Malicious PDF — malware analysis report

Static analysis result for SHA-256 2123c574bf3f30f0…

MALICIOUS

PDF

47.0 KB Created: 2021-06-03 07:52:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 885ff10e94bfae269f7f470529dacfd9 SHA-1: c91fe1888c5d637e9140a29f2c5443ecb700392c SHA-256: 2123c574bf3f30f02d20d8579f3601e14fe85859c49747a2fdad0a4fd59a0d78
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 0.9832

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-pc-free-game-hack PDF link annotation
    • http://e-library.akbid-purworejo.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coinmaster_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/tiktok-free-now_GM835599320.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/robux-free-co_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_off000053b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53B2 31396 bytes
SHA-256: efc6113a1d24826facea37b8b6b1fc9626768c4323fcc42a7a42290c2a4babdf
font_01_sfnt_off0000961f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961F 18036 bytes
SHA-256: d1e417f8400c4227caca57c80f12745841979f8062967c06e5a64cb2220bf511

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