Malicious PDF — malware analysis report

Static analysis result for SHA-256 4faf3bc6a76cb003…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 13:31:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a947b39d80b3e6bf0152e7ca940e0d3b SHA-1: 3e48e60fa3ec90c5624ef412fa07daef7ff20148 SHA-256: 4faf3bc6a76cb0033f40545c5619c97e3fc55551a62b98a3787ed5358f181256
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that explicitly mention game hacks and cheats, such as 'Roblox Hack Prison Life V2 0' and 'free robux'. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to download a secondary payload. No scripts were extracted, but the document's content and heuristics indicate a phishing or social engineering lure for malware distribution.

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-hack-prison-life-v2-0-game-hack In PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/phantom-forces-hack-roblox_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-abs-on-roblox_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-roblox-jailbreak-codes_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/inquisitormaster-the-new-roblox-hacker-is-after-me_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-codes-2021-may_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-money-adder-apk_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/fly-cheat-in-roblox-engine-2021_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-do-you-get-free-skins-in-roblox_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-to-get-free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-roblox-generator-com_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/roblox-card-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/illegal-roblox-hacks_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_off00002fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBD 22208 bytes
SHA-256: 2f90b20a5fd9b7a44ca92d7613813bbce9d6dd2d9c1340747aef50eda9b062b0
font_01_sfnt_off000060fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FC 19360 bytes
SHA-256: 9676acebb37f475d484fe0953c7d865170b61c7b7b8e903f33d30124796bd0d9

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