Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80b0252bc487028…

MALICIOUS

PDF

37.5 KB Created: 2021-07-01 07:13:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 583651eaecac5738c23be962843360bf SHA-1: c9a0df6fa19454acf99644fb451e0f4f8a8f9eb0 SHA-256: b80b0252bc4870286ea2bef0db7a2918a435d3957a4f82fc4bae1003f036f573
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to known malicious infrastructure. The document body and embedded links suggest a lure for game hacks or generators, likely to trick users into downloading further malware. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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/blackout-hack-roblox-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-22k_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-hack-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-crown_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/comment-hacker-un-server-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/use-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-robux-cheat-youtube_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/pokemon-go-no-free-raid-pass_GM1094591345.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/mc-update_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/get-free-get-lol-roblox-shirt_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A54 23024 bytes
SHA-256: 0006393e44abd5931653ecb4df51733deda1effc22c74ccc9dcb330fb098235d
font_01_sfnt_off00006def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEF 18900 bytes
SHA-256: 814bcb575279e59ee817b1058488afbfb57382ace9207cbccb8e432bd9b8f056

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