Malicious PDF — malware analysis report

Static analysis result for SHA-256 68110561d04204ff…

MALICIOUS

PDF

35.8 KB Created: 2021-07-05 15:27:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dee372da3f2b0536b082497b07897b4a SHA-1: 7ad96aa2472e91a9ee68eb457ccb6a06a4ba54c3 SHA-256: 68110561d04204ff159d70cd82022f091c6e69f0395c15e478374d5db39818d4
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.tw/app/406889139/wwwcoin-master-hack-apk-game-hack PDF link annotation
    • https://www.thekukkad.com/uploaded_files/userfiles/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/roblox-hacks-for-chromebook_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/free-robux-no-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/roblox-skywars-free-mega-vip_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/roblox-hacker-tshirts-images_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/roblox-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/hack-compt-roblox_GM431946152.pdfIn PDF document text
    • https://www.thekukkad.com/uploaded_files/userfiles/files/roblox-free-password-and-usernames_GM431946152.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
font_00_sfnt_off0000327f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327F 23940 bytes
SHA-256: c6e15a99b67c8990707b3f68d87a047ac83f2112efc7c2de88c9097593aa1a2c
font_01_sfnt_off0000683c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x683C 18544 bytes
SHA-256: b520c3bc7ebd8c42fe6eeca2240ec3f866f18b07b49e0828198d0e3037460273

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