Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb0b2be0a650968…

MALICIOUS

PDF

42.3 KB Created: 2021-05-15 09:50:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ba85b518eb612eb452999f828fe4189a SHA-1: 2c302e53718ae8184c225ea9a3914b26a1617de6 SHA-256: 7eb0b2be0a6509688b45b4d43ee740dbab1d78232fcb730836943f326bec7aa0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/how-to-get-minecraft-for-free-on-xbox-one-game-hack PDF link annotation
    • http://s-punkt-objects.de/images/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/robux-only_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://s-punkt-objects.de/images/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/coin-master-free-food_GM406889139.pdfIn PDF document text
    • http://s-punkt-objects.de/images/how-do-u-get-free-robux-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_off000049c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C8 24928 bytes
SHA-256: 642bb3203941f4b1a8113acc6ea5e1a7f9f34f918ad9d2ce2f89a6b766e7bf62
font_01_sfnt_off00008273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8273 18472 bytes
SHA-256: 63446f7755945d37ec8b97d22fda434cb08cbf4c61a02f7f94d2af605f03b611

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