Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e379447ed01f406…

MALICIOUS

PDF

34.5 KB Created: 2021-06-28 07:36:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 210733f2a885ff67e2f1d97048b32b51 SHA-1: 7907cffeec08c8835199295973ab38e0f1240bbc SHA-256: 4e379447ed01f406e3a8cf137f714eddf17493170c5e0c9add32cb64ec41b6ea
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/beastmode-roblox-hack-game-hack In PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/how-to-get-robux-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/free-roblox-toy-june-2021_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/redeem-roblox-virtual-item-hack_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/how-to-get-free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/how-to-hack-a-vip-server-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/roblox-free-cool-marshmello-shirts_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/hack-client_GM479516143.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/free-roblox-top-battle-games-book_GM431946152.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://www.b2bonline.ph/uploaded_files/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.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
font_00_sfnt_off00002fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCC 22284 bytes
SHA-256: 94313801d27e0e2cf436cccff6ed94ad74a16b17d2880cbe9a1c5db09d813177
font_01_sfnt_off00006144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6144 19192 bytes
SHA-256: b8b813cd14f46a5a0fcc34fe3517dddeb0a89e2ee9f75fc4394f3e14fceaf991

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