Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7d5fd055f35d26…

MALICIOUS

PDF

38.0 KB Created: 2021-06-19 21:51:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44f3930ffdc86ec875badef4b87654aa SHA-1: cc818a068da7266a0907c8139b956b2d2498c669 SHA-256: ea7d5fd055f35d26f519521ff80e9f8cf0cbd45d2d84d103d5dec82910159645
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, disguised as a generator for game hacks and in-game currency. The document body and heuristics strongly indicate a social engineering lure to trick users into visiting the malicious URL, likely for further malware delivery or phishing. No scripts were extracted, but the PDF structure and embedded URLs are sufficient to determine the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/hack-para-phantom-forces-roblox-game-hack In PDF document text
    • http://library.unissula.ac.id/fe/repository/pokemon-go-free-remote-raid-pass-february-2021_GM1094591345.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/mc-update_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-hack-in-any-game-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/pokemon-go-free-coins-generator_GM1094591345.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-studio-free-download-pc_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/jailbreak-cheat-codes-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-get-free-stuff-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/hack-roblox-dungeon-quest_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-hack-in-roblox-games_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-robux-instantly_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_off00003ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CA8 22388 bytes
SHA-256: fb6ae6dff8fe7b654b6569874b3e6e7b5c2a81219f38ee500dda60b5c0714806
font_01_sfnt_off00006e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E93 19504 bytes
SHA-256: 691773027b635a34cec6d2f0b0b394869fc7ece716f47cc29bb7cad7fe1be9e2

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