Malicious PDF — malware analysis report

Static analysis result for SHA-256 03f40eda7fea1761…

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 06:16:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d277a7c505b43abd190fd6be350a5dd5 SHA-1: c4a46b4adb4c454b2876990fc47a9648dc93d3cd SHA-256: 03f40eda7fea17616d34d59bf0a8aed12a4e2b015ec535120132cf3e5398f64c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators. The document body, though heavily obfuscated, contains references to these lures and embedded URLs. The primary goal appears to be directing users to malicious infrastructure that likely hosts further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/roblox-apocalypse-rising-hack-game-hack In PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/easy-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://pustaka.mesin.ft.unand.ac.id/repository/coin-master-free-link-app_GM406889139.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_004_off000050ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50EC 26892 bytes
SHA-256: f840193986a9af1abb3b22a4c833c01876b1885b01966db498df8cbe230df9d0
font_01_sfnt_off00008e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E14 18948 bytes
SHA-256: c81671b47ab5e7fd402c3d16699df98b51b9b699798839031d1ff55305a8bd80

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