Malicious PDF — malware analysis report

Static analysis result for SHA-256 48239846a90c4fc5…

MALICIOUS

PDF

35.0 KB Created: 2021-07-01 23:37:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3b11088ef029d1c7375f7f8904e0cccf SHA-1: 6aadc563ad376d6fdf27467caf05f6b9d41ef4ff SHA-256: 48239846a90c4fc5030543d84100f2f3831d615625ec367f440e99c3090e2ada
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with one specifically identified as a malicious redirector for a 'game hack' lure. The document body reinforces this by displaying similar game hack-related titles and URLs. This suggests the primary goal is to redirect the user to potentially malicious websites, likely for credential harvesting or further malware delivery.

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/como-hackear-roblox-para-tener-robux-infinitos-para-pc-game-hack In PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-robux-zone-wordpress_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-fashion-famous-free-game_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/como-hackear-conta-de-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/pokemon-go-free-coins-without-human-verification_GM1094591345.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-working-strucid-aimbot-hack-2021-agust_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/earn-free-robux-roblox-win_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/hack-roblox-account-kali_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/hack-para-roblox-tycoon_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-roblox-promoodes_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-hack-me-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/hackear-roblox-android_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/hackaron-roblox-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
font_00_sfnt_off000030dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DC 22468 bytes
SHA-256: fe57805ea9b30220c4dee123c66b4cbbd4ac53794d576b15874e8dc6547ccff0
font_01_sfnt_off000062ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CE 19432 bytes
SHA-256: dc11f568f973f6c75bfe68582af0fe692c6da8c19949607dfd53663c3b361d1a

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