Malicious PDF — malware analysis report

Static analysis result for SHA-256 de1133223dcf1907…

MALICIOUS

PDF

33.0 KB Created: 2021-06-27 05:12:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 55cbf882b70dd41e71fcc3651b4a0b13 SHA-1: 72edfba638abc39593e9517c560654bdebf145f7 SHA-256: de1133223dcf1907d65c69f6a1de8ca10eb785aca7504a713ec7f5752b0deddc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors, specifically targeting users with lures related to game hacks and free currency. The primary link, http://netcdn.co/app/431946152/can-you-please-get-me-free-roblox-game-hack, is identified as malicious infrastructure. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/can-you-please-get-me-free-roblox-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-synapse-download-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/400-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-xyz-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-backpack-roblox-catolog_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/guuudinfo-robux-hacks_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/dragon-egg-backpack-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/cbr-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/segunda-guerra-mundial-roblox-mapa-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/noob-invasion-roblox-get-free-kills_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-deutsch-download-ios-link_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_off00002b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1C 21812 bytes
SHA-256: 2be4a60a28c9bddbf3c8d94566ed9ca56ea999a311413bbc76b793dafccb2fe2
font_01_sfnt_off00005b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B27 19404 bytes
SHA-256: 499a9b924de5f9b660232615d02ef6dd8c6aca4face7e48261336877f58b600a

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