Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ff7e93eb337f97d…

MALICIOUS

PDF

40.6 KB Created: 2021-04-25 07:26:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fefca7c9a836d1991e30646c2247aa69 SHA-1: 247eda91c35ce1fefdedfceba481860305cb7e46 SHA-256: 6ff7e93eb337f97dc70364db4aeb6c93fc50db41d42b20bd7eac2c25ae3a4dfc
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 0.9941

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/431946152/roblox-aqua-hack-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/redeem-roblox-card-codes-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-virtual-item-codes-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-by-inspecting-element.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/noclip-cheat-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-russian-flag-roblox-t-shirt.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-cool-shirts-free-shipping.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-unlimited-robux-ad.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/como-volar-en-roblox-hack.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-no-hack-or-download-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-ro-hacks.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
stream_003_off0000430d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x430D 25024 bytes
SHA-256: 6bc4e771c90ecf263fbe40f7a2573724b93d7230fb88edf64696a3144f9589c5
font_01_sfnt_off00007c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C48 18492 bytes
SHA-256: 8913d75ef808f39429baaa764e839b3da0d793d5f0b30c42f5312d71ba60bcc8

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