Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3f8c9f59756f394…

MALICIOUS

PDF

44.5 KB Created: 2021-05-15 14:13:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e5de55c23316c8b3807f6e6d874e94ef SHA-1: 8af240723dc029779f4d5b6415a2e6d4426ab1f4 SHA-256: e3f8c9f59756f3949528533f8ef55f76de62ed2c6a0bac6df99b2aacb7647f44
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The primary URL points to a site offering 'free spins and coins' for Coin Master, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially malicious content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-link-daily-get-free-spins-and-coins-game-hack PDF link annotation
    • http://linde-erbach.de/images/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/robux-today_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/how-to-get-free-robux-on-phone_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_off00004749.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4749 30356 bytes
SHA-256: d97a5bb4c08d9caa6a592a32510f3241d178c3e131dafe721c837a5f4b6ca2f5
font_01_sfnt_off00008aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAC 18652 bytes
SHA-256: 0bf586afe4d5f3c7a2e6d5ddfec06764aa84fbd58834f3b0eff460c3a87010f1

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