Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5418bc0c93c9652…

MALICIOUS

PDF

43.4 KB Created: 2021-06-03 04:06:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1383558369f033ccde4284b013f0699f SHA-1: 1bf11cfb8bb403517b9d496a7e20320d536249ce SHA-256: a5418bc0c93c96528006b34a43940784684d5c3200b215ddd318beec783bd0c5
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 0.9865

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.online/app/406889139/coin-master-daily-free-spins-link-2021-today-game-hack PDF link annotation
    • http://library.stieyapan.ac.id/repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-demon_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/robux-generator-com_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-spin-and-coin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/ways-to-get-free-robux_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
stream_004_off00004e0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E0F 23920 bytes
SHA-256: e0295a876c9848267fcd8798e5e7fd5c821ab9bdeb95875af6d451572bb3b757
font_01_sfnt_off00008497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8497 19052 bytes
SHA-256: eaae1ca97f535f7f19a3027bb05b0c0b9ff144311ff5366650acbeeb70d65258

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