Malicious PDF — malware analysis report

Static analysis result for SHA-256 2324c22e830fa5c0…

MALICIOUS

PDF

41.3 KB Created: 2021-05-13 22:38:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 548dbb33b63e04a6b436608ce7a0e509 SHA-1: 62276f888ce61e253e29980d009ccd3d1163acc9 SHA-256: 2324c22e830fa5c0018fef77e5ff968a38a02ad4d1472a6ac6f7b3d409331eb5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free in-game items, a common social engineering tactic. The embedded URL 'https://netcdn.xyz/app/431946152/roblox-ban-game-hack' is directly associated with the malicious redirector heuristic. While no scripts were explicitly extracted, the PDF structure and heuristics strongly indicate a phishing or scam attempt designed to lead users to malicious infrastructure.

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/431946152/roblox-ban-game-hack In PDF document text
    • http://www.arredifunebri.com/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/master-coins-free_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/code-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://www.arredifunebri.com/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.arredifunebri.com/images/free-robux-without-verify_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
stream_003_off000048b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48B0 24104 bytes
SHA-256: 24c42c55d0ec94575d3e82ac58c123f3888ad1937bcc68ff0b1a49c7cbff6ce9
font_01_sfnt_off00007fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD2 18012 bytes
SHA-256: ee811b275408340e5acfbb9d33bdd3014b8f6a1fd2105455b61057784e541bf1

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