Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1bbcd6d23766a54…

MALICIOUS

PDF

42.3 KB Created: 2021-05-10 14:21:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 29494e6d02f75e993210b31f70df6035 SHA-1: 5329fe7698d2a902f402437242849c958093e5b8 SHA-256: e1bbcd6d23766a54a75fd52eb8a3d582040304089731b2b575899c32fa1148b8
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/431946152/free-roblox-hair-codes-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-robux-today_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-soins_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_off000049f0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49F0 24496 bytes
SHA-256: 132b214807a7222e2e8248cadf4d6e3fbc173320627ef32c8522f1287ce553cd
font_01_sfnt_off00008282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8282 18472 bytes
SHA-256: 58bd8e37bff2e40e3b0dd1e4e28472cf67d664de325b47398c2f4df4c0a3a645

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