Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4687e22115e380c…

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 05:14:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f554d2777a8bef57fea7a6613152fd2e SHA-1: 3081bb562179ac9ad98d77783526684c258e4c55 SHA-256: a4687e22115e380c30a5c55fc776a05a1567714833acd296688c28b40f1a29d2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/406889139/coin-master-hack-2021-download-game-hack PDF link annotation
    • http://www.ck-ceramic.com/Public/upload/editorfiles/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.ck-ceramic.com/Public/upload/editorfiles/1x1x1x1-roblox-id_GM431946152.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_off0000500e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x500E 25232 bytes
SHA-256: 38b758bc0b7893068040480547a75f8dc58835536508a4e8e2c37f590f640cb5
font_01_sfnt_off00008938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8938 18696 bytes
SHA-256: 01e33fa384fcd9559826a4aa1de189e20085b3e2fa6b70097625b29721cffd1e

Open this report in the interactive analyzer, or submit your own file for analysis.