Malicious PDF — malware analysis report

Static analysis result for SHA-256 94bbff455d7cdea5…

MALICIOUS

PDF

42.7 KB Created: 2021-05-15 05:00:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 42a914b113d7c50d31b4c0433bf4c52f SHA-1: a3e638752c186756e188e628c6214cf4732e2b4f SHA-256: 94bbff455d7cdea529069a0e9ed9de15056ab1b2bd555521a12809955399b598
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 0.9973

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.xyz/app/406889139/coin-master-hack-apk-game-hack PDF link annotation
    • https://www.quistschoenenhalsteren.nl/images/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/coinmaster-links_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/android-coin-master-hack_GM406889139.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_003_off00004c55.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C55 24928 bytes
SHA-256: f8bd9dd9e456582cd73aa2234318815ea6ab88213c8062e8b2d68959a90b7579
font_01_sfnt_off000085e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85E1 17892 bytes
SHA-256: f939fda97690d6a809d743b342add8ec97984f5e978608423f32dd39679c4d64

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