Malicious PDF — malware analysis report

Static analysis result for SHA-256 775e0a9c96cdaf77…

MALICIOUS

PDF

42.9 KB Created: 2021-05-15 12:12:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 011bfb73891566f43c25e256ba395915 SHA-1: 669f42a56fc98cb21c20e132a35f0cadc4c4ca66 SHA-256: 775e0a9c96cdaf7754b9b452fda098eabfbb7dbc740ac8a60c69cf47bfe534ce
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary redirect URL is https://netcdn.xyz/app/431946152/robux-in-game-hack, which is associated with known malicious redirector activity. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/robux-in-game-hack In PDF document text
    • http://pythonbikers.de/images/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/best-hacked-client_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-for-kids-no-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_off0000472d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x472D 27464 bytes
SHA-256: 251371d1ee708b807948f38ddeea938d97e114eda291065cb215bda466a24df8
font_01_sfnt_off000086ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86BA 17852 bytes
SHA-256: 7ee051f4e2d26a9a04c66646782e9314ee13ce973b90acfdb1eca38aa40a5769

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