Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f842b9cf683711b…

MALICIOUS

PDF

41.5 KB Created: 2021-05-14 17:32:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9034340dec6678990e60b8afa0694ea1 SHA-1: 7ede9cc656b373eba68b09e303e5088b82b55ce9 SHA-256: 0f842b9cf683711bcd2d56abc73786df6b8049820db77d161d118443ac3c3ba4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to redirector domains, specifically promoting 'free coin hack' and 'free robux' lures. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-free-coin-hack-game-hack, which is associated with malicious activity. The document body and embedded URLs suggest a social engineering tactic to drive users to potentially malicious websites.

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-free-coin-hack-game-hack In PDF document text
    • https://grovehilloutfitters.com/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/make-free-robux_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/wurst-minecraft_GM479516143.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/roblox-a_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/minecraft_GM479516143.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-robux-clothes_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000487f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x487F 24676 bytes
SHA-256: ca40f65ad98b0afb868bfc8b3338053872d439e36909cb258e7366b5db6f2604
font_01_sfnt_off00008121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8121 17880 bytes
SHA-256: 9d1f455011f0aa7862855f259ab9ea2efa3be9ec050c3ec97e4c793879e57b5c

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