Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b82916a72ede564…

MALICIOUS

PDF

46.9 KB Created: 2021-05-15 11:24:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3a3787391307da0f403448a67133669d SHA-1: 76ae0237458c811d5c10fb5a78b4ef750d8c4c97 SHA-256: 4b82916a72ede564f52534aade40be4de12358a4743d3a0e0852451a7cd971b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game-related cheats or generators. The primary link, https://netcdn.xyz/app/431946152/oprewards-com-roblox-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a phishing or scam attempt, likely aiming to lead users to sites that may host further malware or attempt credential harvesting.

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/oprewards-com-roblox-game-hack In PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/getrobux-now_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spin-app-apk_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/wurst-115_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-heaven-daily-free-spins-and-coins-links_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b4a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B4A 27116 bytes
SHA-256: ea37f8544655e3ae84d06a30c1e4c038141be6d68c213e71c56c7a9614a77dd1
font_01_sfnt_off0000884d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884D 3112 bytes
SHA-256: 471f662098e83c5562504503f5e7603b336ca0957605358090bb98e15c7aed80
font_02_sfnt_off00009307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9307 18784 bytes
SHA-256: 639e9c6fee21fadec9bbcda4b83e838a121abbfeb61251c021aae19a2229de7e

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