Malicious PDF — malware analysis report

Static analysis result for SHA-256 6faa0ada06958a47…

MALICIOUS

PDF

46.8 KB Created: 2021-05-11 02:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9352259606f2d1bf85119779b1fc2cd7 SHA-1: dde5fc2d25fb60260772946b39fc59b68a1d90d5 SHA-256: 6faa0ada06958a478272ab2af2f110cea720c86208eabc1a973dc4f7569af425
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 0.8948

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/google-coin-master-free-spins-game-hack PDF link annotation
    • https://www.neovision-group.net/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://www.neovision-group.net/images/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://www.neovision-group.net/images/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • https://www.neovision-group.net/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.neovision-group.net/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.neovision-group.net/images/earn-robux-com_GM431946152.pdfIn PDF document text
    • https://www.neovision-group.net/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • https://www.neovision-group.net/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://www.neovision-group.net/images/wurst-112_GM479516143.pdfIn PDF document text
    • https://www.neovision-group.net/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a78.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A78 24620 bytes
SHA-256: dbd2d9f2e0664e1ab5c4adc82a2534010b67426e8351aca546972c09eba76440
font_01_sfnt_off000082b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B8 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_02_sfnt_off000094d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94D1 18248 bytes
SHA-256: d32188c22f9df4e49535359cc17236f14c93b7b5c7ebedc8928f30f104243849

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