Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c2d594dd3c9ab19…

MALICIOUS

PDF

36.3 KB Created: 2021-06-23 00:57:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 67f080a3cc6a7258d07e1564023112d3 SHA-1: d316c702dfe0561277fa04d6147f56966eaf6f3c SHA-256: 8c2d594dd3c9ab1985716766e0c715b7758964514c2b7620036765d6130256c4
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 0.9980

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 http://netcdn.co/app/431946152/free-roblox-promo-codes-2021-september-game-hack PDF link annotation
    • https://dribledasortegaucho.com.br/uploads/files/no-human-verification_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/how-to-hack-bo-in-martial-arts-roblox_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/roblox-obby-cheats_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/hack-web-for-roblox_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/dailyrobux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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
font_00_sfnt_off000033af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33AF 22732 bytes
SHA-256: 450a6ceaf9ffb198ec68bcd0760aff040c9196383327bf2c3b4a32e1f73745fd
font_01_sfnt_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 19920 bytes
SHA-256: 3564e43265151850f9919971d5e1737ef87200eea10a0263d731ea6b4d333d3b

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