Malicious PDF — malware analysis report

Static analysis result for SHA-256 752fd04ef2a48c8a…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 18:06:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 605ad038f79dfddf3e0b6892af5b033c SHA-1: b4a1b86630f3d8d45fc9de777c77dce424d7c96d SHA-256: 752fd04ef2a48c8a80ceaa519d5edc0e5f19b3e0f6064a414509c9dddba48faf
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 for popular games. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting malicious sites. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attack, likely initiated via spearphishing.

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/406889139/coin-master-free-spins-today-daily-links-game-hack In PDF document text
    • http://linde-erbach.de/images/robux-gratis_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/krnl-download_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/optifine-pe_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-codes-no-human-verification_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_off00004d58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D58 25052 bytes
SHA-256: 1c9269c9d36d34b1e21408265eb04eb5431160a0136a53aff8423c6ff5cbf6ea
font_01_sfnt_off0000854d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854D 18652 bytes
SHA-256: 52d597ff4b9023df6b3510b92f87dc1d2329aed0448bc9fa59130058567cb992

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