Malicious PDF — malware analysis report

Static analysis result for SHA-256 df63c8f97be9e87e…

MALICIOUS

PDF

46.5 KB Created: 2021-05-19 05:37:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ea6c8656f54199ab1670a26695955bf0 SHA-1: 22c6c8824547c19fc653655f715d99fa777ae3f3 SHA-256: df63c8f97be9e87e79b061a48baed4f7a36b14a93119dd99e8af119cdaca029e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with one identified as a malicious redirector. The document body and heuristics suggest a lure related to game hacks or free items, aiming to trick users into clicking these links. The primary malicious link identified is https://netcdn.xyz/app/431946152/hacks-para-roblox-game-hack, which likely leads to further malicious content or phishing pages. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/hacks-para-roblox-game-hack In PDF document text
    • https://privatearrangements.co.nz/public/files/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/google-roblox-games_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/mcpe-optifine_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-real-2021_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ad7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD7 26096 bytes
SHA-256: f8d10d14fedb954db207f262ae23ac5af217b01b0c9ac841a98050af3e763671
font_01_sfnt_off0000866e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x866E 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9315 18336 bytes
SHA-256: 2c3591d0816fe2ec07885ff461cab1f1278707ef551a51e26631ad2b93349e2a

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