Malicious PDF — malware analysis report

Static analysis result for SHA-256 445abc33e3dbe7bd…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 02:46:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 50e2713df08bff4149cd071052589420 SHA-1: 8ec9617bfb9c7db251f0172aa0f6ebc9843507b5 SHA-256: 445abc33e3dbe7bd00b7579a63ccd0d678e99cc6aa333dbeb3c8aa5d27fadca9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game items and hacks to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

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/how-can-i-get-free-clothes-on-roblox-game-hack In PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-admin-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/robux-hack-generator-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-games-online-free-play_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-hack-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-build-a-boat-for-treasure-fly-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/dragon-ball-z-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/external-roblox-jailbreak-hack-2021-download_GM431946152.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_002_off00002e00.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E00 23020 bytes
SHA-256: 57547424ed01fccade9f19881d22a729f7286b423a51803e70de460e800dfb63
font_01_sfnt_off0000612f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612F 19084 bytes
SHA-256: 3d2e6ca0eb8655db851ef1bac6d4233e47fdc17619fd81319dc2aaa164359470

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