Malicious PDF — malware analysis report

Static analysis result for SHA-256 985059faee1b600d…

MALICIOUS

PDF

42.7 KB Created: 2021-05-14 21:02:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 76c725c643cd548ff6492e58a4ad47fb SHA-1: a7d47cfb68d5bf5e1f4b2da046f3e354d61e8dfb SHA-256: 985059faee1b600d01f6a3df3f637c1be7e93317d6821c8e6cf4eeb206fcfddf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The ML classifier also flagged this PDF as malicious with high confidence. The embedded links likely lead to further malicious content or malware downloads, serving as a lure for users interested in free game-related content.

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/479516143/minecraft-games-free-download-game-hack In PDF document text
    • http://centuriatus.com/images/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://centuriatus.com/images/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://centuriatus.com/images/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://centuriatus.com/images/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://centuriatus.com/images/coin-master-daily-free-spins-link-today-haktuts_GM406889139.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_off000048a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48A3 26800 bytes
SHA-256: 1c4ae0dca48cede767356d10b54078358cf8405b7402afe3324c32238492dad9
font_01_sfnt_off000083bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83BF 18548 bytes
SHA-256: ca1316f27781c6024a610b7b161693a7a162d40ad3e3bb281154e4fcfa7f8f80

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