Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d7e9fb19cf216fb…

MALICIOUS

PDF

42.2 KB Created: 2021-05-14 11:51:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2166e5ab920639dcdd5d120148785010 SHA-1: d1fb2f01fb52c7c54cb7483f88a464b8eee35323 SHA-256: 1d7e9fb19cf216fb7ca95a0be9907c1f545c5058546eb28bd91155020e5afb29
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' and 'game hacks' for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-spins-apk-2021-game-hack. The document body and embedded URLs suggest a phishing or scam attempt to lure users into clicking malicious links, likely to download further malware or compromise accounts.

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/406889139/coin-master-free-spins-apk-2021-game-hack In PDF document text
    • http://pythonbikers.de/images/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/mc-hacks_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/best-hacked-client_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/robux-no-verification_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/body-roblox_GM431946152.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • http://pythonbikers.de/images/how-to-get-free-robux-on-roblox-2021_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_off0000490d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490D 25092 bytes
SHA-256: bde7cd5daaa046dfb17071a5c8411870441fcad76592b504ea5f921ffc48d396
font_01_sfnt_off000081e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E9 18456 bytes
SHA-256: 29cdb33c079fef0813399b5d3456e0cee6bb382532089b205a8c189028fb290e

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