Malicious PDF — malware analysis report

Static analysis result for SHA-256 64b7f5ee140d4d19…

MALICIOUS

PDF

46.5 KB Created: 2021-06-04 03:38:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cc69a22c1f5b6fe364376181ba7935b7 SHA-1: 3db119fa40a39192dcd311e4125b3627da0839a0 SHA-256: 64b7f5ee140d4d193b542bc906b2f555d5a323c5c752db19f925d5badaf6fc5e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body, though heavily obfuscated, contains references to game-related terms and URLs, reinforcing the lure. The primary function appears to be directing users to potentially harmful websites through a deceptive download or hack generator pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.online/app/431946152/roblox-royale-high-diamond-hack-game-hack In PDF document text
    • http://muslib.unmus.ac.id//repository/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/what-is-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/grab-points-login_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-install-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/blox-fun-info_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/pokemon-go-free-install_GM1094591345.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_004_off000052a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A4 26500 bytes
SHA-256: 0d8d662c1c4db66a9033878472d5ec627e707a55039c492e7523e520b241b18c
font_01_sfnt_off00008f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F78 19536 bytes
SHA-256: 9cb526c501b2cd2656a87403f494b9e3e6e4dc663a80e951563c0ffcc034b5e2

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