Malicious PDF — malware analysis report

Static analysis result for SHA-256 5212e8b3b3aef28a…

MALICIOUS

PDF

34.6 KB Created: 2021-06-18 04:12:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c94decac55041d00e9611b57aa65f35a SHA-1: ea8d4ded31eb92ed977be6cdbcc48a6929c862b4 SHA-256: 5212e8b3b3aef28a4b6d450cbcfc74e5f209dd4c3d1cda96cdd29de586611466
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/roblox-account-hack-app-game-hack PDF link annotation
    • http://asiasieja.pl/images/how-to-hack-robux-on-roblox-with-google-chrome_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/free-promocodes-for-roblox_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/robux-generator-online-free_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://asiasieja.pl/images/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-get-free-xp-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-coins-free_GM406889139.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_off000031ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31AB 22016 bytes
SHA-256: 112cdbf0024d34074b66eefb311d0273f2be2630849da94758df72daca7fd45c
font_01_sfnt_off00006293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6293 18892 bytes
SHA-256: 62b5cb9e89b13307cdad077fa8539cb0582ee5b5e2452bf9290940a3d06e4629