Malicious PDF — malware analysis report

Static analysis result for SHA-256 5400d521115e1c7f…

MALICIOUS

PDF

33.3 KB Created: 2021-07-04 12:03:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: aaaa2ebb75a9245af0246bf31f6e98cd SHA-1: e90c324b67fda9aeffea83bb1e5685c5c361108e SHA-256: 5400d521115e1c7fcbc17b9c93241ce9c8828af9f73df449d1b4151a7dd71835
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/479516143/free-minecraft-account-game-hack PDF link annotation
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/aroboy-10-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-avatar-maker-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-bugatti-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/hack-mad-city-roblox-cpat_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/hacks-for-mm2-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3E 22000 bytes
SHA-256: df42e9aee571cb232e9b0ec2b1cc31838ae30a47a24bb33e23a8fd214ff9f823
font_01_sfnt_off00005fb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB5 18140 bytes
SHA-256: bf622982fa8c99a0d325c1609f31225d3bf40058dc9cd86c15c3e8f5bbc20de8

Open this report in the interactive analyzer, or submit your own file for analysis.