Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ac549880ac5e249…

MALICIOUS

PDF

43.3 KB Created: 2021-05-17 20:03:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a2582c9d3b946f050f60ad25d6457db5 SHA-1: 73dc8e194ab154f66d9c529362e4298d102c0668 SHA-256: 2ac549880ac5e2496139b3ed60815272dcdda63504c0fae25aa4b44f4510f44c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free Robux' or 'game hacks'. The primary lure URL is https://netcdn.xyz/app/431946152/how-to-get-free-robux-for-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/how-to-get-free-robux-for-free-game-hack In PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/xray-hack_GM479516143.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/robux-robux_GM431946152.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/coin-master-game-free_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/easy-robux-com_GM431946152.pdfIn PDF document text
    • https://indo-parabola.com/ckfinder/userfiles/files/wurst-112_GM479516143.pdfIn PDF document text
    • https://www.indo-parabola.com/ckfinder/userfiles/files/free-spins-and-coins-on-coin-master_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF3 25912 bytes
SHA-256: 44f04bdce3e8bfc3d565c9ff2c724b89ca652fa42f946eca9d9b47e99867c49c
font_01_sfnt_off000086dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DD 18280 bytes
SHA-256: 2eeeedfcb2f224ab556fa0ab031baeab03f86dcbcf90e3baaaf5b6d88536dec3

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