Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b10da3a8016a55…

MALICIOUS

PDF

45.8 KB Created: 2021-05-15 04:33:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 62ba63e77e672721a57a2e4f5051d29b SHA-1: 5319e5ee72a6b71259c7d10842349df4befc965d SHA-256: e2b10da3a8016a554e5d7655187638a0dc58fe590ad6bf63c78f06d6605472ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body, though partially corrupted, contains text related to 'Coin Master Free Coins 2021' and a URL that aligns with the heuristic findings. The primary goal appears to be directing users to potentially harmful websites through a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/coin-master-free-coins-2021-game-hack In PDF document text
    • http://gazelletr.com/userfiles/files/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/robux-generator-com_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/instantrobux_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://gazelletr.com/userfiles/files/free-coins-coin-master-iphone_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_off00004cf7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CF7 25220 bytes
SHA-256: f3070ac53b407753e2a25522c140f8aa6edd0cf3bda1feb03190be12c659c188
font_01_sfnt_off000085ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CE 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off000090f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F7 18112 bytes
SHA-256: d3290bf375094f68ca2c73f068de3958d05aa7629a05aa779b6fc584462feea2

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