Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e12806ef2c465f…

MALICIOUS

PDF

33.1 KB Created: 2021-06-25 22:54:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: af0824378d6805bf959b967b28b7a836 SHA-1: e644bb5d6997ded58fa000322aeb017e49165dc2 SHA-256: d9e12806ef2c465f9caca834d21dea76e258d033e74d57f65c0126f0bfc44af5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free spins' lures. The primary redirector URL identified is http://netcdn.co/app/431946152/hack-jeux-roblox-game-hack. The document body and heuristics indicate a social engineering tactic to trick users into visiting these malicious sites, likely for further malware delivery 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 http://netcdn.co/app/431946152/hack-jeux-roblox-game-hack In PDF document text
    • http://thamelinn.com/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/sword-fighting-roblox-game-free-to-copy_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/cool-kids-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/original-roblox_GM431946152.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://thamelinn.com/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA2 21352 bytes
SHA-256: 7186af97646e9564eca06ee0c8c0fb2c799716baeffc8cc348e4f1203f08867c
font_01_sfnt_off00005c43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C43 18964 bytes
SHA-256: 50a3f3b524c9d0edacb826a204a2c1fd908962f6df811749a714b9469f4b96e8

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