Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3acc26151e0668…

MALICIOUS

PDF

33.6 KB Created: 2021-07-06 14:37:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 496e16d6eee3d68668e8d6a876abe8f8 SHA-1: ac0e07c85acf43dad3519f58b38de3b44fba5b72 SHA-256: 1d3acc26151e0668816efa905abdc4116c3c027dace3b5262691a4ad7d98879b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure appears to be a Minecraft hack, directing users to http://netcdn.tw/app/479516143/scaffold-minecraft-hack-game-hack. The presence of numerous similar links suggests a phishing or scam campaign aimed at tricking users into visiting potentially harmful sites. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a malicious intent to redirect users to malicious content.

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/479516143/scaffold-minecraft-hack-game-hack In PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-accounts-hacken_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-hack-people-swim-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-yoh-can-win-today_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-robux-generator-20212021_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-free-excutor_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-run-fast-roblox-the-strets-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/cheat-robux-2021-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/how-to-hack-roblox-with-terminal_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/roblox-gun-game-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/there-are-secret-ways-of-getting-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/hiw-to-hack-miscreated-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/hack-file-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/robux-admin-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/top-roblox-anti-cheats_GM431946152.pdfIn PDF document text
    • http://pustaka.fkg.unand.ac.id/repository/artificial-intelligence-roblox-hack-streets_GM431946152.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_off0000307b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307B 21740 bytes
SHA-256: 4ec9c6fd7d2e92f8cc250f77c2ff9e8e1c8bfa922ac945c40bb0a55282ed7975
font_01_sfnt_off00006044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6044 18416 bytes
SHA-256: 9b92067fa4c44ca875f0f74c7263e73a9dafc9ca5c6c8fe94a9a1870cb753e0d

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