Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a9104f24df9ad4…

MALICIOUS

PDF

43.3 KB Created: 2021-05-17 07:31:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d95f193617cca6cb54fc5dbe07432bac SHA-1: c0719774e7a7892ffb669856c9ee38adefb4cfac SHA-256: d1a9104f24df9ad41a7d06e950009ea0308c38593511703720114d373d3b6c75
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 0.9648

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-free-cards-game-hack PDF link annotation
    • http://gruporamos.do/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/roblox-rape_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/roblox-re_GM431946152.pdfIn PDF document text
    • http://gruporamos.do/images/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://gruporamos.do/images/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
    • http://gruporamos.do/images/roblox-toy-codes-free_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4671 24320 bytes
SHA-256: f0c228cc2adad15c405f88103e85ed071c018842746862f403ebaa20f72e357e
font_01_sfnt_off00007df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF7 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off000087e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E1 17884 bytes
SHA-256: dce98ab1a9f6331dfaabbdd57dacdba92c66b57249d10e9c2a1df39138c2a47b

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