Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59458720972813e…

MALICIOUS

PDF

35.8 KB Created: 2021-06-22 23:10:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3400d61e6fcc52ed62fbdaee7c45c6e9 SHA-1: 514ece7e2d5deb252f88f6a2db6f826ea2f62981 SHA-256: b59458720972813e71404c51f542df04b0cfaa19d459cf77d048a201af1ae67f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text promoting 'free Robux' and 'game hacks', indicating a lure for users to click on malicious URLs. The primary URL, http://netcdn.co/app/431946152/how-to-get-free-robux-without-using-apps-game-hack, is identified as a malicious redirector. The document's content and heuristic firings strongly suggest a social engineering attack aimed at tricking users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-using-apps-game-hack In PDF document text
    • http://rollipolli.hu/userfiles/files/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/roblox-free-png_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/hack-roblox-jailbreack_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-robux-no-human-verification-2021-mobile_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-use-cheat-engine-on-roblox-2021-67_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-robux-for-free-on-a-phone_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/good-roblox-games-to-hack_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-roblox-redeem-card-numbers_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/answer-questions-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://rollipolli.hu/userfiles/files/free-coin-master-game_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_off000031cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CB 22864 bytes
SHA-256: deab60e8d431a869087bd4c6435a4351a8732c26ebec91c9cde20fdda751ab9f
font_01_sfnt_off00006525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6525 19644 bytes
SHA-256: 462098d38e7e95acef74bbf459bac525cafabb843fe58a8092f27a03efaa82e6

Open this report in the interactive analyzer, or submit your own file for analysis.