Malicious PDF — malware analysis report

Static analysis result for SHA-256 e269440af83c782d…

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 05:01:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9b1955714c8ee0796db6607b36b5f0b7 SHA-1: af9750470cd88938990eee6af606fd122bdc7f09 SHA-256: e269440af83c782d258af4e5d8d3c522f0c358ff2e90e0d531b801bb844ebb88
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 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-robux-without-going-on-roblox-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/obc-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-de-roblox-deathrun-descargar_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-on-roblox-in-3_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-for-robux-no-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9C 22488 bytes
SHA-256: 5d4c2f64f01b988bb5889762cf7a3fac0194b03a359d8fd94c1e1f25c17a4800
font_01_sfnt_off000061c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C9 19544 bytes
SHA-256: baefaf4f71ebc275808a2ff9fec1573c137fe019affd517b737d02d6aca7318f

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