Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc69a43573ef03d…

MALICIOUS

PDF

54.1 KB Created: 2021-05-10 17:51:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a87823dea1cd81fc965d5b7a0ef07c4e SHA-1: c7b167748b5e7fd219e35ccad9ee1526ef40f299 SHA-256: 6fc69a43573ef03d86daeea8f12815a97e72c69c06bbd48396a501e80ef27245
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for game hacks and free Robux, directing users to a malicious URL. The PDF_GAME_HACK_REDIRECT_LURE heuristic and the embedded URL strongly indicate a phishing or scam attempt. While no scripts were explicitly extracted, the nature of the lure suggests it could be used to download further malicious content or redirect to credential harvesting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8795

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/promo-codes-to-get-free-robux-game-hack PDF link annotation
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/minecraft_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/www-rubux_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c56.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C56 32940 bytes
SHA-256: b2fedebff6a4e25b6010a5bb7eb6075131f28329d826390b8ffba80d93abd818
font_01_sfnt_off00009942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9942 2820 bytes
SHA-256: d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b
font_02_sfnt_off0000a2d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D7 5756 bytes
SHA-256: 400ee760d8ba2af4a989a89998a708334648619bc88f048e6e7319998473a993
font_03_sfnt_off0000b02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB02C 18704 bytes
SHA-256: 994ba2c21992eebcab5dcb0bf7b99b22a17e2009da779e2696cdc2096136ed4a

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