Malicious PDF — malware analysis report

Static analysis result for SHA-256 484a0c721af987b9…

MALICIOUS

PDF

43.4 KB Created: 2021-06-09 10:26:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dc4f89e940f5f2a05bc760b1d44a2a97 SHA-1: 86e709fc50c7dccb3af755526b1f3fe5370f3ea5 SHA-256: 484a0c721af987b9544f746d7833fa7c628e4b9a9ec255d444e4ae96b2196ced
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious infrastructure, specifically advertising game hacks and generators. The document body, though heavily obfuscated, contains references to these lures and the malicious URL. This indicates a phishing or scam attempt designed to lead the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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.tw/app/431946152/how-to-hack-in-roblox-prison-life-no-virus-game-hack In PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/tiktok-free-jazz_GM835599320.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/pastebin-com-raw-free-robux_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/pubg-uc-567_GM1330123889.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-how-to-get-the-animal-hoodies-free_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/pokemon-go-3-free-raid-passes_GM1094591345.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-gold-cards-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_off00005406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5406 23804 bytes
SHA-256: 1c64d4846276ccb173dd79654fe7e0104752c1d90d9a8c531c2711d8d366ecb0
font_01_sfnt_off000089f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F5 18892 bytes
SHA-256: 48df284076ac54ac7f231f74835d79e476fdd7e9bd5bd3fc23521b8ca695a121

Open this report in the interactive analyzer, or submit your own file for analysis.