Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1984b750f10150…

MALICIOUS

PDF

40.0 KB Created: 2021-05-12 07:42:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 271c94b5b3134035ec2df488b8819311 SHA-1: 7786533deb1a3a4979e12046e17bb1eb6a37eba2 SHA-256: 0e1984b750f10150c6b55b621dab224dd6d7d98acbf29aa02ad5f69b254f9e6e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on "free generator / game hack" content. One prominent link redirects to known malicious infrastructure at `https://netcdn.xyz/app/406889139/how-to-o-get-free-coin-master-spins-game-hack`. The document body and embedded links suggest a phishing or scam attempt, likely to deliver a secondary payload or lead the user to a credential harvesting page. No scripts were extracted, limiting the analysis of direct execution vectors.

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/how-to-o-get-free-coin-master-spins-game-hack In PDF document text
    • http://per-bittner.de/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://per-bittner.de/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • http://per-bittner.de/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://per-bittner.de/images/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://per-bittner.de/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-village-3_GM406889139.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_off0000442c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x442C 24080 bytes
SHA-256: 6b41888acdc92b4233b606bbbaecd4276132b67a96b545acc6e09b530ae3fa0a
font_01_sfnt_off00007a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8E 18052 bytes
SHA-256: 1a49309645179e5aa03d30e235780e1615dc0ec238564b82d4d907f08b29e71b

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