Malicious PDF — malware analysis report

Static analysis result for SHA-256 73f1be606c112666…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 10:19:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 03dab251dd246f96502d5bf558614f6c SHA-1: 09ab8da2f90ac017c8f1b0a2796ba72a80080de0 SHA-256: 73f1be606c1126661dd7c90d79f732306545979c3cd18008a429ce4bab816f5d
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-100-spin-slot-game-hack PDF link annotation
    • http://asiashop-france.fr/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/dailyrobux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/hack-xp-net-coin-master_GM406889139.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_off00004937.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4937 25604 bytes
SHA-256: 3dce2e80decb0f4eaf59050f047af781074d39e79308f2bb716bf2457aa615bb
font_01_sfnt_off00008385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8385 18072 bytes
SHA-256: e186f2c49e0e53813a98f8c0f9ecdb2b905b101c49c302baec32f8d5c8ad9fd8

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