Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89122c7855eeece…

MALICIOUS

PDF

44.3 KB Created: 2021-06-08 20:17:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: edc68f0cd988cc7eb94756f23d415ce8 SHA-1: ae3230b1f255bf940cca9d901892e0716f98054c SHA-256: d89122c7855eeeced2e692382af34f94bb649e858ced92ce750b054183f719a2
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 0.9865

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.tw/app/431946152/how-can-you-hack-roblox-game-hack PDF link annotation
    • http://www.art-concept.gr/images/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-codes-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/best-star-wars-maps-free-modeled-roblox_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-dll-hack-file_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/free-robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-scrip-super-poderes-no-hacks_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-how-to-look-cool-for-free-2021_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/how-to-hack-roblox-account-on-mobile-2021_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://art-concept.gr/images/roblox-hacked-face-id_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-heaven-free-spins_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_004_off00004f81.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F81 24968 bytes
SHA-256: 8df007e0fcae3d575910d3bc1cfa33eca74cf07db0d07c67c705d39e43823b01
font_01_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 18648 bytes
SHA-256: a319489578e32fbed5813ac3d6befbc43864a4f05d0c159ccfeb85ff26a43968

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