Malicious PDF — malware analysis report

Static analysis result for SHA-256 15989b9b338ff757…

MALICIOUS

PDF

33.1 KB Created: 2021-07-03 12:04:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dda8a335ee6868a46c9d7c09e11436e1 SHA-1: 7223bfd502b484b06717f042d8771596910e5c71 SHA-256: 15989b9b338ff757ef3244a0062536c01909209f0db39bf23dad5ce22f90cca8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one to a known malicious redirector at http://netcdn.tw/app/479516143/free-minecraft-website-game-hack. This redirector is presented as a lure for free game hacks and generators, indicating a social engineering tactic to drive users to potentially harmful content. The presence of multiple similar URLs suggests a campaign distributing these lures.

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/free-minecraft-website-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/woman-roblox_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-hacks-for-roblox-apoc-rising-for-windows-7-pro_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/pubg-uc-300_GM1330123889.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-roblox-executor_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/pubg-uc-free-hack_GM1330123889.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-hack-free_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-wikihow_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/pubg-uc-wallpaper_GM1330123889.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-snacks-on-coin-master_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
font_00_sfnt_off00002f07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F07 21788 bytes
SHA-256: e23d7a75373e4e3b3bc470e5baffd8f3911d46c1a8e7cc560d154798cf2d07a8
font_01_sfnt_off00005edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDB 18212 bytes
SHA-256: 08e41d3b03130c2060aba57ba7a93c79e063729dc5ffe32466a4c949ad11576a

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