Malicious PDF — malware analysis report

Static analysis result for SHA-256 467c0193524ef33c…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 22:36:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8db8d0a1c88d48512b191654f7701d23 SHA-1: 311099a017ecbc2447c3f21c9b0d6cb1791845fe SHA-256: 467c0193524ef33cb97867cdf57635bfa4bc092e91e6d3e5edf6a07ca90c2f47
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a call-to-action button, directing users to a known malicious redirector infrastructure. The primary lure is related to 'free game hacks' and in-game currency, a common social engineering tactic. The ML classifier also strongly indicated maliciousness.

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.tw/app/431946152/how-to-get-free-roblox-money-game-hack In PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/wix-free-promocode-generator-roblox_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/hack-roblox-ultimate-driving-dinero-infinito_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-phantom-forces-hack-credits_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-robux-promo-codes-2021-not-expired-november_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/free-roblox-accounts-with-robux-and-obc-2021_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/tiktok-views-free-2021_GM835599320.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/nev-roblox-hack-exploit_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id//repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/roblox-free-t-shirt-2021_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.unda.ac.id/repository/hack-coin-master-free_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
font_00_sfnt_off00002ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFA 21796 bytes
SHA-256: 03e8ca7094bc48d07d8709aad1a06cf7af8f557e2a1ddb7a31f5cd6ea60d74b0
font_01_sfnt_off00005ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFE 19296 bytes
SHA-256: 62e2d478c3b8ba984cb5c2b5fd6287141d7fbbdf36fee583ba60af1fa784e302

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