Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c8008dc2d82eaed…

MALICIOUS

PDF

41.5 KB Created: 2021-05-19 20:30:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8ee32f0e6b37debc778d7c409ad062dc SHA-1: af1c4ed6e0ae42b1cc6c49363bd6e768f382b601 SHA-256: 1c8008dc2d82eaedb9b06c456a3447608ae909198573ed73b414a6dd4f8dff8e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hack generators. The primary redirector URL, https://netcdn.xyz/app/406889139/coin-master-hacks-no-surveys-game-hack, is flagged as malicious. The document body and embedded link structures suggest a phishing or scam attempt to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hacks-no-surveys-game-hack In PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/pubg-uc-codashop_GM1330123889.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/spin-coin_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/114-hacks_GM479516143.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/robux-hack-generator_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_off0000480a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x480A 24424 bytes
SHA-256: e3ff859ae7fab6315d5df5fcac6fe759ad728732074651ce72e41f885be0df47
font_01_sfnt_off00007fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE3 18148 bytes
SHA-256: 55a2c5e1b7f94918972dbf36de35b773a73c2c126b1f6e018f905b5ffe646750

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