Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b18c58903fb4ba2…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 12:25:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e90ad85c4f7df3ccefdf7ec8a823fb90 SHA-1: 17e48f676c30399929acf91f1932eb567ea2131e SHA-256: 6b18c58903fb4ba2736449babf2bd564c576f9871b9be6cf803a5de4d979d074
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack lure, specifically for Pokemon Go. This link redirects to a suspicious URL, suggesting an attempt to trick users into visiting a potentially malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/1094591345/pokemon-go-free-raid-pass-game-hack PDF link annotation
    • https://www.insol-europe.org/uploads/files/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/hack-master-coin_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-minecraft-account_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_off00004f8a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F8A 24760 bytes
SHA-256: 18f7d88e6e2b1216c4f3dc9ab3299e964ca808aa43aad2357d9bc6eb73d0d4cd
font_01_sfnt_off0000881e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881E 18364 bytes
SHA-256: ef02fbb7eef75fe022ea22bdc551eb0b405c3feeeef97045acccae2c4e7c7444

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