Malicious PDF — malware analysis report

Static analysis result for SHA-256 89212004fb94ef54…

MALICIOUS

PDF

42.6 KB Created: 2021-05-19 02:40:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b52ab4c00ffa74f90dfeb3e1c0d78d1c SHA-1: 1f3f10faaf3ee394f994d68cb8cf95bb3e7ded02 SHA-256: 89212004fb94ef54c3c4ae58cdec6e4b0d06f89039b39654a3b353119286a61d
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/406889139/coin-master-daily-free-spins-link-today-2021-game-hack PDF link annotation
    • http://www.peterdejonge.nl/images/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/real-minecraft-for-free_GM479516143.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_off000049e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E9 24468 bytes
SHA-256: 4348d751ca4024efbbb848f904e394634ac6bc6f4e280f53780cb18cb1629b9d
font_01_sfnt_off000081e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E3 19052 bytes
SHA-256: 51ec1fd699785aa8f843f12306ac352f9679003eb9b4544ea09afbac11be1d71

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