Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe9a6905373e97b2…

MALICIOUS

PDF

46.0 KB Created: 2021-05-14 11:38:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 542e36123eed9a1f6fe506259fcfa70e SHA-1: a06b55a2f8b46b86b2ade88742cf03c5402cdd17 SHA-256: fe9a6905373e97b2a5ab8a3a5533b30eff6d937140c5c051dbcf558a519b76db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors that masquerade as free game generators or hacks, such as 'Roblox Premium Free Game Hack'. These links are designed to entice users to click through, likely leading to malicious websites or further downloads. The presence of a visual download button heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/431946152/roblox-premium-free-game-hack In PDF document text
    • http://taskcyg.nl/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://taskcyg.nl/images/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://taskcyg.nl/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://taskcyg.nl/images/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/earn-robux-now_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://taskcyg.nl/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://taskcyg.nl/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://taskcyg.nl/images/robux-premium_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://taskcyg.nl/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://taskcyg.nl/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4674 27680 bytes
SHA-256: 5587d5b5af6a6bbec55d87e1fe8dd691e1742315fdd92f52d90f4fd7f248a91d
font_01_sfnt_off0000860a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860A 3016 bytes
SHA-256: 4c3e2db5174821787a4569c9da4979555510caebd15fb9cea35573c139e242bd
font_02_sfnt_off0000906d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906D 18620 bytes
SHA-256: 29b072d58d5b3a55b665a3fffae90f40690866f16f9b518bc51084b043f759b6

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