Malicious PDF — malware analysis report

Static analysis result for SHA-256 501a1cafba6a6ab0…

MALICIOUS

PDF

35.8 KB Created: 2021-06-30 02:07:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99e37d658df65529bfbafa54743fa31f SHA-1: f03ad05fde1105e545375cc53711e1e416b6f573 SHA-256: 501a1cafba6a6ab0bd13b48625b43df2db7e011e5bd34667475aca942676c515
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/roblox-lumber-tycoon-2-free-money-game-hack. The document body also contains a call-to-action phrase, 'CLICK HERE TO ACCESS ROBUX GENERATOR', reinforcing the lure. The presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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/roblox-lumber-tycoon-2-free-money-game-hack In PDF document text
    • https://opac.itp.ac.id/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-tiktok-coins-2021_GM835599320.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-robux-generator-xbox-one_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-clothes-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/secret-robux-hack-roblox_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-free-2021-accounts_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-hack-into-a-roblox-private-game_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-roblox-intro-maker_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-studio-free-templates_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/hack-roblox-pc-download_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/comment-cheat-sur-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/free-roblox-boombox-codes_GM431946152.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • https://opac.itp.ac.id/repository/roblox-ro-port-tycoon-money-cheat_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off0000326b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326B 23012 bytes
SHA-256: ca59a8026e2d7fc656529f2998e501e5de6b053f45ba86400960dbc46c2c24f3
font_01_sfnt_off000065b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B9 19548 bytes
SHA-256: ce0a85c31d45aeac9f0a2b0bb11c7445bbfd33ccfb607cc7554732a524e78357

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