Malicious PDF — malware analysis report

Static analysis result for SHA-256 996704b4c42a8b11…

MALICIOUS

PDF

42.7 KB Created: 2021-06-04 03:47:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 95da37eed0228dff7a6cbbd66a206496 SHA-1: 32df984c1d01fa1ac493900bd5bb306edc516b4c SHA-256: 996704b4c42a8b11e896d3606109cb282d3ac57925d29b5ea08f583d3aca61b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links and a visual call-to-action button, strongly suggesting an attempt to trick the user into downloading a secondary payload. The ML classifier also flagged this PDF as malicious with high confidence. The primary IOC is the external URL which likely hosts the malicious application.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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/406889139/hack-coin-master-ios-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/without-human-verification-pubg-uc-hack_GM1330123889.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/pokemon-go-free-promo-code_GM1094591345.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-pokeballs-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004cdf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CDF 24804 bytes
SHA-256: fa1344972c926a8ae422ef067fa9fac6e5f61e21144ebe3a8824492fa756f185
font_01_sfnt_off000085c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C5 17716 bytes
SHA-256: 4e3a035fcc4d7e34a70bc1936180ad88d62d1a278a85b436915b1920e97724ff

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