Malicious PDF — malware analysis report

Static analysis result for SHA-256 394a529aa7297bfb…

MALICIOUS

PDF

47.3 KB Created: 2021-05-13 18:22:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 17721cb29e7546bdf9fe1a850c451b3f SHA-1: 4120968c7674bfc689e40d295d899161d04d6f48 SHA-256: 394a529aa7297bfb93690e902bfc90c74de0a44ab030c45119206964b35fdc79
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 0.8619

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/479516143/play-minecraft-online-free-game-hack PDF link annotation
    • http://algierimasonry.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/robux-boost_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/rape-simulator_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-things-on-roblox_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a47.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A47 24524 bytes
SHA-256: ee7cbef412d427888225483df85fda1e41b7e9a9de0533441286857655842351
font_01_sfnt_off00008275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8275 3068 bytes
SHA-256: d4293e5432c61e150834c71acc76814f228d81835432cd96a3f68057dbb4b3a3
font_02_sfnt_off00008cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFA 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off0000970b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x970B 17976 bytes
SHA-256: e953997c623ab1bd3546e7b188ca680e36d1015a1cf7f46efbbf98890a47325d

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