Malicious PDF — malware analysis report

Static analysis result for SHA-256 3013461348e007f3…

MALICIOUS

PDF

42.7 KB Created: 2021-05-12 09:35:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 452fb2a37897e92c58410d1dbde67988 SHA-1: 9649d3fb961abf24e3270eacbb25bd0a105d2c18 SHA-256: 3013461348e007f37381b0257108392613e46efb7beb14e01ebdddb5af0d2e95
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a URL that promises free Robux. The document body, though heavily obfuscated, contains references to the same URL and the wkhtmltopdf application, suggesting it was generated to appear as a legitimate link. The primary lure is to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/best-way-to-get-robux-game-hack PDF link annotation
    • https://www.shin.ge/images/roblox-person_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-rewards-site_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-monster_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-hack-someone-on-roblox_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
stream_003_off0000461f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x461F 26364 bytes
SHA-256: 7d0d640a1a4d012974783c44fefa7dfc0f668fb1c923c5a1e6c77382ab61e3d2
font_01_sfnt_off00008395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8395 18560 bytes
SHA-256: d4298167564158e2fe6287b202ed8cba1ae7047430a0487301977ebc109c0fc7

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