09e813685e7c3996b7815a634c36250207c24515bcc64f83d71f76ee73462
font_01_sfnt_off00008de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE5 18652 bytes
SHA-256: b7acebacf47409c7f0f2932ba41e4c1dc120b4ef5280387cf9333091bd47b2e0

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