Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8ba0563a3528117…

MALICIOUS

PDF

43.7 KB Created: 2021-05-10 17:11:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 227454f5a0e2f40d07cef2d0962aad7c SHA-1: b01bce5843055217f9869b8480368217b508cd71 SHA-256: d8ba0563a3528117d136f830e72e06207752b271b38a8c0fd0c5e9456b23628e
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 0.9969

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-game-android-free-download-game-hack PDF link annotation
    • https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-free-skins-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • https://www.dotnotion.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004f4a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F4A 25140 bytes
SHA-256: fd4bbd9e73a36e311e70cfd689e67863e2d0e22ee6cdbadea3617e4d7f8ddbd7
font_01_sfnt_off000087a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A7 18548 bytes
SHA-256: 410bff1bf062602f617a153b189e58c0fc30012b031a4f5a53fb6347e35a049e

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