Malicious PDF — malware analysis report

Static analysis result for SHA-256 64da0e935e4f46c1…

MALICIOUS

PDF

44.1 KB Created: 2021-06-08 12:13:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d01fbeee1c115d055bead7b7e7c85977 SHA-1: 80ccc358e86d8cd536e14f6d404f7e7f8a0baf3a SHA-256: 64da0e935e4f46c11f64a240e42f66f8c1867218c75f343e1fec23898496eab0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, disguised as game hacks and generators. The document body and heuristics indicate a lure to trick users into clicking these links, likely leading to further malware downloads or phishing. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-how-to-get-any-item-for-free-game-hack In PDF document text
    • http://w-i-r.de/images/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • http://w-i-r.de/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://w-i-r.de/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://w-i-r.de/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://w-i-r.de/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/roblox-hack-download-robux-game_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://w-i-r.de/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://w-i-r.de/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://w-i-r.de/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • https://www.bandicam.comIn 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_004_off00004fae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FAE 25048 bytes
SHA-256: a11c8c0f6106ebc7c1ff38085fee66d04e8d568ce7134de6c9062474319acb98
font_01_sfnt_off000088b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B4 18656 bytes
SHA-256: 9d7ed5d572b595d86c811431ea27d4823710acc076bbde80946722f74d01fa92

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