Malicious PDF — malware analysis report

Static analysis result for SHA-256 5852433055957920…

MALICIOUS

PDF

48.7 KB Created: 2021-05-15 15:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c6dea07951a9d32141a2e5f2017bf043 SHA-1: 60097b13ced462a333ecfce00d3643e1c524c137 SHA-256: 58524330559579207e6c856d1a0094fbdcec4d306a18f81e0a1da2e29d7a22ef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as generators for game currency or hacks. The document body, though partially corrupted, contains a URL that aligns with the heuristic findings. The presence of multiple malicious links indicates a clear intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/how-to-hack-coin-master-cheat-engine-game-hack In PDF document text
    • http://altc.de/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://altc.de/images/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://altc.de/images/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://altc.de/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://altc.de/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://altc.de/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://altc.de/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://altc.de/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://altc.de/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000484a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x484A 25004 bytes
SHA-256: 2c7b4120322284426c2eed8c94990032d04bb66055a3dcb7f76d2f5b804638a3
font_01_sfnt_off00008218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8218 4708 bytes
SHA-256: 843376698a14cebbe55e33b54226b05b39baa8215c076f6183919f48c3bd709b
font_02_sfnt_off0000917f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917F 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009b6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B6F 18332 bytes
SHA-256: 3a4ccd6cf68d04e1f61f192e0e505e5625435643e4a63e10a197213400e78cbb

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