Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3b754fe07d94d33…

MALICIOUS

PDF

43.8 KB Created: 2021-05-16 06:12:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 291e3a029a3dd0f21c389c6b5e24444e SHA-1: 225eb4cea9008f27371ce03508029153803414af SHA-256: f3b754fe07d94d336d3ca83ac580df176cf4c7b4b60d132950a8a243a0e5841a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt to drive traffic to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/how-do-we-get-free-robux-game-hack In PDF document text
    • https://www.audev.com/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://audev.com/images/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • https://audev.com/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://audev.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://audev.com/images/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://audev.com/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://audev.com/images/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • https://audev.com/images/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://www.audev.com/images/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.audev.com/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://audev.com/images/www-roblox-robux_GM431946152.pdfIn PDF document text
    • https://audev.com/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/withdraw-robux_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/free-robux-live_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_off00004abf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ABF 26880 bytes
SHA-256: 1f726df0575aad3288dcf47d07d83baf39a15ec6e1ac20b333476cf7e9a7f406
font_01_sfnt_off000087ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87AE 18648 bytes
SHA-256: 357fc7c7eb6196ee12ed3080908575177554d85b467bf9142ee0ee232c3cf829

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